2007 NISSAN 350Z Diagnosis

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

DI-38
TRIPLE METERS
Revision: 2006 November2007 350Z
Self-Diagnosis Mode of Triple MeterNKS0006L
SELF-DIAGNOSIS FUNCTION
Triple meter operation can be checked with self-diagnosis mode of combination meter.
OPERATION PROCEDURE
1. While pressing the odo/trip meter switch, turn ignition switch ON.
2. Make sure that the trip meter displays “0000.0”.
3. Press the odo/trip meter switch at least 3 times (within 7 seconds after the ignition switch is turned ON).
4. All the segments on the trip computer illuminate. At this time, the triple meter is turned to self-diagnosis
mode.
NOTE:
If any of the segments is not displayed, replace triple meter.
5. Press the odo/trip meter switch. voltmeter and oil pressure
gauge should indicate as shown in the figure while pressing odo/
trip meter switch.
NOTE:
If voltmeter or oil pressure gauge is not activated, replace triple
meter.
CONSULT-III Function (METER A/C AMP)NKS0006M
Refer to DI-47, "CONSULT-III Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
SKIA8981E
PKIA1942E

TRIPLE METERS
DI-39
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Revision: 2006 November2007 350Z
Trouble DiagnosisNKS0006N
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform diagnosis according to diagnosis flow. Refer to DI-39, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom.
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
PRELIMINARY CHECK
1. CHECK COMMUNICATION LINE
Perform self-diagnosis of unified meter and A/C amp.
Self-diagnostic results content
No malfunction detected>>GO TO 2.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
2. CHECK OPERATION OF SELF-DIAGNOSIS MODE (COMBINATION METER)
Activate self-diagnosis mode of combination meter. Refer to DI-15, "
Self-Diagnosis Mode of Combination
Meter" .
Does self-diagnosis mode operate?
YES >> GO TO 3.
NO >> Check combination meter power supply and ground circuit. If normal, replace combination meter.
3. CHECK OPERATION OF SELF-DIAGNOSIS MODE (TRIPLE METER)
Check operation of triple meter in self-diagnosis mode. Refer to DI-38, "
Self-Diagnosis Mode of Triple Meter" .
Does self-diagnosis mode operation namely?
YES >> INSPECTION END
NO >> GO TO 4.
4. CHECK POWER SUPPLY AND GROUND CIRCUIT OF TRIPLE METER
Check power supply and ground circuit of triple meter.
OK or NG
OK >> Replace triple meter.
NG >> Repair power supply and ground circuit of triple meter.
Symptom ChartNKS0006O
Trouble phenomenon Possible cause
Speed indication is not displayed properly. Refer to DI-40, "
Vehicle Speed Signal Inspection" .
Ambient air temperature indication is not displayed properly.
(It may take a short time to steady the indication after ignition
switch is turned ON.)
NOTE:
If the meter is powered up with the ambient sensor disconnected,
ambient air temperature display will show “---” even if the sensor is
reconnected. In this case, with the sensor connected, disconnect
and reconnect the battery, then the correct temperature will be dis-
played.Refer to ATC-92, "
AMBIENT TEMPERATURE INPUT PRO-
CESS" in “ATC”.
DTE (distance to empty) indication is not displayed properly.
Refer to DI-40, "
Fuel Consumption Monitor Signal Inspection" .
Average fuel consumption indication is not displayed properly.
Shift-up indicator setting indication is not displayed properly or
shift-up indicator does not operate properly.Refer to DI-42, "
Trip Computer Switch Inspection" .

DI-40
TRIPLE METERS
Revision: 2006 November2007 350Z
Vehicle Speed Signal InspectionNKS0006R
Symptom: Speed indication is not displayed properly.
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Start engine and select “METER A/C AMP” on CONSULT-III.
2. Using “SPEED METER” on the “DATA MONITOR”, compare the value of data monitor with speed indica-
tion of trip computer.
OK or NG
OK >> Refer to DI-18, "Vehicle Speed Signal Inspection" of “COMBINATION METERS”.
NG >> Replace triple meter.
Fuel Consumption Monitor Signal InspectionNKS0006S
Symptom:

DTE (distance to empty) indication is not displayed properly.

Average fuel consumption indication is not displayed properly.
1. CHECK ECM (CONSULT-III)
Perform self-diagnosis of ECM. Refer to EC-116, "
CONSULT-III Function (ENGINE)" .
Self
-diagnostic results
No malfunction detected>>Replace unified meter and A/C amp.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
Oil Pressure Sensor Signal InspectionNKS0006T
Symptom: Indication is malfunction of oil pressure gauge.
1. CHECK OIL PRESSURE SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between triple meter harness connector M44 ter-
minal 8 and ground.
OK or NG
OK >> Replace triple meter.
NG >> GO TO 2.
Average vehicle speed indication is not indicated properly.
Replace triple meter. Trip distance indication is not indicated properly.
Trip time indication is not indicated properly.
Stopwatch indication is not displayed properly.
Indication is malfunction of voltmeter.
Indication is malfunction of oil pressure gauge. Refer to DI-40, "
Oil Pressure Sensor Signal Inspection" .
Trip computer switch is not operate. Refer to DI-42, "
Trip Computer Switch Inspection" . Trouble phenomenon Possible cause
8 – Ground
When ignition switch is in ON
position (Engine stopped.): Approx. 1 V
Engine running [When the oil
pressure is 80 psi (500 kPa)]: Approx. 3 V
SKIB1167E

DI-44
UNIFIED METER AND A/C AMP
Revision: 2006 November2007 350Z
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS0006X
DESCRIPTION

For the unified meter and A/C amp., the signal required for con-
trolling the combination meter and triple meter are integrated in
the A/C auto amp.

Unified meter and A/C amp. corresponds a CONSULT-III func-
tion (self-diagnosis results, CAN diagnosis support monitor and
data monitor).
COMBINATION METER CONTROL FUNCTION

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

Unified meter and A/C amp. converses with the combination meter transmits a signal through with com-
munication line (TX, RX) between unified meter and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-7,
"FAIL-SAFE" .
SKIB0018E
Unit Input Output
Unified meter and A/C amp.

Seat belt buckle switch signal (Driver's side)

Trip computer mode switch signal

Trip computer setting switch signal

Illumination control nighttime required signal

Refuel status signal

Vehicle speed signal

Low-fuel warning lamp condition signal

Self-diagnosis condition signal

Odo/trip switch signal

Delivery destination data signal

Combination meter receive error signal

Combination meter specifications signal

Triple meter specifications signal

Engine speed signal

Engine coolant temperature signal

Fuel level sensor signal (resistance value)

Malfunction indicator lamp signal

ABS warning lamp signal

Tire pressure warning lamp signal

Brake warning lamp signal

Oil pressure warning lamp signal

Turn indicator signal

High beam request signal

VDC OFF indicator lamp signal

TCS OFF indicator lamp signal

SLIP indicator lamp signal

CRUISE indicator lamp signal

SET indicator lamp signal

A/T CHECK indicator lamp signal

A/T position indicator signal

Manual mode indicator signal

Manual mode gear position signal

Shift-up indicator setting signal

CAN communication condition signal of A/T

Door switch signal

Position lights request signal

Buzzer output signal

UNIFIED METER AND A/C AMP
DI-45
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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

UNIFIED METER AND A/C AMP
DI-47
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Revision: 2006 November2007 350Z
CONSULT-III Function (METER A/C AMP)NKS00071
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAGNOSTIC RESULTS
Display Item List
NOTE:
“TIME” means the following.

0: Means detected malfunction at present.

1-63: Means detected malfunction in past. (Displays number of ignition switch OFF → ON after detecting
malfunction. “Self-diagnosis result” is erased when exceeding “63”.)
DATA MONITOR
Display Item List
System Diagnosis mode Description
METER A/C AMPSELF-DIAG RESULTSUnified meter and A/C amp. check the conditions and displays memo-
rized erro.
DATA MONOTOR Displays unified meter and A/C amp. input data in real time.
Display item [Code] Malfunction is detected when...Reference
page
CAN COMM CIRC [U1000]When unifield meter and A/C amp. is not transmitting or receiving CAN communica-
tion signal for 2 seconds or less.DI-50
T/METER COMM CIRC [B2201]Malfunction is detected in communication of between triple meter and unified meter
and A/C amp.DI-50
METER COMM CIRC [B2202]Malfunction is detected in communication of between combination meter and unified
meter and A/C amp.DI-52
VEHICLE SPEED CIRC [B2205]When an erroneous signal is input.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about
2 seconds). DI-55
Monitor item [Unit] MAIN SIGNALSSELECTION
FROM MENUContents
SPEED METER [km/h] or [mph] X XThis is the angle correction value after the speed signal
from the VDC/TCS/ABS control unit [with VDC system] or
ABS actuator and electric unit (control unit) [without VDC
system] is converted into the vehicle speed.
SPEED OUTPUT [km/h] or [mph] X XThis is the angle correction value before the speed signal
from the VDC/TCS/ABS control unit [with VDC system] or
ABS actuator and electric unit (control unit) [without VDC
system] is converted into the vehicle speed.
TACHO METER [rpm] X XThis is the converted value for the engine speed signal
from the ECM.
W TEMP METER [°C] or [°F] X XThis is the converted value for the engine coolant tempera-
ture signal from the ECM.
FUEL METER [lit.] X XThis is the processed value for the signal (resistance
value) from the fuel gauge.
DISTANCE [km] or [mile] X XThis is the calculated value for the speed signal from the
VDC/TCS/ABS control unit [with VDC system] or ABS
actuator and electric unit (control unit) [without VDC sys-
tem] and the signal (resistance signal) from the fuel gauge.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] XIndicates [ON/OFF] condition of malfunction indicator
lamp.

DI-50
UNIFIED METER AND A/C AMP
Revision: 2006 November2007 350Z
DTC [U1000] CAN Communication CircuitNKS00072
Symptom: Display CAN COMM CIRC [U1000] at the result of self-diagnosis for unified meter and A/C amp.
1. CHECK CAN COMMUNICATION
1. Select “SELF-DIAG RESULTS” mode for “METER A/C AMP” with CONSULT-III.
>> Go to “LAN system”. Refer to LAN-48, "
CAN System Specification Chart" .
DTC [B2201] Triple Meter Communication CircuitNKS00073
Symptom: Display T/METER COMM CIRC [B2201] at the result of self-diagnosis for unified meter and A/C
amp.
NOTE:
For the wiring diagram, refer to DI-31, "
Wiring Diagram — 3METER —" .
1. CHECK CONNECTOR
Check triple meter, unified meter and A/C amp. and terminals (triple meter side, unified meter and A/C amp.
side, and harness side) for looseness or bent terminals.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK METER/GAUGES VISUALLY
Does the pointer on the meter/gauges fluctuate at the engine start?
Is the fluctuation acceptable?
YES >> GO TO 3.
NO >> GO TO 6.
3. CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: TRIPLE METER)
1. Turn ignition switch OFF.
2. Disconnect triple meter connector and unified meter and A/C amp. connector.
3. Check continuity between triple meter harness connector M44
terminal 4 and unified meter and A/C amp. harness connector
M48 terminal 20.
4. Check continuity between triple meter harness connector M44
terminal 4 (P) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.4 – 20 : Continuity should exist.
4 – Ground : Continuity should not exist.SKIB1172E