Mazda5 Mazda MX-5 Mazda6 Mazda CX-7 Mazda RX-8 Mazda CX-9

Transcription

Mazda5 Mazda MX-5 Mazda6 Mazda CX-7 Mazda RX-8 Mazda CX-9
3431-1U-07I(INDEX).fm 1 ページ
2007年10月5日 金曜日 午後1時6分
2008
Mazda3 MAZDASPEED3
Mazda5
Mazda MX-5
Mazda6
Mazda CX-7
Mazda RX-8
Mazda CX-9
Service
Highlights
Mazda3
MAZDASPEED3
Mazda5
FOREWORD
This manual explains components, system
operations and functions for the Mazda3,
MAZDASPEED3, Mazda5, Mazda MX-5,
Mazda6, Mazda CX-7, Mazda RX-8,
Mazda CX-9.
For proper repair and maintenance, a
thorough familiarization with this manual is
important, and it should always be kept in a
handy place for quick and easy reference.
All the contents of this manual, including
drawings and specifications, are the latest
available at the time of printing.
As modifications affecting repair or
maintenance occur, relevant information
supplementary to this volume will be made
available at Mazda dealers.
This manual should be kept up-to-date.
Mazda Motor Corporation reserves the right
to alter the specifications and contents of
this manual without obligation or advance
notice.
All rights reserved. No part of this book may
be reproduced or used in any form or by
any means, electronic or mechanical—
including photocopying and recording and
the use of any kind of information storage
and retrieval system—without permission in
writing.
Mazda Motor Corporation
HIROSHIMA, JAPAN
APPLICATION:
This manual is applicable to vehicles
beginning with the Vehicle Identification
Numbers (VIN),and related materials shown
on the following page.
Mazda MX-5
Mazda6
Mazda CX-7
Mazda RX-8
Mazda CX-9
© 2007 Mazda Motor Corporation
PRINTED IN U.S.A., SEPTEMBER 2007
Form No. 3431–1U–07I
Part No. 9999–95–010F–08
6 ページ
2007年10月3日 水曜日 午後2時54分
Mazda MX-5
CONTENTS
TITLE
ENGINE
SECTION
01
Mazda MX-5
3431-10-07IG(INDEX).fm
3428-1U-07F(01-00).fm 1 ページ
2007年10月3日 水曜日 午後3時46分
01
ENGINE
SECTION
Toc
of SCT
OUTLINE[LF]
. . . . . . . . . . . . . . 01-00
ON-BOARD DIAGNOSTIC
[LF] . . . . . . . . . . . . . . . . . . . . . 01-02
INTAKE-AIR SYSTEM[LF]. . . . 01-13
CONTROL SYSTEM[LF] . . . . . 01-40
Toc of SCT
OUTLINE [LF]
ENGINE ABBREVIATIONS [LF] . . . . . . . 01-00–1
ENGINE FEATURES [LF]. . . . . . . . . . . . . 01-00–1
On-board Diagnostic . . . . . . . . . . . . . . . 01-00–1
Intake-air System . . . . . . . . . . . . . . . . . 01-00–1
Control System. . . . . . . . . . . . . . . . . . . 01-00–1
ENGINE SPECIFICATIONS [LF] . . . . . . . 01-00–2
Specification . . . . . . . . . . . . . . . . . . . . . 01-00–2
End of Toc
ENGINE ABBREVIATIONS [LF]
NG: ENGINE COMPLETE
ABDC
ABS
AT
ATDC
BBDC
BTDC
CAN
CCM
CM
DC
DSC
EX
HU
IN
KOEO
KOER
MT
PID
RAM
id0100e1100100
After Bottom Dead Center
Antilock Brake System
Automatic Transmission
After Top Dead Center
Before Bottom Dead Center
Before Top Dead Center
Controller Area Network
Comprehensive Component Monitor
Control Module
Drive Cycle
Dynamic Stability Control
Exhaust
Hydraulic Unit
Intake
Key On Engine Off
Key On Engine Running
Manual Transmission
Parameter Identification
Random Access Memory
End Of Sie
ENGINE FEATURES [LF]
id0100e1100200
On-board Diagnostic
To meet OBD-II regulations
Improved serviceability
•
•
•
•
Diagnostic monitoring system test results changed
DTC changed
PID/DATA monitor function changed
Simulation test function changed
Intake-air System
Improved emission gas purification
• Variable tumble system adopted (AT)
Control System
Improved emission gas purification
• Variable tumble control adopted (AT)
01-00–1
Mazda MX-5
01-00
3428-1U-07F(01-00).fm 2 ページ
2007年10月3日 水曜日 午後3時46分
OUTLINE [LF]
End Of Sie
ENGINE SPECIFICATIONS [LF]
id0100e1100300
Specification
Specification
Item
2008MY
LF (2.0L)
2007MY
LF (2.0L)
DOHC-16 valves in-line, 4cylinder
Pentroof
1,999
{1,999, 122.0}
87.5 × 83.1
{3.44 ×3.27}
10:8
1,720
{17.54, 249.5} [300]
0—30
32—62
42
5
0.22—0.28 {0.0087—0.011}
[Engine cold]
0.27—0.33 {0.0107—0.0129}
[Engine cold]
←
MECHANICAL
Type
Combustion chamber
Displacement
(ml {cc, cu in})
Bore × stroke
(mm {in})
Compression ratio
(kPa {kgf/cm2, psi} [rpm])
Compression pressure
Valve
timing
Open
Close
Open
Close
IN
EX
BTDC (°)
ABDC (°)
BBDC (°)
ATDC (°)
IN
Valve clearance
(mm {in})
EX
LUBRICATION SYSTEM
Type
Oil pressure (reference value)
[oil temperature: 100°C {212°F}]
Oil pump
Oil filter
Engine oil
capacity
(approx.
quantity)
(AT, 5MT)
Type
Relief valve opening
pressure
(reference value)
Type
Bypass pressure
←
←
←
←
←
←
←
←
←
←
←
Force-fed type
337—591 {3.44—6.03, 49.0—
85.8}
(kPa {kgf/cm2, psi} [rpm])
[3,000]
Trochoid gear type
←
(kPa {kgf/cm2, psi}
420—520 {4.28—5.30, 60.9—
75.4}
←
Full-flow, paper element
80—120 {0.82—1.22, 11.6—
17.4}
←
{kgf/cm2,
(kPa
psi})
←
←
←
Total (dry engine)
(L {US qt, lmp qt})
4.75 {5.02, 4.18}
4.6 {4.9, 4.0}*1
4.75 {5.02, 4.18}*2
Oil replacement
(L {US qt, lmp qt})
4.05 {4.28, 3.56}
3.9 {4.1, 3.4}*1
4.05 {4.28, 3.56}*2
Oil and oil filter
replacement
(L {US qt, lmp qt})
4.45 {4.70, 3.92}
(L {US qt, lmp qt})
(L {US qt, lmp qt})
4.85 {5.12, 4.27}
4.05 {4.28, 3.56}
4.3 {4.5, 3.8}*1
4.45 {4.70, 3.92}*2
←
←
(L {US qt, lmp qt})
4.55 {4.81, 4.00}
←
Water-cooled, Electromotive
7.5 {7.9, 6.6}
Centrifugal, V-ribbed beltdriven
←
←
Engine oil Total (dry engine)
capacity
Oil replacement
(approx.
Oil and oil filter
quantity)
replacement
(6MT)
COOLING SYSTEM
Type
Coolant capacity (approx. quantity)
Water pump
01-00–2
Type
(L {US qt, lmp qt})
←
3428-1U-07F(01-00).fm 3 ページ
2007年10月3日 水曜日 午後3時46分
OUTLINE [LF]
Thermostat
Radiator
Cooling system cap
Cooling fan
Type
Opening
temperatur
(°C {°F})
e
Full-open temperature
(°C {°F})
Full-open lift
(mm {in})
Type
Cap valve
opening
(kPa {kgf/cm2, psi})
pressure
Type
Number of blades
Outer
(mm {in})
diameter
Fan motor
(W)
output
Specification
2008MY
LF (2.0L)
Wax, bottom-bypass
2007MY
LF (2.0L)
←
80—84 {176—183}
←
97 {207}
8.0 {0.31} or more
Corrugated fin
←
←
←
93.2—122.6 {0.95—1.25,
13.5—17.8}
←
Electric
5
←
←
360 {14.2}
←
120
←
Hi-ohmic
Top-feed
Voltage
←
←
←
Approx. 390 {3.98, 56.6}
←
Electric
48 {12, 10}
Premium unleaded fuel
91 [(R+M)/2 method] or adove
(96 RON or more)
←
←
Stepping motor
WU-TWC (monolith), TWC
(monolith)
Charcoal canister type
Closed type
←
12
←
(A·h)
46B24L (36)
←
(V-A)
12-100
←
←
←
FUEL SYSTEM
Injector
Type
Type of fuel delivery
Type of drive
Pressure regulator control pressure
Fuel pump type
Fuel tank capacity
(kPa {kgf/cm2, psi})
(L {US gal, lmp gal})
Fuel type (Anti-knock index)
EMISSION SYSTEM
EGR type
Catalyst form
Evaporative emission (EVAP) control system
Positive crankcase ventilation (PCV) system
CHARGING SYSTEM
Voltage
Battery
Type and capacity
(5-hour rate)
Output
Generator
Regulated voltage
Self diagnosis function
IGNITION SYSTEM
Type
Spark advance
(V)
Controlled by PCM
SEI (Single Electronic Ignition)
Electronic
1—3—4—2 (all cylinders
independent firing)
←
←
←
←
←
←
←
CYLINDER No.
CRANKSHAFT
PULLEY
Ignition system
Firing order
ENGINE
1
←
2
3
4
Spark plug
STARTING SYSTEM
Type
L3G2 18 110, L3Y1 18 110
←
01-00–3
Mazda MX-5
Item
3428-1U-07F(01-00).fm 4 ページ
2007年10月3日 水曜日 午後3時46分
OUTLINE [LF]
Item
Type
Output
Starter
*1
(kW)
Specification
2008MY
LF (2.0L)
Coaxial reduction
1.4
2007MY
LF (2.0L)
←
←
: Applied VIN (Assumed)
JM1 NC15F*7# 100001—130613
JM1 NC16F*7# 100001—130613
JM1 NC25F*7# 100001—130613
JM1 NC26F*7# 100001—130613
*2
: Applied VIN (Assumed)
JM1 NC15F*7# 130614—
JM1 NC16F*7# 130614—
JM1 NC25F*7# 130614—
JM1 NC26F*7# 130614—
Engine oil specification
Item
U.S.A. and CANADA
Except U.S.A. and CANADA
SM
Engine oil grade
(ILSAC)
Engine oil viscosity
End Of Sie
01-00–4
5W–20
(ILSAC)
API SM or ILSAC
5W–20 (If SAE 5W-20 engine oil is not available
in your market, use SAE 5W-30 engine oil.)
3428-1U-07F.book
1 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
01-02
ON-BOARD DIAGNOSTIC [LF]
ON-BOARD DIAGNOSTIC OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-02–1
Features . . . . . . . . . . . . . . . . . . . . . . . . 01-02–1
ON-BOARD DIAGNOSTIC SYSTEM
TEST MODE [LF] . . . . . . . . . . . . . . . . . 01-02–1
Sending Emission-related Malfunction
Code . . . . . . . . . . . . . . . . . . . . . . . . . 01-02–1
Sending Intermittent Monitoring System
Test Results . . . . . . . . . . . . . . . . . . . . 01-02–5
DTC DETECTION LOGIC AND
CONDITIONS [LF] . . . . . . . . . . . . . . . . . 01-02–5
KOEO/KOER SELF-TEST [LF] . . . . . . . . 01-02–6
KOEO (Key ON, Engine Off)
Self-test . . . . . . . . . . . . . . . . . . . . . . . . 01-02–6
KOER (Key ON, Engine Running)
Self-test . . . . . . . . . . . . . . . . . . . . . . . . 01-02–6
PID/DATA MONITOR AND RECORD
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-02–9
SIMULATION TEST [LF] . . . . . . . . . . . . . 01-02–11
End of Toc
ON-BOARD DIAGNOSTIC OUTLINE [LF]
SOKYU_NG: ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM)
id010245100100
To meet OBD-II regulations
Improved serviceability
•
•
•
•
Mazda MX-5
Features
Diagnostic monitoring system test results changed
DTC changed
PID/DATA monitor function changed
Simulation test function changed
End Of Sie
ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [LF]
NG: ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM)
id010245100200
Sending Emission-related Malfunction Code
• The DTCs are shown below.
×: Applicable
N/A: Not applicable
DTC No.
2008MY
2007MY
B1342
←
P0011
←
P0012
←
P0016
←
Memory
function
N/A
CCM
CCM
CCM
Self-test
type*3
C, O
C, R
C, R
C
2
HO2S heater
C, O, R
×
ON
ON
ON
ON
2
2
2
2
HO2S heater
HO2S heater
HO2S heater
HO2S heater
C, O, R
C, O, R
C, O, R
C, O, R
×
×
×
×
ON
2
CCM
C
×
ON
2
CCM
C
×
ON
ON
ON
ON
1
1
1
1
CCM
CCM
CCM
CCM
C, O, R
C, O, R
C, O, R
C, O, R
×
×
×
×
ON
2
CCM
C
×
ON
ON
1
1
C, O, R
C, O, R
×
×
ON
1
CCM
CCM
Engine cooling
system
Engine cooling
system
Engine cooling
system
C
×
C, O, R
×
C, O, R
×
Condition
MIL
DC
Monitor item
PCM malfunction
CMP timing over-advanced
CMP timing over-retarded
CKP-CMP correlation
Front HO2S heater control circuit
problem
Front HO2S heater circuit low input
Front HO2S heater circuit high input
Rear HO2S heater circuit low input
Rear HO2S heater circuit high input
Manifold absolute pressure/atmospheric
pressure correlation
MAF sensor circuit range/performance
problem
MAF sensor circuit low input
MAF sensor circuit high input
MAP sensor circuit low input
MAP sensor circuit high input
IAT sensor circuit range/performance
problem
IAT sensor circuit low input
IAT sensor circuit high input
Engine coolant temperature circuit range/
performance
OFF
ON
ON
ON
N/A
1
2
2
ON
P0030
←
P0031
P0032
P0037
P0038
←
←
←
←
P0069
←
P0101
←
P0102
P0103
P0107
P0108
←
←
←
←
P0111
←
P0112
P0113
←
←
P0116
←
P0117
←
ECT sensor circuit low input
ON
1
P0118
←
ECT sensor circuit high input
ON
1
N/A
×
×
×
01-02–1
3428-1U-07F.book
2 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
DTC No.
2008MY
2007MY
P0122
←
P0123
←
P0125
←
P0126
←
Condition
TP sensor No.1 circuit low input
TP sensor No.1 circuit high input
Excessive time to enter closed loop fuel
control
Self-test
type*3
C, O, R
C, O, R
Memory
function
C
×
C
×
C
×
C, O, R
C, O, R
C, O, R
C
C, R
C, O, R
C, O, R
C
C, R
C, O, R
C, O, R
×
×
×
×
×
×
×
×
×
×
×
Misfire
C, R
×
1 or 2
Misfire
C, R
×
1 or 2
Misfire
C, R
×
1 or 2
Misfire
C, R
×
1 or 2
Misfire
C, R
×
1
1
1
1
2
CCM
CCM
CCM
CCM
EGR system
C, O, R
C, O, R
C
C
C, R
×
×
×
×
×
ON
2
CCM
C, O, R
×
ON
2
Catalyst
C
×
ON
2
C, R
×
ON
2
ON
MIL
DC
Monitor item
ON
ON
1
1
ON
2
ON
2
ON
2
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
Flash/
ON
Flash/
ON
Flash/
ON
Flash/
ON
Flash/
ON
ON
ON
ON
ON
ON
2
2
2
2
2
2
2
2
2
1
1
CCM
CCM
Engine cooling
system
Engine cooling
system
Engine cooling
system
HO2S
HO2S
HO2S
HO2S
HO2S
HO2S
HO2S
HO2S
HO2S
CCM
CCM
1 or 2
Coolant thermostat stuck open
P0128
←
P0130
P0131
P0132
P0133
P0134
P0137
P0138
P0139
P0140
P0222
P0223
←
←
←
←
←
←
←
←
←
←
←
Front HO2S circuit problem
Front HO2S circuit low input
Front HO2S circuit high input
Front HO2S circuit problem
Front HO2S no activity detected
Rear HO2S circuit low input
Rear HO2S circuit high input
Rear HO2S circuit problem
Rear HO2S no activity detected
TP sensor No.2 circuit low input
TP sensor No.2 circuit high input
P0300
←
Random misfire detected
P0301
←
Cylinder No.1 misfire detected
P0302
←
Cylinder No.2 misfire detected
P0303
←
Cylinder No.3 misfire detected
P0304
←
Cylinder No.4 misfire detected
P0327
P0328
P0335
P0340
P0401
←
←
←
←
←
P0403
←
P0421
←
P0441
←
P0442
←
P0443
←
P0446
←
P0455
←
P0456*1
←
P0461
←
P0462
P0463
←
←
P0480
←
P0481
←
KS circuit low input
KS circuit high input
CKP sensor circuit problem
CMP sensor circuit problem
EGR flow insufficient detected
EGR valve (stepping motor) circuit
problem
Warm up catalyst system efficiency
below threshold
Evaporative emission control system
incorrect purge flow
Evaporative emission control system leak
detected (small leak)
Purge solenoid valve circuit problem
Change over valve (COV) (EVAP system
leak detection pump) stuck close
Evaporative emission control system leak
detected (gross leak)
Evaporative emission control system leak
detected (very small leak)
Fuel gauge sender unit range/
performance problem
Fuel gauge sender unit circuit low input
Fuel gauge sender unit circuit high input
Cooling fan relay No.1 control circuit
malfunction
Cooling fan relay No.2 control circuit
malfunction
01-02–2
×
×
C, R
×
2
Evaporative
system
Evaporative
system
CCM
C, O, R
×
ON
2
CCM
C, R
×
ON
2
C, R
×
ON
2
C, R
×
ON
2
CCM
C
×
ON
ON
2
2
CCM
CCM
C, O, R
C, O, R
×
×
OFF
1
Other
C, O, R
×
OFF
1
Other
C, O, R
×
Evaporative
system
Evaporative
system
3428-1U-07F.book
3 ページ
2007年10月3日 水曜日 午後2時16分
DTC No.
2008MY
2007MY
Condition
MIL
DC
Monitor item
Self-test
type*3
Memory
function
P0482
←
Cooling fan relay No.3 control circuit
malfunction
OFF
1
Other
C, O, R
×
P0500*4
P0505
←
VSS circuit problem
ON
2
CCM
C
×
←
OFF
N/A
N/A
R
N/A
P0506
←
ON
2
CCM
C
×
P0507
←
Idle speed control system problem
Idle speed control system RPM lower
than expected
Idle speed control system RPM higher
than expected
ON
2
CCM
C
×
C, R
×
P050A
←
Cold start idle air control system
performance
ON
2
P050B
←
Cold start ignition timing performance
ON
2
P0550
P0564
P0571
P0601
P0602
←
←
←
←
←
ON
OFF
OFF
ON
ON
2
1
1
1
1
P0604
←
ON
1
CCM
C, O, R
×
P0606
P0610
←
←
ON
ON
1
1
CCM
CCM
C, O, R
C, O, R
×
×
P0638
←
ON
1
CCM
C
×
P0661
←
OFF
1
Other
C, O, R
×
P0662
←
OFF
1
Other
C, O, R
×
P0703
←
ON
2
CCM
C
×
P0704*2
←
PSP switch circuit malfunction
Cruise control switch circuit malfunction
Brake switch circuit problem
PCM memory check sum error
PCM programming error
PCM random access memory (RAM)
error
PCM processor
PCM vehicle options error
Throttle actuator control circuit range/
performance problem
Variable intake air solenoid valve circuit
low input
Variable intake air solenoid valve circuit
high input
Brake switch input circuit problem
Clutch pedal position (CPP) switch input
circuit problem
Cold start
emission
reduction
strategy
monitoring
Cold start
emission
reduction
strategy
monitoring
CCM
Other
Other
CCM
CCM
ON
2
CCM
C
×
P0850*2
P1260
←
Neutral switch input circuit problem
ON
2
CCM
C
×
←
Immobilizer system problem
OFF
1
Other
C, O
N/A
P2004*5
N/A
Variable tumble shutter valve stuck open
ON
2
CCM
C, R
×
P2006*5
N/A
ON
2
CCM
C, R
×
P2009*5
N/A
ON
2
CCM
C, O, R
×
P2010*5
N/A
ON
2
CCM
C, O, R
×
ON
ON
ON
ON
1
1
2
2
CCM
CCM
Fuel system
Fuel system
C, O, R
C, O, R
C
C
×
×
×
×
ON
1
CCM
C, R
×
ON
1
CCM
C, R
×
ON
1
CCM
C, R
×
ON
1
CCM
C, R
×
P2088
P2089
P2096
P2097
←
←
←
←
P2101
←
P2107
←
P2108
←
P2109
←
Variable tumble shutter valve stuck
closed
Variable tumble solenoid valve circuit low
input
Variable tumble solenoid valve circuit
high input
Oil control valve (OCV) circuit low
Oil control valve (OCV) circuit high
Target A/F feedback system too lean
Target A/F feedback system too rich
Throttle actuator circuit range/
performance
Throttle actuator control module
processor error
Throttle actuator control module
performance error
TP sensor minimum stop range/
performance problem
C, R
×
C
C
C
C, O, R
C, O, R
×
×
×
×
×
01-02–3
Mazda MX-5
ON-BOARD DIAGNOSTIC [LF]
3428-1U-07F.book
4 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
DTC No.
2008MY
2007MY
P2112
←
P2119
←
P2122
P2123
P2127
P2128
←
←
←
←
P2135
←
P2138
←
P2177
P2178
P2187
P2188
P2195
P2196
P2228
P2229
←
←
←
←
←
←
←
←
P2401
←
P2402
←
P2404
←
P2405
←
P2407
←
P2502
P2503
P2504
P2507
←
←
←
←
P2610
←
*1
*2
*3
*4
*5
Condition
Throttle actuator control system range/
performance problem
Throttle actuator control throttle body
range/performance problem
APP sensor No.1 circuit low input
APP sensor No.1 circuit high input
APP sensor No.2 circuit low input
APP sensor No.2 circuit high input
TP sensor No.1/No.2 voltage correlation
problem
APP sensor No.1/No.2 voltage
correlation problem
Fuel system too lean at off idle
Fuel system too rich at off idle
Fuel system too lean at idle
Fuel system too rich at idle
Front HO2S signal stuck lean
Front HO2S signal stuck rich
BARO sensor circuit low input
BARO sensor circuit high input
EVAP system leak detection pump motor
circuit low
EVAP system leak detection pump motor
circuit high
EVAP system leak detection pump sense
circuit problem
EVAP system leak detection pump sense
circuit low input
EVAP system leak detection pump sense
circuit intermittent
Charging system voltage problem
Charging system voltage low
Charging system voltage high
PCM B+ voltage low
PCM internal engine off timer
performance
: California emission regulation applicable model
: MT
: C: CMDTC self-test, O: KOEO self-test, R: KOER self-test
: With ABS/DSC or MT without ABS/DSC
: AT
01-02–4
MIL
DC
Monitor item
Self-test
type*3
Memory
function
ON
1
CCM
C, R
×
ON
2
CCM
C, R
×
ON
ON
ON
ON
1
1
1
1
CCM
CCM
CCM
CCM
C, O, R
C, O, R
C, O, R
C, O, R
×
×
×
×
ON
1
CCM
C, O, R
×
ON
1
CCM
C, O, R
×
ON
ON
ON
ON
ON
ON
ON
ON
2
2
2
2
2
2
1
1
Fuel system
Fuel system
Fuel system
Fuel system
HO2S
HO2S
CCM
CCM
C, R
C, R
C, R
C, R
C
C
C, O, R
C, O, R
×
×
×
×
×
×
×
×
ON
2
CCM
C, R
×
ON
2
CCM
C, R
×
ON
2
CCM
C, R
×
ON
2
CCM
C, R
×
ON
2
CCM
C, R
×
OFF
OFF
OFF
ON
1
1
1
1
Other
Other
Other
CCM
C, R
C, R
C, R
C, O, R
×
×
×
×
ON
2
CCM
C
×
3428-1U-07F.book
5 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
Sending Intermittent Monitoring System Test Results
• The items supported by the sending intermittent monitoring system are shown below.
N/A: Not applicable
Description
02
03
←
02
04
←
02
21
31
3A
3B
05
80
83
80
80
←
←
←
←
←
HO2S (Front) lean-to-rich response time (calculated)
HO2S (Front) rich-to-lean response time (calculated)
HO2S (Front) lean-to-rich response time (calculated)
HO2S (Front) rich-to-lean response time (calculated)
Low HO2S (Rear) voltage for switch time calculation
(constant)
High HO2S (Rear) voltage for switch time calculation
(constant)
HO2S (Rear) rich-to-lean response time (calculated)
HO2S (Front) and HO2S (Rear) switching time ratio
EGR pressure variation
EVAP system leak detection pump large leak check
EVAP system leak detection pump small leak check
3C
80*1
80
0B
0C
0B
0C
0B
0C
0B
0C
←
EVAP system leak detection pump very small leak check
←
←
←
←
←
←
←
←
←
Purge flow monitor
Cylinder No.1 average misfire counts for last 10 DC
Cylinder No.1 misfire counts for last/current DC
Cylinder No.2 average misfire counts for last 10 DC
Cylinder No.2 misfire counts for last/current DC
Cylinder No.3 average misfire counts for last 10 DC
Cylinder No.3 misfire counts for last/current DC
Cylinder No.4 average misfire counts for last 10 DC
Cylinder No.4 misfire counts for last/current DC
Heat radiation ratio
Engine coolant temperature
3D
A2
A2
A3
A3
A4
A4
A5
A5
N/A
N/A
*1
2007MY
OBD
Test ID
Monitor ID
←
←
←
←
E1
E1
80
81
Related system
HO2S
Catalyst
EGR
EVAP
Misfire
Thermostat
: California emission regulation applicable model
End Of Sie
DTC DETECTION LOGIC AND CONDITIONS [LF]
id010245100300
• The detection condition of the following DTC has been changed from 2007MY.
P2004 Variable tumble shutter valve stuck open
• PCM monitors variable tumble shutter valve position using variable tumble shutter valve switch. If PCM turns
the variable tumble solenoid valve on but variable tumble shutter valve position still remain open (variable
tumble shutter valve switch off), PCM determines that variable tumble shutter valve has been stuck open.
P2006 Variable tumble shutter valve stuck closed
• PCM monitors variable tumble shutter valve position using variable tumble shutter valve switch. If variable
tumble turns variable tumble solenoid valve off but variable tumble shutter valve position still remain close
(variable tumble shutter valve position sensor on), PCM determines that variable tumble shutter valve has been
stuck closed.
P2009 Variable tumble solenoid valve circuit low input
• The PCM monitors variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid
valve off but voltage still remains low, the PCM determines that variable tumble solenoid valve circuit has a
malfunction.
P2010 Variable tumble solenoid valve circuit high input
• The PCM monitors the variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid
valve on but the voltage still remains high, the PCM determines that the variable tumble solenoid valve circuit
has a malfunction.
End Of Sie
01-02–5
Mazda MX-5
2008MY
OBD
Test ID
Monitor ID
01
80
01
81
01
82
01
83
3428-1U-07F.book
6 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
KOEO/KOER SELF-TEST [LF]
id010245100400
• The self-test function consists of the KOEO (Key On Engine Off) self-test, performed when the ignition switch is
turned to the ON position and the engine is stopped; and the KOER (Key On Engine Running) self-test,
performed when idling. If a malfunction is detected when either self-test is executed, a DTC is displayed on the
Mazda Modular Diagnostic System (M-MDS). Using the self-test function, the present malfunction or a
successful repair is readily confirmed. Refer to the self-test function table for the corresponding DTCs.
KOEO (Key ON, Engine Off) Self-test
• The KOEO self-test is a powertrain control system self-diagnosis, performed when the ignition switch is turned
to the ON position and the engine is stopped. A KOEO self-test begins when the connected Mazda Modular
Diagnostic System (M-MDS) sends an execute command to the PCM.
• As the KOEO self-test is performed, the PCM performs the inspection for set DTCs and if a malfunction is
detected the DTC is displayed on the Mazda Modular Diagnostic System (M-MDS).
KOER (Key ON, Engine Running) Self-test
• The KOER self-test is a powertrain control system self-diagnosis, performed when the ignition switch is turned
to the ON position and the engine is idling. A KOER self-test begins when the connected Mazda Modular
Diagnostic System (M-MDS) sends an execute command to the PCM.
• As the KOER self-test is performed, the PCM performs the inspection for set DTCs and if a malfunction is
detected the DTC is displayed on the Mazda Modular Diagnostic System (M-MDS).
KOEO/KOER self-test table
×: Applicable
N/A: Not applicable
DTC No.
2008MY
2007MY
B1342
←
P0011
←
P0012
←
P0016
←
P0030
←
P0031
←
P0032
←
P0037
←
P0038
←
P0069
←
P0101
←
P0102
←
P0103
←
P0107
←
P0108
←
P0111
←
P0112
←
P0113
←
P0116
←
P0117
←
P0118
←
P0122
←
P0123
←
P0125
←
P0126
←
P0128
←
P0130
←
P0131
←
P0132
←
P0133
←
P0134
←
P0137
←
P0138
←
01-02–6
Condition
PCM malfunction
CMP timing over-advanced
CMP timing over-retarded
CKP-CMP correlation
Front HO2S heater control circuit problem
Front HO2S heater circuit low input
Front HO2S heater circuit high input
Rear HO2S heater circuit low input
Rear HO2S heater circuit high input
Manifold absolute pressure/atmospheric pressure correlation
MAF sensor circuit range/performance problem
MAF sensor circuit low input
MAF sensor circuit high input
MAP sensor circuit low input
MAP sensor circuit high input
IAT sensor circuit range/performance problem
IAT sensor circuit low input
IAT sensor circuit high input
Engine coolant temperature circuit range/performance
ECT sensor circuit low input
ECT sensor circuit high input
TP sensor No.1 circuit low input
TP sensor No.1 circuit high input
Excessive time to enter closed loop fuel control
Coolant thermostat stuck open
Front HO2S circuit problem
Front HO2S circuit low input
Front HO2S circuit high input
Front HO2S circuit problem
Front HO2S no activity detected
Rear HO2S circuit low input
Rear HO2S circuit high input
Test condition
KOEO
KOER
×
N/A
N/A
×
N/A
×
N/A
N/A
×
×
×
×
×
×
×
×
×
×
N/A
N/A
N/A
N/A
×
×
×
×
×
×
×
×
N/A
N/A
×
×
×
×
N/A
N/A
×
×
×
×
×
×
×
×
N/A
N/A
N/A
N/A
N/A
N/A
×
×
×
×
×
×
N/A
N/A
N/A
×
×
×
×
×
3428-1U-07F.book
7 ページ
2007年10月3日 水曜日 午後2時16分
DTC No.
2008MY
2007MY
P0139
←
P0140
←
P0222
←
P0223
←
P0300
←
P0301
←
P0302
←
P0303
←
P0304
←
P0327
←
P0328
←
P0335
←
P0340
←
P0401
←
P0403
←
P0421
←
P0441
←
P0442
←
P0443
←
P0446
←
P0455
←
P0456*1
P0461
P0462
P0463
P0480
P0481
P0482
Condition
Rear HO2S circuit problem
Rear HO2S no activity detected
TP sensor No.2 circuit low input
TP sensor No.2 circuit high input
Random misfire detected
Cylinder No.1 misfire detected
Cylinder No.2 misfire detected
Cylinder No.3 misfire detected
Cylinder No.4 misfire detected
KS circuit low input
KS circuit high input
CKP sensor circuit problem
CMP sensor circuit problem
EGR flow insufficient detected
EGR valve (stepping motor) circuit problem
Warm up catalyst system efficiency below threshold
Evaporative emission control system incorrect purge flow
Evaporative emission control system leak detected (small leak)
Purge solenoid valve circuit problem
Change over valve (COV) (EVAP system leak detection pump) stuck close
Evaporative emission control system leak detected (gross leak)
Test condition
KOEO
KOER
N/A
N/A
N/A
×
×
×
×
×
N/A
×
N/A
×
N/A
×
N/A
×
N/A
×
×
×
×
×
N/A
N/A
N/A
N/A
N/A
×
×
×
N/A
N/A
N/A
×
N/A
×
×
×
N/A
×
N/A
×
←
Evaporative emission control system leak detected (very small leak)
N/A
×
←
←
←
←
←
←
Fuel gauge sender unit range/performance problem
Fuel gauge sender unit circuit low input
Fuel gauge sender unit circuit high input
Cooling fan relay No.1 control circuit malfunction
Cooling fan relay No.2 control circuit malfunction
Cooling fan relay No.3 control circuit malfunction
N/A
×
×
×
×
×
N/A
×
×
×
×
×
P0500*4
P0505
P0506
P0507
P050A
P050B
P0550
P0564
P0571
P0601
P0602
P0604
P0606
P0610
P0638
P0661
P0662
P0703
←
VSS circuit problem
N/A
N/A
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
Idle speed control system problem
Idle speed control system RPM lower than expected
Idle speed control system RPM higher than expected
Cold start idle air control system performance
Cold start ignition timing performance
PSP switch circuit malfunction
Cruise control switch circuit malfunction
Brake switch circuit problem
PCM memory check sum error
PCM programming error
PCM random access memory (RAM) error
PCM processor
PCM vehicle options error
Throttle actuator control circuit range/performance problem
Variable intake air solenoid valve circuit low input
Variable intake air solenoid valve circuit high input
Brake switch input circuit problem
N/A
N/A
N/A
×
×
N/A
N/A
N/A
×
×
×
×
×
N/A
×
×
N/A
×
N/A
×
×
×
N/A
N/A
N/A
×
×
×
×
×
N/A
×
×
N/A
P0704*2
←
Clutch pedal position (CPP) switch input circuit problem
N/A
N/A
*2
←
Neutral switch input circuit problem
N/A
N/A
←
Immobilizer system problem
×
N/A
P0850
P1260
P2004*5
N/A
Variable tumble shutter valve stuck open
×
×
P2006
*5
N/A
Variable tumble shutter valve stuck closed
×
×
P2009
*5
N/A
Variable tumble solenoid valve circuit low input
×
×
01-02–7
Mazda MX-5
ON-BOARD DIAGNOSTIC [LF]
3428-1U-07F.book
8 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
DTC No.
2008MY
2007MY
P2010*5
P2088
P2089
P2096
P2097
P2101
P2107
P2108
P2109
P2112
P2119
P2122
P2123
P2127
P2128
P2135
P2138
P2177
P2178
P2187
P2188
P2195
P2196
P2228
P2229
P2401
P2402
P2404
P2405
P2407
P2502
P2503
P2504
P2507
P2610
*1
*2
*3
*4
*5
N/A
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
Condition
Variable tumble solenoid valve circuit high input
Oil control valve (OCV) circuit low
Oil control valve (OCV) circuit high
Target A/F feedback system too lean
Target A/F feedback system too rich
Throttle actuator circuit range/performance
Throttle actuator control module processor error
Throttle actuator control module performance error
TP sensor minimum stop range/performance problem
Throttle actuator control system range/performance problem
Throttle actuator control throttle body range/performance problem
APP sensor No.1 circuit low input
APP sensor No.1 circuit high input
APP sensor No.2 circuit low input
APP sensor No.2 circuit high input
TP sensor No.1/No.2 voltage correlation problem
APP sensor No.1/No.2 voltage correlation problem
Fuel system too lean at off idle
Fuel system too rich at off idle
Fuel system too lean at idle
Fuel system too rich at idle
Front HO2S signal stuck lean
Front HO2S signal stuck rich
BARO sensor circuit low input
BARO sensor circuit high input
EVAP system leak detection pump motor circuit low
EVAP system leak detection pump motor circuit high
EVAP system leak detection pump sense circuit problem
EVAP system leak detection pump sense circuit low input
EVAP system leak detection pump sense circuit intermittent
Charging system voltage problem
Charging system voltage low
Charging system voltage high
PCM B+ voltage low
PCM internal engine off timer performance
: California emission regulation applicable model
: MT
: C: CMDTC self-test, O: KOEO self-test, R: KOER self-test
: With ABS/DSC or MT without ABS/DSC
: AT
End Of Sie
01-02–8
Test condition
KOEO
KOER
×
×
×
×
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
×
×
×
×
×
×
N/A
N/A
N/A
N/A
N/A
N/A
×
×
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
×
N/A
×
×
N/A
N/A
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
N/A
N/A
×
×
×
×
×
×
×
×
×
×
×
N/A
3428-1U-07F.book
9 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
PID/DATA MONITOR AND RECORD [LF]
id010245100500
• The PID/DATA monitor items are shown below.
PID/DATA monitor table (reference)
2008MY
AAT
AC_REQ
ACCS
AFR
AFR_ACT
ALTF
ALTT V
APP
APP1
APP2
ARPMDES
BARO
BOO
BPA
CATT11_D
SD
CHRGLP
COLP
2007MY
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
definition
Ambient air temperature
Refrigerant pressure switch (high, low)
A/C relay
Air/fuel ratio
Actual air/fuel ratio
Generator field coil control duty value
Generator output voltage
Accelerator pedal position
Unit/Condition
°C
APP sensor No.1
APP sensor No.2
Target engine speed
Barometric pressure
°F
On/Off
On/Off
—
—
%
V
%
%
V
%
V
RPM
Bar
V
On/Off
On/Off
Pa
Brake switch
Brake pressure applied switch
—
1AU
1I
2AD
—
2AI
2AJ
1AO, 1AP
1AO
1AP
—
psi
—
1AB, 1AF
—
←
Catalyst temperature
←
←
Generator warning light
Refrigerant pressure switch (middle)
←
Clutch pedal position
←
Shift lever position
←
←
←
←
Number of DTC detected
Actual lambda signal
V
—
←
Target lambda
—
—
Throttle control
Purge solenoid valve duty value
Cooling fan relay No.1 control signal
Cooling fan relay No.2 control signal
Cooling fan relay No.3 control signal
Fuel level
Fuel pump relay
°
%
°
%
On/Off
On/Off
On/Off
%
On/Off
—
EVAPCP
FAN1
FAN2
FAN3
FLI
FP
←
←
←
←
←
←
←
←
←
FUELPW
←
Fuel injector duration
CPP*1
*1
CPP/PNP
DTCCNT
ECT
EQ_RAT11
EQ_RAT11
_DSD
ETC_ACT
ETC_DSD
Engine coolant temperature
←
Fuel system status
GENVDSD
HTR11
HTR12
←
←
←
←
←
Target generator voltage
Front HO2S heater control
Rear HO2S heater control
IMRC*6
IMTV
N/A
←
Intake air temperature
°F
—
On/Off
ON/OFF
—
1J
On/Off
1D
Drive/Neutral
1X
—
—
°C
Throttle control desired
FUELSYS
IAT
°C
PCM
terminal
°F
—
—
2C
1M
1N
1R
—
1H
2BB, 2BC,
2BD, 2AZ
sec
OL/CL/
OL–Drive/
OL–Fault/
CL–Fault
V
On/Off
On/Off
°C
—
—
2BG
2BE
°F
V
2AH
1AT
Variable tumble solenoid valve
On/Off
2I
Variable intake air control
On/Off
2J
01-02–9
Mazda MX-5
Item
3428-1U-07F.book
10 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
Item
2008MY
definition
2007MY
INGEAR
←
Gears are engaged
IVS
KNOCKR
LDP_EVAP
CP
LDP_IDL
LDP_MON
LDP_REF
LDP_SLDV
LDP_VSL_
FV*2
LDP_VSL_
SV*2
LDP_VSLD
V*2
LOAD
LONGFT1
←
←
←
←
←
←
CTP condition
Knocking retard
EVAP system leak detection pump detect incorrect
purge flow
EVAP system leak detection pump idle current
EVAP system leak detection pump monitoring current
EVAP system leak detection pump reference current
EVAP system small leak detection value
←
Unit/Condition
PCM
terminal
1D*1,1X*1
On/Off
Idle/Off Idle
°
—*6
—
2U
A
—
A
A
A
A
—
—
—
—
EVAP system very small leak detection fail value
mA/sec
—
←
EVAP system very small leak detection safe value
mA/sec
—
←
EVAP system very small leak detection value
mA/sec
—
Engine load
Long term fuel trim
%
%
g/sec
V
psi
V
On/Off
—
—
MIL
MIL_DIS
O2S11
O2S12
PSP
←
←
←
←
←
←
←
←
←
←
←
RFCFLAG
←
PCM adaptive memory produce verification
RO2FT1
RPM
SCCS
←
←
←
Rear HO2S fuel trim
Engine speed
Cruise control switch
SEGRP
←
EGR control
—
SEGRP
DSD
SHRTFT1
SHRTFT12
SPARKADV
test
←
EGR valve position desired
%
—
←
←
←
←
Short term fuel trim (front)
Short term fuel trim (rear)
Ignition timing
Test mode
Heat radiation ratio (heat radiation when thermostat is
malfunctioning/heat radiation when thermostat is
normal) when thermostat monitoring is finished
Engine coolant temperature when thermostat
monitoring is finished
Upper limit of heat radiation ratio (heat radiation when
thermostat is malfunctioning/heat radiation when
thermostat is normal) for thermostat monitoring
execution
Upper limit of engine coolant temperature for
thermostat monitoring execution
%
%
°
On/Off
—
—
2S
—
MAF
MAP
←
N/A
TH_M
N/A
TH_M_MA
X
N/A
N/A
01-02–10
Mass air flow
Manifold absolute pressure
Malfunction indicator lamp
Travelled distance since MIL illuminated
Front HO2S
Rear HO2S
PSP switch
Pa
km
1AK
Bar
mile
A
V
Low/High
Learnt/
Not Learnt
—
RPM
V
2AG
—
—
2AD
2Q
2T
—
—
2W
1AQ
2K, 2G, 2L,
2H
—
—
°C
°F
—
—
°C
°F
3428-1U-07F.book
11 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
definition
2007MY
N/A
TH_M_MIN
N/A
←
←
←
←
←
←
←
←
TIRESIZE
TP REL
TP1
TP2
TPCT
VPWR
Unit/Condition
Lower limit of heat radiation ratio (heat radiation when
thermostat is malfunctioning/heat radiation when
thermostat is normal) for thermostat monitoring
execution
Lower limit of engine coolant temperature for
thermostat monitoring execution
Tire revolution per mile
Throttle position signal (relative value)
PCM
terminal
—
—
°C
°F
rev/mile
%
%
V
%
V
V
V
TP sensor No.1
TP sensor No.2
TP sensor voltage at CTP
Battery positive voltage
—
—
2AK
2AL
—
1BA
2O*4
VSS
←
Vehicle speed
VT ACT1
←
VT DIFF1
←
Actual valve timing
Difference between target valve timing and actual valve
timing
OCV control)
VT DUTY1
←
*6
N/A
VTC
*1
*2
*3
*4
*5
*6
KPH
Variable tumble shutter valve control
mph
°
1AM*3, 5,
1AI*3, 5
2E
°
—
%
2E
On/Off
2AE
: MT
: California emission regulation applicable model
: With ABS, DSC HU/CM
: MT without ABS/DSC
: AT without ABS/DSC
: AT
End Of Sie
SIMULATION TEST [LF]
id010245100600
• The simulation items are shown below.
Simulation item table
Item
2008 MY
ACCS
ALTF
ARPMDES
EVAPCP
FAN1
FAN2
FAN3
FP
FUELPW1
GENVDSD
HTR11
HTR12
IMRC (AT)
IMTV
INJ_1
INJ_2
INJ_3
2007 MY
←
←
←
←
←
←
←
←
←
←
←
←
N/A
←
←
←
←
×: Applicable
N/A: Not applicable
Applicable component
Unit/condition
A/C relay
Generator (field coil)
Target engine speed
Purge solenoid valve
Cooling fan relay No.1
Cooling fan relay No.2
Cooling fan relay No.3
Fuel pump relay
Fuel injector
Target generator voltage
Front HO2S heater
Rear HO2S heater
Variable tumble solenoid valve
Variable intake air solenoid valve
Fuel injector No.1
Fuel injector No.2
Fuel injector No.3
Off/On
%
RPM
%
Off/On
Off/On
Off/On
Off/On
%
V
Off/On
Off/On
Off/On
Off/On
OFF
OFF
OFF
Test condition
KOEO
KOER
×
×
N/A
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
N/A
×
×
×
×
×
×
×
×
×
N/A
×
N/A
×
N/A
×
PCM terminal
1I
2AI
—
2C
1M
1N
1R
1H
2BB, 2BC, 2BD, 2AZ
—
2BG
2BE
2I
2J
2BB
2BC
2BD
01-02–11
Mazda MX-5
Item
2008MY
3428-1U-07F.book
12 ページ
2007年10月3日 水曜日 午後2時16分
ON-BOARD DIAGNOSTIC [LF]
Item
2008 MY
INJ_4
2007 MY
←
Applicable component
SEGRP
←
test
VT DUTY1
Wt
←
Fuel injector No.4
EGR valve stepping motor
position
Test mode
←
CMP sensor
End Of Sie
01-02–12
Unit/condition
OFF
Test condition
KOEO
KOER
N/A
×
PCM terminal
2AZ
—
×
×
2K, 2G, 2L, 2H
Off/On
×
×
—
%
×
×
2E
3428-1U-07F.book
1 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
INTAKE-AIR SYSTEM [LF]
INTAKE-AIR SYSTEM OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . . . .
INTAKE-AIR SYSTEM
STRUCTURAL VIEW [LF]. . . . . . . . . . .
INTAKE-AIR SYSTEM DIAGRAM
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTAKE-AIR SYSTEM VACUUM HOSE
ROUTING DIAGRAM [LF]. . . . . . . . . . .
INTAKE MANIFOLD CONSTRUCTION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VARIABLE TUMBLE SYSTEM
FUNCTION [LF]. . . . . . . . . . . . . . . . . . .
AT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VARIABLE TUMBLE SYSTEM
STRUCTURE [LF] . . . . . . . . . . . . . . . . .
AT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
01-13–1
01-13–1
01-13–2
01-13–3
01-13–3
01-13–4
01-13–4
01-13–4
01-13–4
01-13–4
VARIABLE TUMBLE SYSTEM
OPERATION [LF] . . . . . . . . . . . . . . . . . . 01-13–5
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–5
VARIABLE TUMBLE SOLENOID VALVE
FUNCTION [LF] . . . . . . . . . . . . . . . . . . . 01-13–5
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–5
VARIABLE TUMBLE SOLENOID
VALVE CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–5
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–5
VARIABLE TUMBLE
SHUTTER VALVE ACTUATOR
FUNCTION [LF] . . . . . . . . . . . . . . . . . . . 01-13–6
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–6
VARIABLE TUMBLE
SHUTTER VALVE ACTUATOR
CONSTRUCTION/OPERATION [LF] . . . 01-13–6
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-13–6
End of Toc
INTAKE-AIR SYSTEM OUTLINE [LF]
NG: INTAKE-AIR SYSTEM
id011345100100
Features
Improved engine torque
Improved noise reduction
Improved emission gas purification
• Variable intake-air system adopted
• Resonance chamber adopted
• Variable tumble system adopted (AT)
End Of Sie
01-13–1
Mazda MX-5
01-13
3428-1U-07F.book
2 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
INTAKE-AIR SYSTEM STRUCTURAL VIEW [LF]
id011345100200
VARIABLE TUMBLE SOLENOID VALVE (AT)
VARIABLE INTAKE AIR SOLENOID VALVE
DYNAMIC CHAMBER
VARIABLE TUMBLE SHUTTER VALVE
ACTUATOR (AT)
ACCELERATOR PEDAL
INTAKE MANIFOLD
VARIABLE INTAKE
AIR SHUTTER
VALVE ACTUATOR
THROTTLE BODY
AIR CLEANER
amxuun0000006
End Of Sie
01-13–2
3428-1U-07F.book
3 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
INTAKE-AIR SYSTEM DIAGRAM [LF]
id011345102200
VARIABLE INTAKE AIR
VARIABLE INTAKE
SHUTTER VALVE ACTUATOR
AIR SHUTTER VALVE
DYNAMIC
INTAKE MANIFOLD
CHAMBER
THROTTLE
VALVE
ACTUATOR
THROTTLE BODY
CHECK VALVE
VACUUM CHAMBER
AIR CLEANER
FRESH-AIR
DUCT
VARIABLE TUMBLE
SOLENOID VALVE (AT)
VARIABLE TUMBLE
SHUTTER VALVE (AT)
: TO PCM
VARIABLE TUMBLE SHUTTER
VALVE ACTUATOR (AT)
amxuun0000006
End Of Sie
INTAKE-AIR SYSTEM VACUUM HOSE ROUTING DIAGRAM [LF]
VENTILATION HOSE
id011345100400
TO DYNAMIC CHAMBER
PCV VALVE
VARIABLE TUMBLE SOLENOID VALVE (AT)
VARIABLE INTAKE AIR SOLENOID VALVE
VARIABLE TUMBLE SHUTTER VALVE
ACTUATOR (AT)
VARIABLE INTAKE
AIR SHUTTER
VALVE ACTUATOR
PURGE SOLENOID VALVE
amxuuw0000076
End Of Sie
01-13–3
Mazda MX-5
VARIABLE INTAKE AIR
SOLENOID VALVE
3428-1U-07F.book
4 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
INTAKE MANIFOLD CONSTRUCTION [LF]
NG: INTAKE MANIFOLD
id011345100800
• The intake manifold mainly consists of the variable intake air shutter valve actuator and variable tumble shutter
valve actuator (AT).
• Made of hard plastic for weight reduction.
INTAKE MANIFOLD
DYNAMIC CHAMBER
VARIABLE TUMBLE
SHUTTER VALVE
ACTUATOR (AT)
VARIABLE INTAKE AIR
SHUTTER VALVE
ACTUATOR
amxuun0000008
End Of Sie
VARIABLE TUMBLE SYSTEM FUNCTION [LF]
NG: VARIABLE TUMBLE SYSTEM
id011345147300
AT
• The variable tumble system functions to lower emissions at cold-engine start.
• At cold-engine start, the variable tumble system increases intake airflow speed by closing the shutter valve and
narrowing the intake passage. As a result, the air-fuel mixture quality from the injector is improved. Additionally,
the creation of a powerful air tumble in the combustion chamber promotes the atomization of the air-fuel
mixture. Due to this, exhaust emission efficiency is improved.
• For the variable tumble control, refer to CONTROL SYSTEM, Variable Tumble Control. (See 01-40-8
VARIABLE TUMBLE CONTROL OUTLINE [LF].) (See 01-40-8 VARIABLE TUMBLE CONTROL BLOCK
DIAGRAM [LF].) (See 01-40-9 VARIABLE TUMBLE CONTROL OPERATION [LF].)
End Of Sie
VARIABLE TUMBLE SYSTEM STRUCTURE [LF]
id011345147500
AT
• Mainly consists of the variable tumble solenoid valve, variable tumble shutter valve, variable tumble shutter
valve actuator, and vacuum chamber.
VARIABLE TUMBLE
SOLENOID VALVE
VARIABLE TUMBLE
SHUTTER VALVE
VARIABLE TUMBLE SHUTTER
VALVE ACTUATOR
: TO PCM
amxuun0000006
End Of Sie
01-13–4
3428-1U-07F.book
5 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
VARIABLE TUMBLE SYSTEM OPERATION [LF]
id011345147400
AT
Engine speed less than 3,750 rpm and engine coolant temperature less than 63 °C {145 °F} (variable tumble
shutter valve is closed)
• Intake manifold vacuum is applied to the variable
tumble shutter valve actuator by the operation of
the variable tumble solenoid valve, closing the
variable tumble shutter valve. At this time, the
VARIABLE TUMBLE SHUTTER VALVE CLOSED
intake passage is narrower than normal,
increasing intake airflow speed and also creating
a powerful air tumble in the combustion chamber.
End Of Sie
NG: VARIABLE TUMBLE SOLENOID VALVE
AIR TUMBLE
amxuun0000006
VARIABLE TUMBLE SOLENOID VALVE FUNCTION [LF]
id011345148200
AT
• Switches the intake manifold vacuum passage between the dynamic chamber and the variable tumble shutter
actuator.
End Of Sie
VARIABLE TUMBLE SOLENOID VALVE CONSTRUCTION/OPERATION [LF]
id011345148100
AT
Construction
• Mainly composed of the solenoid coil, spring, and plunger.
Operation
Energized
• The solenoid coil magnetizes, pulling the plunger. The passage between A and B ports opens due to the
plunger being pulled, and intake manifold vacuum is applied to the actuator.
Not energized
• The intake manifold vacuum passage is blocked, and the passage between ports B and C opens,
depressurizing the actuator.
ENERGIZED
NOT ENERGIZED
SOLENOID COIL
PORT B
PORT A
PORT B
PORT C
PLUNGER
SPRING
amxuun0000006
End Of Sie
NG: VARIABLE TUMBLE SHUTTER VALVE ACTUATOR
01-13–5
Mazda MX-5
COMBUSTION
CHAMBER
3428-1U-07F.book
6 ページ
2007年10月3日 水曜日 午後2時16分
INTAKE-AIR SYSTEM [LF]
VARIABLE TUMBLE SHUTTER VALVE ACTUATOR FUNCTION [LF]
id011345148700
AT
• Opens and closes the variable tumble shutter valve.
End Of Sie
VARIABLE TUMBLE SHUTTER VALVE ACTUATOR CONSTRUCTION/OPERATION [LF]
id011345151500
AT
Construction
• Mainly consists of the body, rod and diaphragm chamber spring.
Operation
• Normally, the spring force presses against the rod, keeping the variable tumble shutter valve open. When
vacuum is applied to the diaphragm chamber from the dynamic chamber, the rod is pulled, closing the variable
tumble shutter valve.
VARIABLE TUMBLE SHUTTER VALVE OPEN
DIAPHRAGM CHAMBER
VARIABLE TUMBLE SHUTTER VALVE CLOSED
VARIABLE TUMBLE
SHUTTER VALVE
ROD
SPRING
INTAKE MANIFOLD VACUUM
amxuun0000007
End Of Sie
01-13–6
3428-1U-07F.book
1 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-40–1
Features . . . . . . . . . . . . . . . . . . . . . . . . 01-40–1
Specification. . . . . . . . . . . . . . . . . . . . . 01-40–1
ENGINE CONTROL SYSTEM
STRUCTURAL VIEW [LF]. . . . . . . . . . . 01-40–2
ENGINE CONTROL SYSTEM DIAGRAM
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-40–3
ENGINE CONTROL SYSTEM WIRING
DIAGRAM [LF] . . . . . . . . . . . . . . . . . . . 01-40–4
ENGINE CONTROL SYSTEM BLOCK
DIAGRAM [LF] . . . . . . . . . . . . . . . . . . . 01-40–6
ENGINE CONTROL SYSTEM
RELATION CHART [LF] . . . . . . . . . . . . 01-40–7
VARIABLE TUMBLE CONTROL
OUTLINE [LF]. . . . . . . . . . . . . . . . . . . . . 01-40–8
VARIABLE TUMBLE CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01-40–8
VARIABLE TUMBLE CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . . 01-40–9
Operation conditions . . . . . . . . . . . . . . . 01-40–9
Inhibition conditions. . . . . . . . . . . . . . . . 01-40–9
PCM FUNCTION [LF] . . . . . . . . . . . . . . . . 01-40–9
Function List . . . . . . . . . . . . . . . . . . . . . 01-40–9
VARIABLE TUMBLE SHUTTER VALVE
SWITCH FUNCTION [LF]. . . . . . . . . . . . 01-40–9
VARIABLE TUMBLE SHUTTER VALVE
SWITCH CONSTRUCTION/OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-40–10
End of Toc
ENGINE CONTROL SYSTEM OUTLINE [LF]
NG: ENGINE CONTROL SYSTEM
id014045100100
Features
Improved emission gas purification
• Variable tumble control adopted (AT)
Specification
Item
Variable tumble shutter valve switch (AT)
Specification
ON/OFF
End Of Sie
01-40–1
Mazda MX-5
01-40
3428-1U-07F.book
2 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM STRUCTURAL VIEW [LF]
id014045100200
BRAKE SWITCH
ECT SENSOR
CPP SWITCH (MT)
VARIABLE TUMBLE
SHUTTER VALVE
SWITCH (AT)
FRONT
HO2S
REAR
HO2S
EGR VALVE
APP SENSOR
OCV
IGNITION COIL
CMP SENSOR
GENERATOR
FUEL INJECTOR
BATTERY
VARIABLE INTAKE AIR
SOLENOID VALVE
VARIABLE TUMBLE
SOLENOID VALVE (AT)
KS
MAP SENSOR
PSP SWITCH
PURGE
SOLENOID VALVE
CKP SENSOR
TP SENSOR
THROTTLE VALVE ACTUATOR
PCM
BARO SENSOR (BUILT INTO PCM)
MT
MAF/IAT SENSOR
6MT
AT
NEUTRAL
SWITCH
5MT
VSS (WITHOUT ABS)
TR SWITCH
amxuun0000007
End Of Sie
01-40–2
3428-1U-07F.book
3 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM DIAGRAM [LF]
id014045100300
PURGE SOLENOID
VALVE
APP SENSOR
PCM
EVAP SYSTEM LEAK DETECTION PUMP
CMP
SENSOR
EGR
VALVE
(BARO
SENSOR)
TP
SENSOR
OCV
FUEL
INJECTOR
MAP
SENSOR
THROTTLE
VALVE
ACTUATOR
MAF/IAT SENSOR
FRONT HO2S
Mazda MX-5
ECT
FUEL PUMP UNIT SENSOR
KS
CKP
SENSOR
VARIABLE TUMBLE
SOLENOID VALVE (AT)
REAR HO2S
VARIABLE TUMBLE
SHUTTER VALVE
SWITCH (AT)
VARIABLE INTAKE
AIR SOLENOID
VALVE
: TO PCM
amxuun0000017
End Of Sie
01-40–3
3428-1U-07F.book
4 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM WIRING DIAGRAM [LF]
id014045100400
COOLING FAN RELAY NO.1
1BE
PCM
(BUILT INTO BARO
1AW
SENSOR)
1M
COOLING FAN RELAY NO.2
1N
1BA
COOLING FAN RELAY NO.3
c
1R
1AY
1AZ
REAR HO2S HEATER
2BE
2X
FRONT HO2S HEATER
2BH
2BG
REAR HO2S
2Q
A/C RELAY
FRONT HO2S
2AD
1I
2Z
2V
FUEL INJECTOR NO.1
2BB
KS
2U
FUEL INJECTOR NO.2
2BC
FUEL INJECTOR NO.3
2BD
MAP SENSOR
2AG
FUEL INJECTOR NO.4
2AZ
2AV
2AU
FUEL PUMP RELAY
1H
b
ECT SENSOR
2AH
2AY
CKP SENSOR
1Q
2W
MAIN RELAY
2AB
2AQ
CMP SENSOR
AT
c
TR SWITCH
STARTER RELAY
2S
1B
2P
2AM
MT
1AJ
STARTER
INTERLOCK
SWITCH
M
STARTER
IGNITION
SWITCH
1AV
DRIVE-BY-WIRE RELAY
APP SENSOR
1AS
1AX
1AP
1BF
a
1AO
BATTERY
1AL
a
b
b
amxuun0000007
01-40–4
3428-1U-07F.book
5 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
a
b
b
1AR
IAT SENSOR
1AT
PCM
(BUILT INTO BARO
SENSOR)
GENERATOR TERMINAL D
MAF SENSOR
2AI
1AK
PURGE SOLENOID VALVE
2C
1P
EGR VALVE
TP SENSOR
2K
2AK
2G
2AO
2L
Mazda MX-5
2AL
2H
2AP
AT
1AM
CAN
RELATED
MODULE
VARIABLE TUMBLE SOLENOID VALVE
2I
1AI
VARIABLE INTAKE AIR SOLENOID VALVE
2J
GENERATOR
TERMINAL P
2AJ
EVAP SYSTEM LEAK DETECTION PUMP
1V
CRUISE CONTROL SWITCH
1AQ
1U
TO TR SWITCH
AT
MT
M
OCV
1X
2E
NEUTRAL SWITCH
1X
CPP SWITCH
THROTTLE VALVE ACTUATOR
2B
1D
c
2A
VSS
2O
MT WITHOUT ABS/DSC
2BA
IGNITION COIL NO.1
2AW
IGNITION COIL NO.2
2AX
IGNITION COIL NO.3
2AT
IGNITION COIL NO.4
REFRIGERANT PRESSURE SWITCH
HIGH, LOW
A/C AMPLIFIER
1AU
MIDDLE
1J
BRAKE SWITCH
1AB
1AF
2T
PSP SWITCH
1BD
1BH
1BB
AT
VARIABLE TUMBLE SHUTTER VALVE SWITCH
2AE
amxuun0000007
End Of Sie
01-40–5
3428-1U-07F.book
6 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM BLOCK DIAGRAM [LF]
id014045100500
PCM
MAF SENSOR
THROTTLE VALVE ACTUATOR
IAT SENSOR
TP SENSOR NO.1, NO.2
VARIABLE INTAKE AIR
SOLENOID VALVE
APP SENSOR NO.1, NO.2
VARIABLE TUMBLE
SORENOID VALVE*2
MAP SENSOR
OCV
CMP SENSOR
CKP SENSOR
MAIN RELAY
CONTROL
FUEL INJECTOR
ECT SENSOR
DRIVE-BY-WIRE
CONTROL
FUEL PUMP RELAY
KS
VARIABLE INTAKE AIR
CONTROL
IGNITION COIL
FRONT HO2
VARIABLE TUMBLE
CONTROL*2
REAR HO2S
VARIABLE VALVE TIMING
CONTROL
BARO SENSOR
FUEL INJECTION CONTROL
NEUTRAL SWITCH*1
FUEL PUMP CONTROL
CPP SWITCH*1
ESA CONTROL
BRAKE SWITCH NO.1, NO.2
REFRIGERANT PRESSURE SWITCH
(HIGH, LOW)
PURGE SORENOID VALVE
EGR VALVE
FRONT HO2S HEATER
REAR HO2S HEATER
A/C RELAY
EVAPORATIVE PURGE
CONTROL
COOLING FAN RELAY NO.1
COOLING FAN RELAY NO.2
EGR CONTROL
REFRIGERANT PRESSURE SWITCH
(MIDDLE)
HO2S HEATER CONTROL
COOLING FAN RELAY NO.3
BATTERY
A/C CUT-OFF CONTROL
GENERATOR (TERMINAL
D: FIELD COIL)
GENERATOR (TERMINAL P:
GENERATION VOLTAGE)
ELECTRICAL FAN CONTROL
STARTER RELAY
INSTRUMENT CLUSTER
STARTER CUT-OFF CONTROL
INSTRUMENT CLUSTER
(IMMOBILIZER RELATED
INFORMATION)
GENERATOR CONTROL
CRUISE CONTROL SWITCH
MAIN RELAY
TCM
CAN
INSTRUMENT CLUSTER
ABS HU/CM OR DSC HU/CM
VIECLE SPEED SIGNAL
TR SWITCH*2
IGNITION SWITCH
PSP SWITCH
DSC HU/CM
ABS HU/CM
*1:
A/C AMPLIFIER
MT
: AT
*2
TCM*2
amxuun0000009
End Of Sie
01-40–6
3428-1U-07F.book
7 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
ENGINE CONTROL SYSTEM RELATION CHART [LF]
id014045100600
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
CAN
X
X
X
X
X
X
GENERATOR CONTROL
STARTER CUT-OFF CONTROL
ELECTRICAL FAN CONTROL
A/C CUT-OFF CONTROL
HO2S HEATER CONTROL
EGR CONTROL
EVAPORATIVE PURGE CONTROL
ESA CONTROL
FUEL PUMP CONTROL
FUEL INJECTION CONTROL
VARIABLE VALVE TIMING CONTROL
VARIABLE TUMBLE CONTROL (AT)
VARIABLE INTAKE AIR CONTROL
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Mazda MX-5
Input device
Neutral switch (MT)
CPP switch (MT)
ECT sensor
IAT sensor
CKP sensor
CMP sensor
TP sensor No.1, No.2
APP sensor No.1, No.2
MAF sensor
Front HO2S
Rear HO2S
MAP sensor
BARO sensor (Built into PCM)
KS
Ignition switch
TR switch (AT)
Brake switch No.1, No.2
A/C amplifier
Refrigerant pressure switch (high,
low)
Refrigerant pressure switch
(middle)
Cruise control switch
PSP switch
Vehicle speed signal
Instrument cluster (Immobilizer
related information)
Instrument cluster
DSC HU/CM
ABS HU/CM or DSC HU/CM
Generator (Terminal P: stator coil)
Battery
TCM (AT)
Output device
Main relay
Fuel pump relay
A/C relay
Cooling fan relay No.1
Cooling fan relay No.2
Cooling fan relay No.3
DRIVE-BY-WIRE CONTROL
Item
MAIN RELAY CONTROL
X: Applied
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
01-40–7
3428-1U-07F.book
8 ページ
2007年10月3日 水曜日 午後2時16分
Starter relay
Purge solenoid valve
EGR valve
Variable intake air solenoid valve
Variable tumble solenoid valve (AT)
Throttle valve actuator
Front HO2S heater
Rear HO2S heater
OCV
TCM (AT)
Fuel injector
Ignition coil
Generator (Terminal D: field coil)
Instrument cluster
ABS HU/CM or DSC HU/CM
Keyless control module
CAN
GENERATOR CONTROL
STARTER CUT-OFF CONTROL
ELECTRICAL FAN CONTROL
A/C CUT-OFF CONTROL
HO2S HEATER CONTROL
EGR CONTROL
EVAPORATIVE PURGE CONTROL
ESA CONTROL
FUEL PUMP CONTROL
FUEL INJECTION CONTROL
VARIABLE VALVE TIMING CONTROL
VARIABLE TUMBLE CONTROL (AT)
VARIABLE INTAKE AIR CONTROL
DRIVE-BY-WIRE CONTROL
Item
MAIN RELAY CONTROL
CONTROL SYSTEM [LF]
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
End Of Sie
VARIABLE TUMBLE CONTROL OUTLINE [LF]
id014045176600
• At cold engine start, the following occur due to the closing of the variable tumble shutter valve for improved cold
engine exhaust emission performance.
— Improved intake airflow speed near injectors
— Strong air tumble occurs in the combustion changer, promoting vaporization mixture of intake air and fuel
End Of Sie
VARIABLE TUMBLE CONTROL BLOCK DIAGRAM [LF]
id014045176400
TP SENSOR No.1, No.2
CKP SENSOR
PCM
VARIABLE TUMBLE
SOLENOID VALVE
ECT SENSOR
amxuun0000007
End Of Sie
01-40–8
3428-1U-07F.book
9 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
VARIABLE TUMBLE CONTROL OPERATION [LF]
id014045176500
Operation conditions
• When all of the following conditions are met, the PCM energizes the coil of variable tumble solenoid valve. As a
result, negative pressure is introduced to the diaphragm chamber of the variable tumble shutter valve actuator,
pulling the actuator rod and closing the variable tumble shutter valve.
— Engine speed less than 3,750 rpm
— Engine coolant temperature less than 63 °C {145 °F}
— Throttle valve opening angle is at the specified value or less (changes according to engine speed)
Inhibition conditions
• When a DTC for the ECT sensor or TP sensor has been stored, the variable tumble control is inhibited and the
variable tumble shutter valve is constantly open.
End Of Sie
PCM FUNCTION [LF]
NG: PCM
id014045105300
Function
Main relay control
Drive-by-wire control
Drive-by-wire relay control
Variable intake air control
Variable tumble control (AT)
Variable valve timing control
Fuel injection control
Fuel pump control
ESA control
Evaporative purge control
EGR control
HO2S heater control
A/C cut-off control
Electrical fan control
Starter cut-off control
Generator control
CAN
Description
When the ignition switch is turned to the ON position, the main relay turns on.
The drive-by-wire control calculates the optimum target throttle valve opening angle at all
ranges of engine speeds and controls the throttle valve actuator.
Supplies power to the drive-by-wire control.
Switches energization of the variable shutter valve actuator according to engine speed to
enhance the inertia charging effect.
At cold engine start, the following effects occur due to the closing of the variable tumble control
for improved cold engine emission performance.
• Improved intake airflow speed near injectors
• Strong air tumble occurs in the combustion changer, promoting vaporization mixture of
intake air and fuel
Changes the intake valve timing according to engine operation conditions to improve engine
output, fuel economy and exhaust emission performance.
Performs optimum fuel injection according to engine operation conditions.
Performs energization of the fuel pump relay only when the engine is running (operates fuel
pump) to improve stability and durability.
Controls ignition to optimum timing according to engine operation conditions.
An appropriate amount of evaporative gas is fed into the dynamic chamber by the driving of the
purge solenoid valve according to the engine operation conditions to ensure driveability and
prevent release of fuel vapor gas into the atmosphere.
Adjusts the EGR to the optimum opening angle according to engine operation conditions.
Based on the control of the front and rear HO2S heater, a stabilized oxygen concentration is
detected even at low exhaust gas temperature and feedback control of fuel injection even
during cold engine start is made possible for improved cold temperature emission performance.
The current application (energize/non-energize) to the A/C relay (magnetic clutch) is controlled
according to the engine operation conditions to prevent deterioration of engine performance,
damage to the engine, and deterioration of the A/C function.
Through cooling of the radiator and condenser by operation of the cooling fan according to
vehicle conditions, engine reliability and cooling performance have been improved.
Theft deterrence has been improved by controlling energization to the starter relay according to
an engine stop request signal from the immobilizer system.
Generator output is optimized according to the engine operation and electrical load conditions,
ensuring idling stability and anti-load performance.
Used for communication with the EHPAS control module, ABS HU/CM, instrument cluster and
DLC-2.
End Of Sie
VARIABLE TUMBLE SHUTTER VALVE SWITCH FUNCTION [LF]
NG: VARIABLE TUMBLE SHUTTER VALVE SWITCH
id014045185700
• The variable tumble shutter valve switch detects whether the variable tumble shutter valve is open or closed.
End Of Sie
01-40–9
Mazda MX-5
Function List
• The control descriptions are as shown below.
3428-1U-07F.book
10 ページ
2007年10月3日 水曜日 午後2時16分
CONTROL SYSTEM [LF]
VARIABLE TUMBLE SHUTTER VALVE SWITCH CONSTRUCTION/OPERATION [LF]
id014045990500
• The variable tumble shutter valve switch is installed in intake manifold.
• The characteristics of the variable tumble shutter
valve switch are adjusted before shipment.
Therefore, do not remove it from the intake
manifold.
VARIABLE TUMBLE
SHUTTER VALVE SWITCH
amxuun0000007
End Of Sie
OUTPUT VOLTAGE(V)
• The output voltage characteristic of the variable
tumble shutter valve switch is as shown in the
figure.
B+
OFF
LESS THAN
0.5
ON
CLOSED
OPEN
VARIABLE TUMBLE SHUTTER VALVE CONDITION
amxuun0000017
01-40–10

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