R34 GTR MFD display - Skyline Owners Club

Modify R34 GTR MFD display for video input
This document will explain how to modify an R34 GTR MFD display so that it
can display an external NTSC video signal. This modification is only for MFD with a ‘TV’button.
Or you can just buy the plug and play lead from Clarion Part NO. 855-5430-00
Pin funtions to ecu
white block
1 2 3 4 5 * * 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
brown block
25 26 27 28 29 * * 30 31 32 33 34 35
36 37 38 39 40 41 42 43 44 45 46 47 48
1 BATT (12V regular power source)
2 BATT (12V regular power source)
3 ACC power source
4 TV- (ground of seal)
5 TV-SYNC
6 SCI sealed ground
7 VP
8 HP
9 RGB- (ground of seal)* 2
10 RGB-SYNC* 2
11 R*2
12 IGN signal
13 GND
14 GND
15 TV+
16 VTR- (ground of seal) * 1
17 VTR+* 1
18 N.C. (NO CONNECTION)
19 DISP-NAVI
20 NAVI-DISP
21 YS
22 G* 2
23 B* 2
24 OP NAVI Presence
25 Approximately G sensor
26 Side G sensor
27 Front torque sensor GND
28 Position of a vessel's helm se
29 Position of a vessel's helm se
30 Speed sensor
31 Water temperature sensor
32 Oil temperature sensor
33 Boost sensor (from 3 connected meters)
34 Light/write switch ( ACC )
35 Throttle opening signal
36 Sensor GND (inside MFD N.C.)
37 Sensor GND (inside MFD N.C.)
38 Front torque ( from 3 connected meters)
39 Position of a vessel's helm se
40 Yaw rate
41 Sensor GND (inside MFD N.C.)
42 Sensor GND (inside MFD N.C.)
43 STOP lamp switch
44 The hydraulic sensor
45 Exhaust warm Sensor
46 Inhalation warm sensor
47 Injector injection signal
48Tachometer Drive signal
Stage 1 – Fit socket
The first stage is to fit an RCA socket as shown below. This can be purchased
from any electronics store as a part.
The I used was threaded so that I was able to use nuts on either side to lock
it in place. This saved any soldering and allowed me to add and remove
Whilst fitting. The one pictured is a solder in unit. Either is OK.
Stage 2 - Solder cable onto socket and board
Once you have fitted the socket to the casing, you must attach some coaxial
cable to the inner and outer connectors of the socket. The other end of the
cable must be attached as shown below.
Outer of the cable to ground, inner of cable to NTSC in
Stage 3 - Disable Japanese display message
Once you have completed stage 2, your display should now be showing the
NTSC signal, however the MFD is unaware of the signal and so displays a
message in Japanese essentially complaining of no signal. Soldering between
the link shown below disables this message, allowing you to display your
video cleanly.
MFD functions
The MFD will not allow you to make changes while road speed is above about 20km/hr, but you
can do so once speed drops below about 5km/hr.
This mode allows you to see the values for all available sensors.
GTR MFD’s show;
• boost,
• throttle,
• injector duty cycle,
• oil temperature
• water temperature,
Vspec and UK cars MFD’s show;
• boost,
• throttle,
• injector duty cycle,
• oil temperature
• water temperature
• exhaust temperature
• intercooler temperature.
Nismo offer an upgrade (MFD 2) which offers a higher max boost reading, some additional
gauges, a longer memory (with downloadable data via RS232), and lap timer.
• The white line on the bar graph during mode 1 is a peak hold that will show the highest value
achieved (reset this by pushing the joystick button in).
• The oil and water temperature values will only register ---C until the temp is up to 70C, then they
show current temp.
DISP
takes you into a menu to set brightness, auto-dimming, gauge peak tracking, and to turn the
display off.
RETURN
has many similar functions to mode button, but only toggles 2 modes
MENU
takes you to the options available for that mode
MODE
cycles you through the available modes (multiple sensors, dual virtual gauges, single gauge with
memory)
Mode 1 - Multiple sensors
Pressing the MENU button when in mode 1 allows you to see the option screen again, with only
the red zone and rev light options available. Use the joystick to navigate left or right to the RED
ZONE option and press the joystick again to bring up the red zone screen. This lets you set
warning points for each monitored sensor.
To set the warning points, use the joystick to navigate up and down the sensors (the current
selected one is highlighted in yellow as on the screen shot), then push the joystick left or right to
change the levels to higher or lower values. Once finished, use the joystick to highlight the END
button and push the joystick again. This setting only has an effect when you exceed the set point
for any sensor as once exceeded the
screen will switch back to Mode 1 from any other screen, and highlight which sensor went over
the limit.
Mode 2 - Dual virtual gauges
This mode lets you monitor any 2 gauges simultaneously (1 is permanently stored in RAM, the
other 3 are use selectable). If you disconnect the battery or pull the fuse, you will find only the
default pair available.
While in this mode, pushing menu will take you to the options available (gauge selection, and
shift light setting).
To change gauges seen, navigate left or right to gauge selection with the joystick, then select it
by pushing the joystick button in.
From the screen you can use the joystick to navigate to a preferred pair of gauges.
If you have reset your MFD (via diagnostics or disconnected battery) twin 2 to 4 will be blank and
programmable.
To programme you own combination of gauges, use the joystick to navigate to the button on the
lower left of the screen and click the joystick
This takes you to another screen that lets you select the gauges to monitor, which side of the pair
they are on, and what twin number they are.
Use the joystick to scroll to the pair to edit (it is then highlighted with a yellow border as shown),
then click the joystick to enter edit mode.
The screen changes to show the available gauges, and a green block appears in whichever side
has been chosen (left or right). Select the left or right side with the joystick first, and click to edit.
Next select the gauge for that side with the joystick, and click to enter. Repeat this for the other
side, and other twin pairings.
Mode 3 - Gauge plus memory
This mode lets you see 1 gauge and the last 30 secs of data from that sensor, with a peak hold
function and peak value displayed in the blue segment (this does not apply to the throttle position
sensor shown)
Pushing menu while in mode 3 lets you navigate to the gauge select screen, which lets you
nominate which single gauge, should be displayed.
Display button
Pushing the display button lets you change some of the options
Use the joystick to navigate to the option desired, and then push the button in to toggle the
options.
• Auto-dimming means the screen brightness changes when your headlights are on.
• MFD screen when toggled turns the whole unit off (for optimum night vision?)
• Gauge tail when toggled on, shows a green “tail” behind the red gauge pointer.
• Screen brightness lets you increase or decrease the screen brightness
Shift up option
Using the joystick button, you can increase or decrease the revs set point that the MFD shift light
LED flashes at.
Hidden options
The following were all found on the net so apologies for not referencing the appropriate people.
Calibration of throttle position sensor 1) Turn the key to the "OFF" position 2) Press and hold
"RETURN" and "MODE" switches on the MFD at the same time. 3) Turn the key to the "ON"
position while still holding down the "RETURN" and "MODE" switches 4) When the opening
screen with the"GT-R logo" appears, release the "RETURN" and "MODE" switches, and click the
joystick 5 times within the next 3 seconds. 5) Set the throttle gauge calibration on screen as
below.
Diagnostic mode
1) Turn the key to the "OFF" position
2) Push and hold the joystick
3) Turn the key to the "ON" position while still holding down the joystick
4) Release the joystick at least 1 second after the "GT-R logo" appears.
5) Click the joystick 5 times within the next 3 seconds.
This will show which sensors are functioning and have readings.
How to for R34 GTT
ECU pinouts for R34 GTT
ECU pinouts for all R32’s and R33’s
101 102 103 104 105 106 107 108
1 2 3 4 5 6 7 8 9 10
21 22 23 24 25 26 27 28 29 30 41 42 43 44 45 46 47 48 49 50
109 110 111 112 113 114 115 116 11 12 13 14 15 16 17 18 19 20
31 32 33 34 35 36 37 38 39 40 51 52 53 54 55 56 57 58 59 60
Terminal
Number
1
Ignition signal (power transistor) Cyl. No. 1
2
Ignition signal (power transistor) Cyl. No. 5
12
Ignition signal (power transistor) Cyl. No. 2
3
Ignition signal (power transistor) Cyl. No. 3
13
Ignition signal (power transistor) Cyl. No. 4
4
AAC Valve
14
---
Description
Terminal
Description
Number
11
Ignition signal (power transistor) Cyl. No. 6
5
--
15
6
Sub electrical fan relay (engine temperature switch)
16
7
Tachometer speed signal
17
8
--
ECCS relay
--
18
Fuel pump relay
9
Air conditioner relay (air conditioner cut signal)
19
Power steering oil pressure switch
10
Ground (ignition signal system)
20
Ground (ignition signal system)
21 (RX)
Receive (control unit data reception)
22 (TX)
Transmit (data sent from control unit)
32
23
Detonation sensor 1 (cyl 1 to 3)
33
24
Detonation sensor 2 (cyl 4 to 6)
34
Air flow meter ground
25
Wastegate valve control solenoid valve
35
Air flow meter intake air quantity signal (front)
26
Air flow meter ground
36
Intake air temperature sensor
27
Air flow meter intake air quantity signal (rear)
37
28
Engine temperature sensor
38
29
Exhaust gas sensor (front)
39
--
30
Sensor ground (throttle sensor, engine temperature
sensor)
40
--
41
Crank angle sensor (120 degree signal)
51
Crank angle sensor (120 degree signal)
42
Crank angle sensor (1 degree signal)
52
Crank angle sensor (1 degree signal)
43
Ignition switch START signal
53
Vehicle speed sensor
44
Neutral switch
54
Throttle valve switch (idle connection point)
45 (IGN)
Ignition switch (IGN)
55
Exhaust gas sensor (Rear)
46
Air conditioner switch
56
Throttle sensor output signal
Check (diagnosis activation)
57
47 (CHK)
31 (CLK) Clock (synchronization signal)
Monitor and check lamp (red)
--
-Throttle opening output
--
48
Throttle sensor power supply supply
58
Battery power supply
49
Control unit power supply
59
Control unit power supply
50
Ground (control unit)
101
60 ( - )
Injector No. 1
109
--
102
110
103
Injector No. 3
104
Fuel pump terminal voltage control ouput (FPCM) 1
112
105
Injector No. 2
113
106
Fuel pump terminal voltage control output (FPCM) 2
114
107
Injector ground
115
108
Injector ground
Ground (control unit)
Injector power supply (counter electromotive
reflex circuit)
Injector No. 5
--
111
116
Injector No. 6
-Injectore No. 4
-Injector ground
MFD pin funtions
white block
1 2 3 4 5 * * 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
brown block
25 26 27 28 29 * * 30 31 32 33 34 35
36 37 38 39 40 41 42 43 44 45 46 47 48
1 BATT (12V regular power source)
2 BATT (12V regular power source)
3 ACC power source
4 TV- (ground of seal)
5 TV-SYNC
6 SCI sealed ground
7 VP
8 HP
9 RGB- (ground of seal)* 2
10 RGB-SYNC* 2
11 R*2
12 IGN signal
13 GND
14 GND
15 TV+
16 VTR- (ground of seal) * 1
17 VTR+* 1
18 N.C. (NO CONNECTION)
19 DISP-NAVI
20 NAVI-DISP
21 YS
22 G* 2
23 B* 2
24 OP NAVI Presence
25 Approximately G sensor
26 Side G sensor
27 Front torque sensor GND
28 Position of a vessel's helm se
29 Position of a vessel's helm se
30 Speed sensor
31 Water temperature sensor
32 Oil temperature sensor
33 Boost sensor (from 3 connected meters)
34 Light/write switch ( ACC )
35 Throttle opening signal
36 Sensor GND (inside MFD N.C.)
37 Sensor GND (inside MFD N.C.)
38 Front torque ( from 3 connected meters)
39 Position of a vessel's helm se
40 Yaw rate
41 Sensor GND (inside MFD N.C.)
42 Sensor GND (inside MFD N.C.)
43 STOP lamp switch
44 The hydraulic sensor
45 Exhaust warm Sensor
46 Inhalation warm sensor
47 Injector injection signal
48Tachometer Drive signa