Nissan GT-R (2007-2014 year). METER, WARNING LAMP & INDICATOR. Service Manual — part 3
MWI
METER SYSTEM
MWI-33
< SYSTEM DESCRIPTION >
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LOW BRAKE FLUID WARNING
Control Outline
• The combination meter receives the brake fluid level switch signal from the brake fluid level switch.
• Based on the received brake fluid level switch signal, the combination meter displays the low brake fluid
warning.
INFORMATION DISPLAY : Component Parts Location
INFOID:0000000009189328
JPNIA1142ZZ
Revision: 2012 November
2014 GT-R
MWI-34
< SYSTEM DESCRIPTION >
METER SYSTEM
INFORMATION DISPLAY : Component Description
INFOID:0000000009189329
1.
Fuel level sensor unit
(Sub)
2.
Fuel level sensor unit
(Main)
3.
Door switch (passenger side)
4.
Oil pressure sensor
5.
Ambient sensor
6.
Oil level sensor
7.
Washer level switch
8.
AWD control unit
9.
Brake fluid level switch
10. ABS actuator and electric unit (con-
trol unit)
11. Door switch (driver side)
12. TCM
13. Trunk switch
14. Combination meter
15. Combination switch (Lighting switch)
16. Low tire pressure warning control unit 17. Parking brake
18. BCM
19. ECM
A.
Under rear seat
B.
Right side of engine
C.
Radiator core support (center)
D.
Oil pan LH upper
E.
Front RH seat under
F.
Trunk room left back
G.
Lower instrument panel LH
H.
Dashboard side lower (passenger
seat side)
I.
Glove box assembly back
Unit
Description
Combination meter
Based on each received signal from each unit, switch, and sensor, controls the information dis-
play.
Fuel level sensor unit
Detects the fuel level in fuel tank using the fuel level sensor unit, and transmits the fuel gauge
signal to the combination meter.
Oil pressure sensor
Detects the oil pressure of engine oil, and transmits the oil pressure sensor signal to the com-
bination meter.
ECM
Transmits the following signals to the combination meter via CAN communication.
• Engine speed signal
• Fuel consumption monitor signal
• Engine status signal
• ASCD status signal
ABS actuator and electric unit (con-
trol unit)
Transmits the following signals to the combination meter via CAN communication.
• Vehicle speed signal
• ABS warning display signal
• VDC warning display signal
BCM
Transmits the signals received from each unit to the combination meter via CAN communica-
tion.
TCM
Transmits the following signals to the combination meter via CAN communication.
• Shift lever position check display signal
• Shift lever position warning display signal
• Transmission oil high temperature warning
display signal
• Transmission clutch high temperature
warning display signal
• Transmission system warning display sig-
nal
• Transmission system check display signal
AWD control unit
Transmits the following signals to the combination meter via CAN communication.
• AWD clutch high temperature warning dis-
play signal
• Front/rear tire size discrepancy warning dis-
play signal
• AWD system warning display signal
Low tire pressure warning control
unit
Transmits the following signals to the combination meter via CAN communication.
• Run-flat tire warning display signal
• Low tire pressure warning display signal
• Tire pressure monitoring system warning
display signal
Meter control switch
Transmits the following signals to the combination meter.
• Enter switch signal
• Select switch signal
Brake fluid level switch
Transmits the brake fluid level switch signal to the combination meter.
Parking brake switch
Transmits the parking brake switch signal to the combination meter.
Oil level sensor
Transmits the oil level sensor signal to the combination meter.
Revision: 2012 November
2014 GT-R
MWI
METER SYSTEM
MWI-35
< SYSTEM DESCRIPTION >
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UP-SHIFT INDICATOR
UP-SHIFT INDICATOR : System Diagram
INFOID:0000000009189330
UP-SHIFT INDICATOR : System Description
INFOID:0000000009189331
• The combination meter receives the engine speed signal from ECM and the shift position signal (manual
mode range) from TCM via CAN communication, and illuminates/turns off/blinks the up-shift indicator.
• The engine speed at which the up-shift indicator is illuminated/turned off/blinked can be set with the setting
function of information display.
- OFF: All of the up-shift indicators do not illuminate.
- 3,000 to 6,300 rpm: Engine speed can be set at which the up-shift indicator (green) is illuminated.
- AUTO: Up-shift indicator (green) does not illuminate. The up-shift indicator (yellow) and up-shift indicator
(red) is turned on/off according to the set value.
UP-SHIFT INDICATOR (GREEN)
• Using the setting function of information display, the up-shift warning speed can be set.
• The up-shift indicator (green) is illuminated/turned off/blinked according to the engine speed.
- OFF: If the actual engine speed is lower than the arbitrarily set engine speed, which is 3,000 to 6,300 rpm
set by the setting function of information display, by 500 rpm or more, the up-shift warning lamp is turned
OFF.
Also, while the up-shift indicator (green) is blinking or illuminated, if the actual engine speed becomes lower
than the arbitrarily set engine speed by 600 rpm or more, the up-shift warning lamp is turned OFF.
- Blink: If the actual engine speed is lower than the arbitrarily set engine speed by 500 rpm or more, the up-
shift indicator (green) is blinked.
- ON: When the actual engine speed exceeds the arbitrarily set engine speed, the up-shift indicator (green) is
illuminated.
Also, while the up-shift indicator (green) is blinking or illuminated, if the actual engine speed becomes lower
than the arbitrarily set engine speed by 100 rpm or more, the up-shift indicator is blinked.
UP-SHIFT INDICATOR (YELLOW)
The up-shift indicator (yellow) is turned ON/OFF according to the engine speed.
• OFF: When the engine speed is less than 6,300 rpm, the up-shift indicator (yellow) does not illuminate.
Also, while the up-shift indicator (yellow) is illuminated, when the engine speed becomes 6,200 rpm or lower,
the up-shift indicator (yellow) is turned OFF.
• ON: When the engine speed becomes 6,300 rpm or more, the up-shift indicator (yellow) is illuminated.
UP-SHIFT INDICATOR (RED)
The up-shift indicator (red) is turned ON/OFF according to the engine speed.
• OFF: When the engine speed is less than 6,800 rpm, the up-shift indicator (red) does not illuminate.
Washer level switch
Transmits the washer level switch signal to the combination meter.
Ambient sensor
Detects the ambient air temperature, and transmits the ambient sensor signal to the combina-
tion meter.
Unit
Description
JPNIA1148GB
Revision: 2012 November
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MWI-36
< SYSTEM DESCRIPTION >
METER SYSTEM
Also, while the up-shift indicator (red) is illuminated, when the engine speed becomes 6,700 rpm or lower,
the up-shift indicator (red) is turned OFF.
• ON: When the engine speed becomes 6,800 rpm or more, the up-shift indicator (red) is illuminated.
UP-SHIFT INDICATOR : Component Parts Location
INFOID:0000000009189332
JPNIA1142ZZ
Revision: 2012 November
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MWI
METER SYSTEM
MWI-37
< SYSTEM DESCRIPTION >
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UP-SHIFT INDICATOR : Component Description
INFOID:0000000009189333
1.
Fuel level sensor unit
(Sub)
2.
Fuel level sensor unit
(Main)
3.
Door switch (passenger side)
4.
Oil pressure sensor
5.
Ambient sensor
6.
Oil level sensor
7.
Washer level switch
8.
AWD control unit
9.
Brake fluid level switch
10. ABS actuator and electric unit (con-
trol unit)
11. Door switch (driver side)
12. TCM
13. Trunk switch
14. Combination meter
15. Combination switch (Lighting switch)
16. Low tire pressure warning control unit 17. Parking brake
18. BCM
19. ECM
A.
Under rear seat
B.
Right side of engine
C.
Radiator core support (center)
D.
Oil pan LH upper
E.
Front RH seat under
F.
Trunk room left back
G.
Lower instrument panel LH
H.
Dashboard side lower (passenger
seat side)
I.
Glove box assembly back
Unit
Description
Combination meter
Using the signals received from each unit and switch, controls the shift position indicator.
ECM
Transmits the engine speed signal to the combination meter via CAN communication.
TCM
Transmits the shift position signal (manual mode range) to the combination meter via CAN com-
munication.
Meter control switch
Transmits the following signals to the combination meter.
• Enter switch signal
• Select switch signal
Revision: 2012 November
2014 GT-R
MWI-38
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (METER)
DIAGNOSIS SYSTEM (METER)
Diagnosis Description
INFOID:0000000009189334
SELF-DIAGNOSIS MODE
Using the self-diagnosis mode function, the combination meter can check the drive circuit of each meter
(speedometer, tachometer, engine coolant temperature gauge, and fuel gauge), dot matrix (odo/trip meter,
information display), and the LCD function of segment (shift position indicator).
OPERATION PROCEDURE
1.
Turn the ignition switch ON, and switch the tripmeter to “trip A” or “trip B”.
NOTE:
If the diagnosis function is activated with “trip A” displayed, the mileage on “trip A” is reset to “0000.0”.
(The same way for “trip B”.)
2.
Turn the ignition switch OFF.
3.
While pressing the trip A/B reset switch (1), turn the ignition
switch ON again.
4.
Check that the tripmeter displays “0000.0”.
5.
Press the trip A/B reset switch at least 3 times (within 7 seconds
after the ignition switch is turned ON).
6.
The combination meter self-diagnosis mode starts.
• On the information display (1), the dots of the dot matrix blink
alternately.
• Pointers of speedometer, tachometer, and engine coolant tem-
perature gauge return to zero, and all of the segments of shift
position indicator illuminate.
NOTE:
• If the self diagnosis mode of combination meter does not start, check the combination meter power sup-
ply and ground circuit. When everything is normal, replace the combination meter.
• If any section of the dot matrix on information display or of the segment in shift position indicator does
not illuminate, replace the combination meter.
NNNIA0019ZZ
NNNIA0086ZZ
Revision: 2012 November
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MWI
DIAGNOSIS SYSTEM (METER)
MWI-39
< SYSTEM DESCRIPTION >
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7.
When the trip A/B reset switch is pressed, (while the trip A/B reset switch is pressed) each meter oper-
ates.
NOTE:
If any meter does not operate, replace the combination meter.
The figure is reference.
JPNIA1266ZZ
Revision: 2012 November
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MWI-40
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000009189335
1.
CHECK FUSES
Check that the following fuses are not blown:
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the fuse with a new one after repairing the applicable circuit.
2.
CHECK POWER SUPPLY CIRCUIT
Check the voltage between the combination meter harness connector terminals and the ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harness between the fuse and the combination meter.
3.
CHECK GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the combination meter connector.
3.
Check for continuity between the combination meter harness connector terminals and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
Power source
Fuse No.
Battery
11
Ignition switch ON or START
4
Terminal No.
Signal name
Ignition switch
Voltage
1
Battery power supply
OFF
Battery voltage
2
Ignition signal
ON
Battery voltage
Combination meter
Ground
Continuity
Connector
Terminal
M53
3
Existed
5
Revision: 2012 November
2014 GT-R
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-41
< DTC/CIRCUIT DIAGNOSIS >
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FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000009189336
Detects the fuel level in fuel tank using the fuel level sensor unit, and transmits the fuel level sensor signal to
the combination meter.
Diagnosis Procedure
INFOID:0000000009189337
1.
CHECK FUEL LEVEL SENSOR UNIT (SUB) CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the connectors of combination meter and fuel level sensor unit (sub).
3.
Check for continuity between the combination meter harness connector and the fuel level sensor unit
(sub) harness connector.
4.
Check for continuity between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the harnesses or connectors.
2.
CHECK FUEL LEVEL SENSOR UNIT (MAIN-SUB) CIRCUIT
1.
Disconnect fuel level sensor unit and fuel pump (main) connector.
2.
Check for continuity between the fuel level sensor unit (sub) harness connector and the fuel level sensor
unit and fuel pump (main) harness connector.
3.
Check for continuity between the fuel level sensor unit (sub) harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (MAIN) CIRCUIT
1.
Check for continuity between the fuel level sensor unit and fuel pump (main) harness connector and the
combination meter harness connector.
Combination meter
Fuel level sensor unit (sub)
Continuity
Connector
Terminal
Connector
Terminal
M53
38
B27
1
Existed
Combination meter
Ground
Continuity
Connector
Terminal
M53
38
Not existed
Fuel level sensor unit (sub)
Fuel level sensor unit and fuel pump
(main)
Continuity
Connector
Terminal
Connector
Terminal
B27
2
B225
2
Existed
Fuel level sensor unit (sub)
Ground
Continuity
Connector
Terminal
B27
2
Not existed
Fuel level sensor unit and fuel pump
(main)
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
B225
3
M53
18
Existed
Revision: 2012 November
2014 GT-R
MWI-42
< DTC/CIRCUIT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
2.
Check for continuity between the fuel level sensor unit and fuel pump (main) harness connector and the
ground.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-68, "Removal and Installation"
NO
>> Repair the harnesses or connectors.
Fuel level sensor unit and fuel pump
(main)
Ground
Continuity
Connector
Terminal
B225
3
Not existed
Revision: 2012 November
2014 GT-R
MWI
METER CONTROL SWITCH SIGNAL CIRCUIT
MWI-43
< DTC/CIRCUIT DIAGNOSIS >
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METER CONTROL SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000009189338
Transmits the following signals to the combination meter.
Diagnosis Procedure
INFOID:0000000009189339
1.
CHECK METER CONTROL SWITCH INPUT SIGNAL
1.
Turn the ignition switch ON.
2.
Measure voltage between the following terminals of the combination meter.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the connectors of combination meter and meter control switch.
3.
Check for continuity between the combination meter harness connector terminal and the meter control
switch harness connector.
4.
Check for continuity between the combination meter harness connector and the ground.
• Illumination control switch signal (+)
• Illumination control switch signal (–)
• Trip A/B reset switch signal
• Select switch signal
• Enter switch signal
Terminal
No.
Condition
Voltage
(Approx.)
23 – 6
When
switch is pressed
0 V
Other than the above
5 V
24 – 6
When
switch is pressed
0 V
Other than the above
5 V
25 – 6
When trip A/B reset switch is pressed
0 V
Other than the above
5 V
26 – 6
When enter switch is pressed
0 V
Other than the above
5 V
27 – 6
When select switch is pressed
0 V
Other than the above
5 V
Combination meter
Meter control switch
Continuity
Connector
Terminal
Connector
Terminal
M53
6
M54
2
Existed
23
3
24
1
25
8
26
6
27
7
Revision: 2012 November
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MWI-44
< DTC/CIRCUIT DIAGNOSIS >
METER CONTROL SWITCH SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000009189340
1.
UNIT INSPECTION OF METER CONTROL SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the meter control switch connector.
3.
Check the continuity of meter control switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the meter control switch.
Combination meter
Ground
Continuity
Connector
Terminal
M53
6
Not existed
23
24
25
26
27
Terminal No.
Operation and status
Continuity
6
2
Press the enter switch
Existed
Other than the above
Not existed
7
2
Press the select switch
Existed
Other than the above
Not existed
8
2
Press the trip A/B reset switch.
Existed
Other than the above
Not existed
3
2
Press the
switch
Existed
Other than the above
Not existed
1
2
Press the
switch
Existed
Other than the above
Not existed
Revision: 2012 November
2014 GT-R
MWI
OIL PRESSURE SENSOR SIGNAL CIRCUIT
MWI-45
< DTC/CIRCUIT DIAGNOSIS >
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OIL PRESSURE SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000009189341
Detects the engine oil pressure and transmits the oil pressure sensor signal to the combination meter.
Diagnosis Procedure
INFOID:0000000009189342
1.
CHECK OIL PRESSURE SENSOR CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the connectors of combination meter and oil pressure sensor.
3.
Check for continuity between the combination meter harness connector and the oil pressure sensor har-
ness connector.
4.
Check for continuity between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000009189343
1.
CHECK OIL PRESSURE SENSOR
Check the voltage between the combination meter terminal 35 and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the oil pressure switch.
Combination meter
Oil pressure sensor
Continuity
Connector
Terminal
Connector
Terminal
M53
34
E255
1
Existed
M53
35
E255
2
Existed
M53
14
E255
3
Existed
Combination meter
Ground
Continuity
Connector
Terminal
M53
34
Not existed
M53
35
Not existed
M53
14
Not existed
Condition
Measuring condition
Voltage (V)
Engine stop
Ignition switch ON
Approx. 1
Engine running
Oil pressure is at 500 kPa
Approx. 3
Revision: 2012 November
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MWI-46
< DTC/CIRCUIT DIAGNOSIS >
PARKING BRAKE SWITCH SIGNAL CIRCUIT
PARKING BRAKE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000009189344
Transmits the parking brake switch signal to the combination meter.
Diagnosis Procedure
INFOID:0000000009189345
1.
CHECK COMBINATION METER INPUT SIGNAL
1.
Turn the ignition switch ON.
2.
Check the voltage between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the connectors of combination meter and parking brake switch.
3.
Check for continuity between the combination meter harness connector and the parking brake switch har-
ness connector.
4.
Check for continuity between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000009189346
1.
CHECK PARKING BRAKE SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the parking brake switch connector.
3.
Check for continuity between the parking brake switch connector and the ground.
YES
>> INSPECTION END
Probe
Measuring condition
Voltage
(Approx.)
(+)
(-)
Combination meter
Connector
Terminal
Ground
Parking brake operated
0 V
M53
31
Parking brake released
5 V
Combination meter
Parking brake switch
Continuity
Connector
Terminal
Connector
Terminal
M53
31
M132
1
Existed
Combination meter
Ground
Continuity
Connector
Terminal
M53
31
Not existed
Parking brake switch
Measuring condition
Continuity
(+)
(-)
1
Ground
Parking brake applied
Existed
Parking brake released
Not exist
Revision: 2012 November
2014 GT-R
MWI
PARKING BRAKE SWITCH SIGNAL CIRCUIT
MWI-47
< DTC/CIRCUIT DIAGNOSIS >
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NO
>> Replace the parking brake switch.
Revision: 2012 November
2014 GT-R
MWI-48
< DTC/CIRCUIT DIAGNOSIS >
WASHER LEVEL SWITCH SIGNAL CIRCUIT
WASHER LEVEL SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000009189347
When the washer fluid in washer tank is less than the specified level, and washer level switch is turned ON,
the washer level switch transmits the washer level switch signal to the combination meter.
Diagnosis Procedure
INFOID:0000000009189348
1.
CHECK COMBINATION METER INPUT SIGNAL
1.
Turn the ignition switch ON.
2.
Check the voltage between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK WASHER LEVEL SWITCH CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the connectors of combination meter and washer level switch.
3.
Check for continuity between the combination meter harness connector and the washer level switch har-
ness connector.
4.
Check for continuity between the combination meter harness connector and the ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000009189349
1.
CHECK WASHER LEVEL SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the washer level switch connector.
3.
Check the washer level switch.
Is the inspection result normal?
YES
>> INSPECTION END
Probe
Measuring condition
Voltage
(Approx.)
(+)
(-)
Combination meter
Connector
Terminal
Ground
Washer level switch ON
0 V
M53
33
Washer level switch OFF
5 V
Combination meter
Washer level switch
Continuity
Connector
Terminal
Connector
Terminal
M53
33
E30
1
Existed
Combination meter
Ground
Continuity
Connector
Terminal
M53
33
Not existed
Terminal
Washer level switch
Continuity
1 - 2
ON
Existed
OFF
Not existed
Revision: 2012 November
2014 GT-R
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