INFINITI FX35 2006 Service Manual

COMBINATION METERS DI-11
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 December 2006 FX35/FX45
Circuit DiagramNKS002ZF
TKWM4341E

DI-12
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
Wiring Diagram — METER —NKS002ZG
TKWM4342E

COMBINATION METERS DI-13
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 December 2006 FX35/FX45
TKWM4343E

DI-14
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for Combination MeterNKS002ZH
Terminal No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
1G Vehicle speed signal
(8-pulse) ON Speedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).
4 LG ACC power supply ACC — Battery voltage
5 B Ground ON — Approx. 0 V
6
7 G/Y Ignition power supply ON — Battery voltage
8 R/W Battery power supply OFF — Battery voltage
13 L/B TX communication line (To
unified meter and A/C amp.) ON —
14 PU RX communication line (From
unified meter and A/C amp.) ON —
15 B Ground ON — Approx. 0 V
25 — Illumination control switch (–) OFF Illumination control switch (–)
is pressed. Approx. 0 V
Illumination control switch (–)
is released. Approx. 5 V
26 — Illumination control switch (+) OFF Illumination control switch (+)
is pressed. Approx. 0 V
Illumination control switch (+)
is released. Approx. 5 V
27 — Odo/trip meter and illumina-
tion control switch ground OFF — Approx. 0 V
35 — Trip reset switch OFF Trip reset switch is pressed Approx. 0 V
Trip reset switch is released Approx. 5 V
36 — Trip transfer switch OFF Trip transfer switch is pressed Approx. 0 V
Trip transfer switch is released Approx. 5 V
PKIA1935E
SKIA3361E
SKIA3362E

COMBINATION METERS DI-15
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for Unified Meter and A/C Amp.NKS002ZI
Self-Diagnosis Mode of Combination MeterNKS002ZJ
SELF-DIAGNOSIS FUNCTION

Odo/trip meter, shift position indicator and ICC system display segments operation can be checked in self-
diagnosis mode.

Meters/gauges can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1. Turn ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.
NOTE:
If the self-diagnosis function is activated with the “trip A” displayed, only “trip A” display is reset.
2. Turn ignition switch OFF.
Terminal No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
1 L CAN-H — — —
9PU TX communication line (To
combination meter) ON —
11 P C A N - L — — —
19 L/B RX communication line (From
combination meter) ON —
21 R/W Battery power supply OFF — Battery voltage
22 W Ignition power supply ON — Battery voltage
26 G Vehicle speed signal
(8-pulse) ON Speedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due to
specifications (connected units).
28 W/B Fuel level sensor signal — — Refer to
DI-24, "
FUEL LEVEL SEN-
SOR UNIT" .
29 B Ground (For power) ON — Approx. 0 V
30 B Ground ON — Approx. 0 V
36 B/W Fuel level sensor ground ON — Approx. 0 V
46 L/W ACC power supply ACC — Battery voltage
SKIA3362E
SKIA3361E
PKIA1935E

DI-16
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
3. Turn ignition switch ON while pressing trip transfer switch and trip reset switch at the same time.
4. After ignition switch is turned ON, release trip transfer switch and trip reset switch (within 7 seconds after the ignition switch is
turned ON).
5. All the segments on the odo/trip meter, shift position indicator and ICC system display illuminates, and simultaneously the low-fuel warning lamp indicator illuminates. At this time, the unified meter control unit
is turned to self-diagnosis mode.
NOTE:

Check odo/trip meter switch and combination meter power supply and ground circuit when self-diagno-
sis mode of combination meter does not start. Replace combination meter if the results of the check are
normal.

If any of the segments are not displayed, replace combination meter.
6. Each meter/gauge activates during pressing trip reset switch. (Then low-fuel warning lamp turns OFF.)
NOTE:

If any of the meters/gauges are not activated, replace the
combination meter.

The figure is reference.
CONSULT-II Function (METER A/C AMP)NKS002ZK
Refer to DI-31, "CONSULT-II Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
Trouble DiagnosisNKS002ZL
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to DI-17, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom. Refer to DI-17, "
Symptom
Chart" .
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
SKIA4817E
SKIA6170E
SKIA4831E

COMBINATION METERS DI-17
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 December 2006 FX35/FX45
PRELIMINARY CHECK
1. CHECK OPERATION OF SELF-DIAGNOSIS MODE (COMBINATION METER)
Perform self-diagnosis mode of combination meter. Refer to DI-15, "
OPERATION PROCEDURE" .
Does self-diagnosis function operate?
YES >> GO TO 2.
NO >> GO TO 3.
2. CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-31, "
CONSULT-II Function (METER A/C
AMP)" .
Self-diagnosis results
No malfunction detected >> INSPECTION END
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT OF COMBINATION METER
Check power supply and ground circuit of combination meter. Refer to DI-18, "
Power Supply and Ground Cir-
cuit Inspection" .
OK or NG
OK >> Check odo/trip meter switch. Refer to DI-24, "Odo/Trip Meter and Illumination Control Switch
Inspection" .
NG >> Repair malfunctioning part.
Symptom Chart NKS002ZM
Symptom Possible cause
Speedometer and odo/trip meter indication is malfunctioning. Refer to DI-19, "
Vehicle Speed Signal Inspection" .
Tachometer indication is malfunctioning. Refer to DI-20, "
Engine Speed Signal Inspection" .
Water temperature gauge indication is malfunctioning. Refer to DI-21, "
Engine Coolant Temperature Signal Inspection" .
Fuel gauge indication is malfunctioning. Refer to DI-21, "
Fuel Level Sensor Signal Inspection" .
Low-fuel warning lamp indication is irregular.
Shift position indicator is malfunctioning. Refer to DI-55, "
A/T Indicator Is Malfunction" .
Illumination control does not operate. Refer to
DI-24, "
Odo/Trip Meter and Illumination Control Switch
Inspection" .

DI-18
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
Power Supply and Ground Circuit InspectionNKS002ZO
1. CHECK FUSE
Check for blown combination meter fuses.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
POWER
SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter harness connector M20
terminals 4, 7, 8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between combination meter and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector.
3. Check continuity between combination meter harness connector M20 terminals 5, 6, 15 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Power source Fuse No.
Battery power supply 19 ACC power supply 6
Ignition power supply 14
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
M20 4
Ground 0 V
Battery
voltage Battery
voltage
70 V0 V Battery
voltage
8 Battery
voltage Battery
voltage Battery
voltage
SKIB8525E
5 – Ground
: Continuity should exist.
6 – Ground
15 – Ground
SKIB8526E

COMBINATION METERS DI-19
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 December 2006 FX35/FX45
Vehicle Speed Signal InspectionNKS002ZP
Symptom: Speedometer and odo/trip meter indication is malfunction.
1. CHECK COMBINATION METER INPUT SIGNAL
1. Connect CONSULT-II, and start engine.
2. Select “METER A/C AMP” on CONSULT-II.
3. Using “SPEED METER” on “DATA MONITOR”, compare the value of “DATA MONITOR” with speedometer pointer of combi-
nation meter.
OK or NG
OK >> Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to BRC-24, "
CONSULT-II Functions
(VDC)" .
NG >> GO TO 2.
2. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Drive vehicle at approximately 40 km/h (25 MPH).
2. Check voltage signal between unified meter and A/C amp. har- ness connector M56 terminal 26 and ground.
OK or NG
OK >> GO TO 3.
NG-1 >> If monitor indicates “0 V” constantly, perform the following.
1. Check each unit inputting vehicle speed signal (8 pulse), harness and connector between each unit and unified meter and A/C amp.
2. Repair or replace malfunctioning part.
NG-2 >> If monitor indicates “5 V” or “12 V” constantly, replace unified meter and A/C amp. Refer to DI-37,
"Removal and Installation of Unified Meter and A/C Amp." .
SKIB4578E
26 – Ground: NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).
SKIB0338E
PKIA1935E

DI-20
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
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 M20 terminal 1 and unified meter and A/C amp. harness con-
nector M56 terminal 26.
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.
Engine Speed Signal Inspection NKS002ZQ
Symptom: Tachometer indication is malfunction.
1. CHECK COMBINATION METER INPUT SIGNAL
1. Connect CONSULT-II, and start engine.
2. Select “METER A/C AMP” on CONSULT-II.
3. Using “TACHO METER” on “DATA MONITOR”, compare the value of “DATA MONITOR” with tachometer pointer of combina-
tion meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK UNIFIED METER AND A/C AMP. INPUT 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 with that of the
“ENG SPEED”.
OK or NG
OK >> Perform ECM self-diagnosis. Refer to EC-119, "CON-
SULT-II Function (ENGINE)" (VQ35DE) or EC-780,
"CONSULT-II Function (ENGINE)" (VK45DE).
NG >> Replace unified meter and A/C amp. Refer to DI-37,
"Removal and Installation of Unified Meter and A/C Amp." .
1 – 26 : Continuity should exist.
SKIB0343E
PKIA2090E
SKIA4367E