2007 NISSAN 350Z air condition

COMBINATION METERS
DI-21
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
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

TRIPLE METERS
DI-27
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
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

DI-42
TRIPLE METERS
Revision: 2006 November2007 350Z
Trip Computer Switch InspectionNKS0006U
Symptom:

Shift-up indicator setting indication is not displayed properly or shift-up indicator does not operate prop-
erly.

Trip computer switch does not operate.
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Remove combination meter. Refer to DI-24, "
Removal and Installation for Combination Meter" .
3. Remove rear finisher to combination meter. Refer to DI-24, "
Disassembly and Assembly for Combination
Meter" .
4. Check trip computer switch connector for looseness.
OK or NG
OK >> GO TO 2.
NG >> Repair trip computer switch connector.
2. CHECK CIRCUIT
1. Disconnect trip computer switch connector.
2. Check continuity between trip computer switch harness connec-
tor M208 terminals 3, 4 and 5.
OK or NG
OK >> Replace combination meter.
NG >> Replace trip computer switch.
Removal and Installation of Triple MetersNKS0006V
REMOVAL
1. Remove cluster lid C. Refer to IP-10, "INSTRUMENT PANEL
ASSEMBLY" .
2. Remove screws (2), and remove triple meters.
INSTALLATION
Installation is the reverse order of removal.
Terminal Condition Continuity
3
5Setting switch is pressed. Yes
Setting switch is released. No
4Mode switch is pressed. Yes
Mode switch is released. No
SKIA3271E
PKIA1762E

UNIFIED METER AND A/C AMP
DI-45
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
TRIPLE METER CONTROL FUNCTION

Unified meter and A/C amp. receives necessary information for triple meter from each unit.

Unified meter and A/C amp. calculates necessary information for trip computer.

Unified meter and A/C amp. converses with the combination meter transmits a signal with through com-
munication line (TX, RX) between unified meter and A/C amp. and triple meter.
Input/output signals between unified meter and A/C amp. and triple meter
NOTE:
Triple meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-29, "
FA I L-
SAFE" .
A/C AUTO AMP. FUNCTION
Unified meter and A/C amp. controls each operation for A/C auto amp. Regarding A/C control, refer to AT C -
24, "AIR CONDITIONER CONTROL" in ATC section.
OTHER FUNCTIONS
Signal Buffer Function
Unified meter and A/C amp. transmits each signal to other units with CAN communication.
Unit Input Output
Unified meter and A/C amp.

LCD indication condition signal

Shift-up indicator setting signal

Oil pressure warning lamp signal

Triple meter receive error signal

Ambient air temperature signal

Ambient air temperature warning signal

Trip distance signal

Trip time signal

Average vehicle speed signal

Average fuel consumption signal

Vehicle speed signal

DTE (Distance to empty) signal

DTE (Distance to empty) warning signal

Tire pressure warning signal

Trip computer mode switch signal

Trip computer setting switch signal

Self-diagnosis condition signal

Odo/trip switch signal

Triple meter specifications signal

DI-48
UNIFIED METER AND A/C AMP
Revision: 2006 November2007 350Z
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
*1: It dose not change when fastening or unfastening the passenger seat belt.
*2: Monitor keeps indicating “OFF” when brake warning lamp is on by the parking brake operation or low brake fluid level. AIR PRES W/L [ON/OFF] XIndicates [ON/OFF] condition of low tire pressure warning
lamp.
SEAT BELT W/L
*1[ON/OFF] X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] XIndicates [ON/OFF] condition of VDC/TCS OFF indicator
lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L
*2[ON/OFF] X Indicates [ON/OFF] condition of brake warning lamp.
M RANGE SW [ON/OFF] X XIndicates [ON/OFF] condition of manual mode range
switch.
NM RANGE SW [ON/OFF] X XIndicates [ON/OFF] condition of except for manual mode
range switch.
AT SFT UP SW [ON/OFF] X X Indicates [ON/OFF] condition of A/T shift up switch.
AT SFT DWN SW [ON/OFF] X X Indicates [ON/OFF] condition of A/T shift down switch.
AT P MODE SW [ON/OFF] X Indicates [ON/OFF] condition of A/T power mode switch.
AT S MODE SW [ON/OFF] X Indicates [ON/OFF] condition of A/T snow mode switch.
BRAKE SW [ON/OFF] XIndicates [ON/OFF] condition of brake switch (stop lamp
switch).
AT-M IND [ON/OFF] X XIndicates [ON/OFF] condition of A/T manual mode indica-
tor.
AT-M GEAR [5/4/3/2/1] X XIndicates [5/4/3/2/1] condition of A/T manual mode gear
position.
P RANGE IND ON/OFF X X Indicates [ON/OFF] condition of A/T shift P range indicator.
R RANGE IND [ON/OFF] X XIndicates [ON/OFF] condition of A/T shift R range indica-
tor.
N RANGE IND [ON/OFF] X XIndicates [ON/OFF] condition of A/T shift N range indica-
tor.
D RANGE IND [ON/OFF] X XIndicates [ON/OFF] condition of A/T shift D range indica-
tor.
AT CHECK W/L [ON/OFF] XIndicates [ON/OFF] condition of A/T CHECK warning
lamp.
CRUISE IND [ON/OFF] X Indicates [ON/OFF] condition of CRUISE indicator.
SET IND [ON/OFF] X Indicates [ON/OFF] condition of SET indicator.Monitor item [Unit] MAIN SIGNALSSELECTION
FROM MENUContents

WARNING CHIME
DI-83
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
CONSULT-III Function (METER A/C AMP)NKS0007O
Refer to DI-47, "CONSULT-III Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
CONSULT-III Function (BCM)NKS0007P
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DIAGNOSTIC ITEMS DESCRIPTION
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
SELF-DIAGNOSTIC RESULTS
Display Item List
NOTE:
If “CAN communication [U1000]” is indicated, after printing the monitor item, go to “CAN system”. Refer to
LAN-48, "
CAN System Specification Chart" .
Trouble DiagnosisNKS00267
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-71, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-84, "
PRELIMINARY INSPECTION" .
4. Referring to trouble diagnosis chart, make sure the cause of the malfunction and repair or replace applica-
ble parts. Refer to DI-84, "
Symptom Chart" .
5. Does warning chime system operate normally? If yes, GO TO 6. If no, GO TO 4.
6. INSPECTION END
System Test item Diagnosis mode Description
BCMBCMSELF-DIAG
RESULTBCM performs self-diagnosis of CAN communication.
BUZZERDATA MONITOR The input data to the BCM control unit is displayed in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending driving signal
to them.
Monitor item [Unit] ALL SIGNALSSELECTION
FROM MENUContents
IGN ON SW [ON/OFF] X X Indicates [ON/OFF] condition of ignition switch.
KEY ON SW [ON/OFF] X X Indicates [ON/OFF] condition of key switch.
DOOR SW-DR [ON/OFF] X X Indicates [ON/OFF] condition of driver side door switch.
LIGHT SW 1ST [ON/OFF] X X Indicates [ON/OFF] condition of lighting switch.
BUCKLE SW [ON/OFF] X X Indicates [ON/OFF] condition of seat belt switch.
Test item Malfunction is detected when···
LIGHT WARN ALM This test is able to check light warning chime operation.
IGN KEY WARN ALM This test is able to check ignition key warning chime operation.
SEAT BELT WARN ALM This test is able to check seat belt warning chime operation.
Display item [Code] Malfunction is detected when···
CAN communication [U1000] Malfunction is detected in CAN communication.

WARNING CHIME
DI-85
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness between BCM and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector M91 terminal
52 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Meter Buzzer Circuit InspectionNKS0026F
1. CHECK OPERATION OF METER BUZZER
1. Select “BUZZER” of “BCM” on CONSULT-III.
2. Perform “LIGHT WARN ALM”, “IGN KEY WARN ALM” or “SEAT BELT WARN ALM” of “ACTIVE TEST”.
Does meter buzzer beep?
YES >> GO TO 3.
NO >> GO TO 2.
2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-III.
2. With “DATA MONITOR”, confirm “BUZZER” under the condition of buzzer input. (Seat belt warning chime,
turn signal lamp operate, etc.)
OK or NG
OK >> Replace combination meter.
NG >> Replace BCM. Refer to BCS-17, "
Removal and Installation of BCM" .
Terminals Ignition switch position
(+)
(–) OFF ON
ConnectorTerminal
(Wire color)
M9142
GroundBattery voltage Battery voltage
55
M90 38 0 V Battery voltage
SKIB2802E
52 – Ground : Continuity should exist.
SKIA9667E
“BUZZER”
Under the condition of buzzer input : ON
Except above : OFF