2006 INFINITI M35 turn signal

COMBINATION METERS
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Revision: 2006 January2006 M35/M45
FA I L - S A F E
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunc-
tion.
Solution for communication error between the unified meter & A/C amp. and combination meter
Function Specifications
Speedometer
Reset to zero by suspending communication. Tachometer
Fuel gauge
Water temperature gauge
Illumination control Meter illumination When suspending communication, change to nighttime mode.
Dot matrix LCDPush engine starter
The display turns off by suspending communication. A/T position
ICC system
Buzzer The buzzer turns off by suspending communication.
Warning lamp/indicator lampABS warning lamp
The lamp turns on by suspending communication. Brake warning lamp
CRUISE warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
A/T CHECK warning lamp
The lamp turns off by suspending communication. AWD warning lamp
Oil pressure warning lamp
Door warning lamp
Malfunction indicator lamp
CRUISE indicator lamp
SET indicator lamp
Low tire pressure warning lamp
AFS OFF indicator lamp
Front fog indicator lamp
High beam indicator
Turn signal indicator lamp
Key warning lamp

COMBINATION METERS
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Revision: 2006 January2006 M35/M45
Terminals and Reference Value for Combination MeterNKS003U0
Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
1LGVehicle speed signal
(8-pulse)ONSpeedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)]NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).
2 L Ignition switch ACC or ON ACC — Battery voltage
9
B Ground ON — 0 V 10
11
12 BR Ignition switch ON or START ON — Battery voltage
13 R/L Illumination (+) ONLighting switch is turned ON. 12 V
Lighting switch is turned OFF. 0 V
14 R/Y Illumination signal input ONLighting switch is turned ON,
and illumination control switch
is operated. When brightness level is
midway
Lighting switch is turned OFF. 0 V
15 RRX communication line (From
unified meter and A/C amp.)ON —
16 GTX communication line (To
unified meter and A/C amp.)ON —
23 W/G Battery power supply OFF — Battery voltage
PKIA1935E
SKIB4733E
SKIA3362E
SKIA3361E

COMBINATION METERS
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Revision: 2006 January2006 M35/M45
3. CHECK CONTINUITY BETWEEN COMBINATION METER AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and
A/C amp. connector.
3. Check continuity between combination meter harness connector
(A) and unified meter and A/C amp. harness connector (B).
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.
Engine Speed Signal Inspection NKS003U8
Symptom: Tachometer indication is malfunction.
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Start engine and select “METER A/C AMP” on CONSULT-II.
2. Using “TACHO METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” to that of tachometer of combination
meter.
Is the value in tachometer almost same as the value in the monitor?
OK >> GO TO 2.
NG >> Replace combination meter. (Perform self-diagnosis of
ECM when the value in the monitor indicates 8191.875
rpm. Then repair or replace the malfunction part.)
2. CHECK ECM OUTPUT SIGNAL
1. Select “ENGINE” on CONSULT-II.
2. Using “ENG SPEED” on “DATA MONITOR”, print out the CON-
SULT-II screen when the engine is idling.
3. Select “METER A/C AMP” on CONSULT-II.
4. Using “TACHO METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” of the idling speed to that of the
“ENG SPEED”.
OK or NG
OK >> Perform self-diagnosis of ECM. Refer to EC-133, "CON-
SULT-II Function (ENGINE)" (for VQ35DE) or EC-846,
"CONSULT-II Function (ENGINE)" (for VK45DE).
NG >> Replace unified meter and A/C amp.
AB
Continuity
Connector Terminal Connector Terminal
M52 1 M64 28 Yes
PKIB7641E
PKIA2090E
SKIA4367E

COMBINATION METERS
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Revision: 2006 January2006 M35/M45
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONITOR”, compare the value
of “DATA MONITOR” to the indication of fuel gauge of combina-
tion meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK FUEL LEVEL SENSOR
1. Turn ignition switch OFF.
2. Check components. Refer to DI-26, "
CHECK FUEL LEVEL SENSOR UNIT" .
OK or NG
OK >> GO TO 3.
NG >> Replace fuel level sensor unit.
3. CHECK FUEL LEVEL SENSOR (SUB) CIRCUIT
1. Disconnect unified meter and A/C amp. connector and fuel level
sensor unit (sub) connector.
2. Check continuity between unified meter and A/C amp. harness
connector (A) and fuel level sensor unit (sub) harness connector
(B).
3. Check continuity between unified meter and A/C amp. harness
connector (A) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 74
Three quarters Approx. 61
Half Approx. 42
A quarter Approx. 22
Empty Approx. 8
PKIA2088E
AB
Continuity
Connector Terminal Connector Terminal
M65 42 B52 1 Yes
A
GroundContinuity
Connector Terminal
M65 42 No
PKIB7642E

DI-28
UNIFIED METER AND A/C AMP
Revision: 2006 January2006 M35/M45
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS003UG
For the unified meter and A/C amp., the signal required for controlling the combination meter are integrated in
the A/C auto amp.
COMBINATION METER CONTROL FUNCTION
Unified meter and A/C amp. inputs necessary information for combination meter from each unit with CAN
communication and so on.
Unified meter and A/C amp. outputs signals with communication line (TX, RX) between unified meter and
A/C amp. and combination meter.
Unified meter and A/C amp. corresponds a CONSULT-II function (self-diagnostic results, CAN diagnostic
support monitor and data monitor).
Input/output Signals
Between unified meter and A/C amp. and combination meter.
Unit Input from combination meter Output to combination meter
Unified meter and A/C amp.
Refuel status signal
Low-fuel warning lamp condition signal
Delivery destination data signal
Combination meter receive error signal
Combination meter specifications signal
Odo date signal
Vehicle speed signal
Turn indicator signal
High beam request signal
Ring illumination request signal
Position light request signal
Front fog lamp request signal
SET indicator lamp signal
CRUISE indicator lamp signal
Engine speed signal
Fuel level sensor signal (resistance value)
Engine coolant temperature signal
CAN communication condition signal of A/T
A/T position indicator signal
Manual mode indicator signal
A/T CHECK warning lamp signal
AWD warning lamp signal
Low tire pressure warning lamp signal
VDC OFF indicator lamp signal
SLIP indicator lamp signal
ABS warning lamp signal
Brake warning lamp signal
Malfunction indicator lamp signal
Oil pressure switch signal
Door switch signal
Buzzer request signal
ICC warning lamp signal
Meter display signal
AFS OFF indicator signal

DI-32
UNIFIED METER AND A/C AMP
Revision: 2006 January2006 M35/M45
4. Select “SELF-DIAG RESULTS”, “CAN DIAG SUPPORT MNTR”
or “DATA MONITOR”.
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
NOTE:
“TIME” means the following.
0: Means detected malfunction at present. (From malfunction detection to turning ignition switch OFF)
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”.)
BCIA0031E
SKIA4956E
Display item [Code] Malfunction is detected when...Reference
page
CAN COMM CIRC
[U1000]Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 sec-
onds) or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.DI-36
METER COMM CIRC
[B2202]Malfunction is detected in communication between combination meter and unified meter and
A/C amp.DI-36
VEHICLE SPEED
CIRC
[B2205]When an erroneous speed signal is input for 1 seconds.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misin-
terpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 seconds). DI-36

UNIFIED METER AND A/C AMP
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Revision: 2006 January2006 M35/M45
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG-
NALS” is selected, main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni-
tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit]MAIN
SIGNALSSELECTION
FROM MENUDescription
SPEED METER [km/h] or [mph] X XDisplays the value of vehicle speed signal, which is input from ABS
actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X XDisplays the value of vehicle speed signal, which is transmitted to
each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from ECM.
W TEMP METER [
C] or [F] X XDisplays the value of engine coolant temperature signal, which is
input from ECM.
FUEL METER [lit.] X XDisplays the value, which processes a resistance signal from fuel
gauge.
DISTANCE [km] or [mile] X XDisplays the value, which is calculated by vehicle speed signal from
ABS actuator and electric unit (control unit), fuel gauge and fuel
consumption from ECM.
FUEL W/L [ON/OFF] X X Displays [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Displays [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Displays [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF] X Displays [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Displays [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Displays [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Displays [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Displays [ON/OFF] condition of turn indicator.
FR FOG IND [ON/OFF] X Displays [ON/OFF] condition of front fog indicator.
OIL W/L [ON/OFF] X Displays [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Displays [ON/OFF] condition of VDC/TCS OFF indicator lamp.
ABS W/L [ON/OFF] X Displays [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Displays [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF] X Displays [ON/OFF] condition of brake warning lamp. *
KEY Y/G W/L [ON/OFF] X Displays [ON/OFF] condition of key warning lamp.

DI-38
UNIFIED METER AND A/C AMP
Revision: 2006 January2006 M35/M45
5. CHECK COMMUNICATION SIGNAL (TX: UNIFIED METER AND A/C AMP.)
1. Turn ignition switch OFF.
2. Connect unified meter and A/C amp. connector.
3. Turn ignition switch ON.
4. Check voltage signal between combination meter harness con-
nector and ground.
OK or NG
OK >> GO TO 6.
NG >> Replace unified meter and A/C amp.
6. CHECK UNIFIED METER AND A/C AMP OUTPUT VOLTAGE (RX: UNIFIED METER AND A/C AMP.)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector.
3. Turn ignition switch ON.
4. Check voltage between unified meter and A/C amp. harness
connector and ground.
OK or NG
OK >> GO TO 7.
NG >> Replace unified meter and A/C amp.
Terminals
Voltage (Approx.) (+)
(–)
Combination meter
connectorTerminal
M52 15 Ground
PKIB7650E
SKIA3362E
Terminals
Voltage (Approx.) (+)
(–)
Unified meter and A/C
amp. connectorTerminal
M64 27 Ground 5 V
PKIB7651E