NISSAN 350Z 2007 Z33 Driver Information Manual

COMBINATION METERS
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4. CHECK FUEL LEVEL SENSOR (MAIN·SUB) CIRCUIT
1. Disconnect fuel level sensor unit and fuel pump (main) connec-
tor.
2. Check continuity between fuel level sensor unit (sub) harness
connector B28 terminal 2 and fuel level sensor unit and fuel
pump (main) harness connector B27 terminal 2.
3. Check continuity between fuel level sensor unit (sub) harness
connector B28 terminal 2 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
1. Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B27 terminal 5 and unified meter and
A/C amp. harness connector M49 terminal 36.
2. Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B27 terminal 5 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Install the fuel level sensor unit properly.
Illumination Control Switch InspectionNKS00069
Symptom: Illumination control does not operate.
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Remove combination meter.
3. Remove rear finisher of combination meter.
4. Check illumination control switch connector for looseness.
OK or NG
OK >> GO TO 2.
NG >> Repair illumination control switch connector.2 – 2 : Continuity should exist.
2 – Ground : Continuity should not exist.
SKIB1156E
5 – 36 : Continuity should exist.
5 – Ground : Continuity should not exist.
SKIB0036E

DI-22
COMBINATION METERS
Revision: 2006 November2007 350Z
2. CHECK ILLUMINATION CONTROL SWITCH
1. Disconnect illumination control switch connector.
2. Check continuity between illumination control switch harness
connector M207 terminals 3 or 4 and 5.
OK or NG
OK >> Replace combination meter.
NG >> Replace illumination control switch.
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or VariesNKS0006A
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.
Does the indication value vary only during driving or at the instant of stopping?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble
diagnosis.
Fuel Gauge Does Not Move to FULL PositionNKS0006B
1. QUESTION 1
Does it take a long time for the pointer to move to FULL position?
YES >> GO TO 2.
NO >> GO TO 3.
2. QUESTION 2
Was the vehicle fueled with the ignition switch ON?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.
3. QUESTION 3
Is the vehicle parked on an incline?
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4. QUESTION 4
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES >> Check the fuel level sensor unit. Refer to DI-23, "FUEL LEVEL SENSOR UNIT" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
Terminal Condition Continuity
3
5Illumination control switch upper
side (BRIGHTEN) is pressed.Ye s
Illumination control switch upper
side (BRIGHTEN) is released.No
4Illumination control switch lower side
(DARKEN) is pressed.Ye s
Illumination control switch lower side
(DARKEN) is released.No
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COMBINATION METERS
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Electrical Components InspectionNKS0006C
FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Fuel Level Sensor Unit and Fuel Pump (Main)
Check the resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.

If the results of check are NG, check the fuel level sensor unit
and fuel pump (main) harness. Refer to DI-23, "
Fuel Level Sen-
sor Unit and Pump (Main) Harness" .
Fuel Level Sensor Unit and Pump (Main) Harness
Check the continuity between the following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Fuel Level Sensor Unit (Sub)
Check the resistance between terminals 1 and 2.
*1 and *2: When float rod is in contact with stopper.Terminal Float position [mm (in)] Resistance value [Ω]
25*1 Empty 30 (1.18) Approx. 80
*2 Full 210 (8.27) Approx. 3
SKIB1307E
Terminal Continuity
2 - Signal terminal
Ye s
5 - Ground terminal
SKIA3582E
Terminal Float position [mm (in)] Resistance value [Ω]
12*1 Full 8 (0.31) Approx. 3
*2 Empty 175 (6.89) Approx. 43
SKIB1308E

DI-24
COMBINATION METERS
Revision: 2006 November2007 350Z
Removal and Installation for Combination MeterNKS0006D
REMOVAL
1. Remove instrument driver panel lower. Refer to IP-10, "INSTRU-
MENT PANEL ASSEMBLY" .
2. Remove steering column lower cover. Refer to IP-10, "
INSTRU-
MENT PANEL ASSEMBLY"
3. Remove bolts (4) and remove column upper cover and combina-
tion meter assembly. Refer to IP-10, "
INSTRUMENT PANEL
ASSEMBLY" .
4. Remove screws (6) and remove combination meter.
INSTALLATION
Installation is the reverse order of removal.
Disassembly and Assembly for Combination MeterNKS0006E
DISASSEMBLY
1. Remove screws (6) to separate steering column upper cover.
2. Disengage tabs (2) to separate front finisher.
3. Disengage tabs (8) to separate rear finisher.
PKIA1760E
1. Front finisher 2. Front cover 3. Unified meter control unit
4. Rear cover 5. Screws 6. Rear finisher
7. Upper cover 8. Illumination control switch 9. Trip computer switch
10. Steering column upper cover
PKIA1761E

COMBINATION METERS
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4. Disconnect illumination control switch connector and trip com-
puter switch connector.
5. Remove screws (2) and remove rear cover.
6. Disengage tabs (4) to separate upper cover from rear cover.
7. Remove illumination control switch.
8. Remove trip computer switch.
9. Disengage tabs (7) to separate front cover.
ASSEMBLY
Assembly is the reverse order of disassembly.
SKIA3273E
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DI-26
TRIPLE METERS
Revision: 2006 November2007 350Z
TRIPLE METERSPFP:24845
System DescriptionNKS0006F
TRIPLE METER

Oil pressure gauge and voltmeter are controlled by the triple
meter.

Trip computer is controlled by the signals from the unified meter
and A/C amp.

Triple meter operation can be checked with self-diagnosis mode
of combination meter.
UNIFIED METER AND A/C AMP.
Refer to DI-45, "TRIPLE METER CONTROL FUNCTION" in “UNIFIED METER AND A/C AMP”.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No. 19, located in the fuse block (J/B)]

to triple meter terminal 2.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 14, located in the fuse block (J/B)]

to triple meter terminal 3.
Ground is supplied

to triple meter terminal 1

through grounds M30 and M66.
VOLTMETER
When ignition switch is turned to the ON position, the voltmeter indicates the battery voltage.
OIL PRESSURE GAUGE
With the ignition switch in the ON or START position, power is supplied

through triple meter terminal 9

to oil pressure sensor terminal 1.
Ground is supplied

to triple meter terminal 7

through oil pressure sensor terminal 3.
And triple meter reads oil pressure signal from oil pressure sensor

from oil pressure sensor terminal 2

to triple meter terminal 8.
NOTE:

Triple meter judges an oil pressure condition by oil pressure signal, and transmits oil pressure warning
lamp signal to combination meter through unified meter and A/C amp. with communication line.

Oil pressure gauge is not designed to indicate the low oil level. Use the oil level gauge to check the oil
level.
SKIA7097E

TRIPLE METERS
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TRIP COMPUTER
Function
When the ignition switch is turned ON, the display scrolls all the modes. And then shows the mode chosen
before the ignition switch is turned OFF.

Trip computer is operated by the trip computer switch.

Trip computer receives a switch signal from combination meter
through the unified meter and A/C amp. with communication
line.
The mode of the trip computer is the following.

Vehicle speed

Ambient air temperature

DTE (distance to empty)

Average fuel consumption

Average vehicle speed

Trip time

Trip distance

St op watc h

Shift-up indicator setting mode
How to Change/ Reset the Displayed Mode

The displayed mode can be selected in the following order by momentarily pressing the trip computer
mode switch.
–Vehicle speed → Ambient air temperature → DTE → Average fuel consumption and average vehicle
speed → Trip time and trip distance → Stopwatch → Shift-up indicator setting

Holding the trip computer setting switch for more than 1 second resets the displayed mode (Average fuel
consumption, average vehicle speed, trip time, trip distance or stopwatch).
NOTE:
When the ambient air temperature warning, the tire pressure warning, and the DTE warning, match warning
conditions at the same time, the display automatically displays the ambient air temperature warning.
Vehicle Speed

Trip computer receives vehicle speed signal from combination meter through the unified meter and A/C
amp. with communication line.

Trip computer displays the vehicle speed according to vehicle speed signal.
Ambient Air Temperature

Unified meter and A/C amp. reads ambient air temperature signal from ambient air temperature sensor.
Signal is supplied
–from unified meter and A/C amp. terminal 39
–through ambient sensor terminal 1 and 2
–to unified meter and A/C amp. terminal 49.

Trip computer receives ambient air temperature signal from the unified meter and A/C amp. with commu-
nication line.

Trip computer displays ambient air temperature according to ambient air temperature signal.
NOTE:

Indication range is between −30 and 55 °C (−22 and 131 °F).

When ambient air temperature is less than −30 °C (−22 °F) or more than 55 °C (131 °F), the display
shows “--”.

When ambient air temperature is less than 3 °C (37 °F) continuously, the display shows “ICY” as warning.
At more than 4 °C (39 °F) the display stops showing “ICY”.
PKIA2098E

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TRIPLE METERS
Revision: 2006 November2007 350Z
DTE (Distance to Empty)

Unified meter and A/C amp. uses following signals to calculate the DTE signal.
–Fuel remaining signal (from the fuel level sensor unit)
–Fuel consumption signal (from ECM)
–Vehicle speed signal [from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)]

Trip computer receives DTE signal from the unified meter and A/C amp. with communication line.

Trip computer displays the DTE according to DTE signal.

The indication is refreshed every 30 seconds.
NOTE:

When fuel remaining is less than approx. 10 (10-5/8 US qt, 8-3/4 Imp qt), the display shows “dte” blink
as a warning. And the fuel remaining is less than approx. 8 (8-1/2 US qt, 7 Imp qt), the display shows “-
---”.

When the battery cable is disconnected and reconnected, the display shows “----” for 30 seconds.
Average Fuel Consumption

Unified meter and A/C amp. uses following signals to calculate the average fuel consumption signal.
–Fuel consumption signal (from ECM)
–Vehicle speed signal [from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)]

Trip computer receives the average fuel consumption signal from the unified meter and A/C amp. with
communication line.

Trip computer displays the average fuel consumption according to the average fuel consumption signal.

The indication is refreshed every 30 seconds.
NOTE:
If the average fuel consumption is reset, the average vehicle speed is reset at the same time. While driving
about 1/3 miles (500 m) or for 80 seconds after resetting, the display shows “----”.
Average Vehicle Speed

Unified meter and A/C amp. uses following signals to calculate the average vehicle speed signal.
–Trip distance signal
–Trip time signal

Trip computer receives the average vehicle speed signal from the unified meter and A/C amp. with com-
munication line.

Trip computer displays the average vehicle speed according the average vehicle speed signal.

The indication shows refreshed every 30 seconds.
NOTE:
If the average vehicle speed is reset, the average fuel consumption will be reset at the same time. After reset-
ting, the display will show “----” for 30 seconds.
Trip Time

Unified meter and A/C amp. calculates the time during ignition switch ON.

Trip computer receives the trip time signal from the unified meter and A/C amp. with communication line.

Trip computer displays trip time according to the trip time signal.
NOTE:
If trip time is reset, trip distance is reset at the same time.
Trip Distance

Unified meter and A/C amp. uses following signals to calculate the average fuel consumption signal.
–Trip time signal
–Vehicle speed signal from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)

Trip computer receives the trip distance signal from the unified meter and A/C amp. with communication
line.

Trip computer displays the trip distance according to the trip distance signal.
NOTE:
If trip distance is reset, trip time will be reset at the same time.

TRIPLE METERS
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Stopwatch
Trip computer displays stopwatch.
NOTE:

After 100 hours, the time will start from the reset display again.

Even if the display is switched to the other mode while the time is starting, the stopwatch continues to
advance until the time in the stopwatch mode is stopped.

When the ignition switch is turned OFF, the stopwatch is reset.
Shift-up Indicator Setting Mode
NOTE:
The range of engine speed is 2,000 - 8,000 rpm (when exceeding 8,000 rpm returns to 2,000 rpm).
FA I L - S A F E
Triple meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning.
Trip computer setting switchPress and hold
(for more than 1 sec.)Press
(for less than 1 sec.)
Setting engine speed Increase setting engine speed by 500 rpm. Increase setting engine speed by 100 rpm.
Function Fail-safe operation
Trip computerVehicle speed indication Displays “---”
Outside air temperature indication Displays “--”
DTE (Distance to empty) indication
Displays “----” Average fuel consumption indication
Average vehicle speed indication
Trip distance indication
Trip time indication Displays “--:--”
Illumination control Triple meter illumination Change to nighttime mode.

DI-30
TRIPLE METERS
Revision: 2006 November2007 350Z
SchematicNKS0006G
TKWT5722E