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 brown block 1 2 3 4 5 * * 6 7 8 9 10 11 25 26 27 28 29 * * 30 31 32 33 34 35 12 13 14 15 16 17 18 19 20 21 22 23 24 36 37 38 39 40 41 42 43 44 45 46 47 48 1 BATT (12V regular power source) 25 Approximately G sensor 2 BATT (12V regular power source) 26 Side G sensor 3 ACC power source 27 Front torque sensor GND 4 TV- (ground of seal) 28 Position of a vessel's helm se 5 TV-SYNC 29 Position of a vessel's helm se 6 SCI sealed ground 30 Speed sensor 7 VP 31 Water temperature sensor 8 HP 32 Oil temperature sensor 9 RGB- (ground of seal)* 2 33 Boost sensor (from 3 connected meters) 10 RGB-SYNC* 2 34 Light/write switch ( ACC ) 11 R*2 35 Throttle opening signal 12 IGN signal 36 Sensor GND (inside MFD N.C.) 13 GND 37 Sensor GND (inside MFD N.C.) 14 GND 38 Front torque ( from 3 connected meters) 15 TV+ 39 Position of a vessel's helm se 16 VTR- (ground of seal) * 1 40 Yaw rate 17 VTR+* 1 41 Sensor GND (inside MFD N.C.) 18 N.C. (NO CONNECTION) 42 Sensor GND (inside MFD N.C.) 19 DISP-NAVI 43 STOP lamp switch 20 NAVI-DISP 44 The hydraulic sensor 21 YS 45 Exhaust warm Sensor 22 G* 2 46 Inhalation warm sensor 23 B* 2 47 Injector injection signal 24 OP NAVI Presence 48Tachometer Drive signal

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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.

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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.

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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)

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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.

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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.

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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.

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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.

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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.

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How to for R34 GTT

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ECU pinouts for R34 GTT

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ECU pinouts for all R32’s and R33’s

Terminal Number Description

Terminal Number Description

1 Ignition signal (power transistor) Cyl. No. 1 11 Ignition signal (power transistor) Cyl. No. 6 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 --

5 -- 15 --

6 Sub electrical fan relay (engine temperature switch) 16 ECCS relay

7 Tachometer speed signal 17 -- 8 -- 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) 31 (CLK) Clock (synchronization signal) 22 (TX) Transmit (data sent from control unit) 32 Monitor and check lamp (red)

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 Throttle opening output

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

47 (CHK) Check (diagnosis activation) 57 --

48 Throttle sensor power supply supply 58 Battery power supply

49 Control unit power supply 59 Control unit power supply

50 Ground (control unit) 60 ( - ) Ground (control unit)

101 Injector No. 1 109 Injector power supply (counter electromotive reflex circuit)

102 -- 110 Injector No. 5

103 Injector No. 3 111 --

104 Fuel pump terminal voltage control ouput (FPCM) 1 112 Injector No. 6

105 Injector No. 2 113 --

106 Fuel pump terminal voltage control output (FPCM) 2 114 Injectore No. 4

107 Injector ground 115 --

108 Injector ground 116 Injector ground

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

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MFD pin funtions white block brown block 1 2 3 4 5 * * 6 7 8 9 10 11 25 26 27 28 29 * * 30 31 32 33 34 35 12 13 14 15 16 17 18 19 20 21 22 23 24 36 37 38 39 40 41 42 43 44 45 46 47 48

1 BATT (12V regular power source) 25 Approximately G sensor 2 BATT (12V regular power source) 26 Side G sensor 3 ACC power source 27 Front torque sensor GND 4 TV- (ground of seal) 28 Position of a vessel's helm se 5 TV-SYNC 29 Position of a vessel's helm se 6 SCI sealed ground 30 Speed sensor 7 VP 31 Water temperature sensor 8 HP 32 Oil temperature sensor 9 RGB- (ground of seal)* 2 33 Boost sensor (from 3 connected meters) 10 RGB-SYNC* 2 34 Light/write switch ( ACC ) 11 R*2 35 Throttle opening signal 12 IGN signal 36 Sensor GND (inside MFD N.C.) 13 GND 37 Sensor GND (inside MFD N.C.) 14 GND 38 Front torque ( from 3 connected meters) 15 TV+ 39 Position of a vessel's helm se 16 VTR- (ground of seal) * 1 40 Yaw rate 17 VTR+* 1 41 Sensor GND (inside MFD N.C.) 18 N.C. (NO CONNECTION) 42 Sensor GND (inside MFD N.C.) 19 DISP-NAVI 43 STOP lamp switch 20 NAVI-DISP 44 The hydraulic sensor 21 YS 45 Exhaust warm Sensor 22 G* 2 46 Inhalation warm sensor 23 B* 2 47 Injector injection signal 24 OP NAVI Presence 48Tachometer Drive signa

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