Infiniti FX35 / FX45. Manual - part 285

COMBINATION METERS

DI-15

< SERVICE INFORMATION >

C

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F

G

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M

A

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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, A/T indicator and ICC system display illuminates, and simulta-
neously 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-III Function (METER/M&A)

INFOID:0000000001328441

Refer to 

DI-27, "CONSULT-III Function (METER/M&A)"

 in “UNIFIED METER AND A/C AMP”.

Trouble Diagnosis

INFOID:0000000001328442

HOW TO PERFORM TROUBLE DIAGNOSIS

1.

Confirm the symptom or customer complaint.

2.

Perform preliminary check. Refer to "PRELIMINARY CHECK".

3.

According to the symptom chart, repair or replace the cause of the symptom. Refer to 

DI-16, "Symptom

Chart"

.

4.

Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.

5.

INSPECTION END

PRELIMINARY CHECK

1.

CHECK OPERATION OF SELF-DIAGNOSIS MODE (COMBINATION METER)

SKIA4817E

SKIA6170E

SKIA4831E

DI-16

< SERVICE INFORMATION >

COMBINATION METERS

Perform self-diagnosis mode of combination meter. Refer to 

DI-14, "Self-Diagnosis Mode of Combination

Meter"

.

Does self-diagnosis function operate?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)

Perform self-diagnosis of unified meter and A/C amp. Refer to 

DI-27, "CONSULT-III Function (METER/M&A)"

.

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-16, "Power Supply and Ground Cir-

cuit Inspection"

.

OK or NG

OK

>> Check odo/trip meter switch. Refer to 

DI-21, "Odo/Trip Meter and Illumination Control Switch

Inspection"

.

NG

>> Repair malfunctioning part.

Symptom Chart

INFOID:0000000001328443

Power Supply and Ground Circuit Inspection

INFOID:0000000001328444

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, "Schematic"

.

2.

CHECK POWER SUPPLY CIRCUIT

Symptom

Possible cause

Speedometer and odo/trip meter indication is malfunctioning.

Refer to 

DI-17, "Vehicle Speed Signal Inspection"

.

Tachometer indication is malfunctioning.

Refer to 

DI-18, "Engine Speed Signal Inspection"

.

Water temperature gauge indication is malfunctioning.

Refer to 

DI-19, "Engine Coolant Temperature Signal Inspection"

.

Fuel gauge indication is malfunctioning.

Refer to 

DI-19, "Fuel Level Sensor Signal Inspection"

.

Low-fuel warning lamp indication is irregular.

A/T indicator is malfunctioning.

Refer to 

DI-49, "A/T Indicator Is Malfunction"

.

Illumination control does not operate.

Refer to 

DI-21, "Odo/Trip Meter and Illumination Control Switch In-

spection"

.

Power source

Fuse No.

Battery power supply

19

ACC power supply

6

Ignition power supply

14

COMBINATION METERS

DI-17

< SERVICE INFORMATION >

C

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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.

Vehicle Speed Signal Inspection

INFOID:0000000001328445

Symptom: Speedometer and odo/trip meter indication is malfunction.

1.

CHECK COMBINATION METER INPUT SIGNAL

1.

Connect CONSULT-III, and start engine.

2.

Select “METER /M&A” on CONSULT-III.

3.

Using “SPEED METER” on “Data Monitor”, compare the value of “Data Monitor” with speedometer pointer
of combination meter.

OK or NG

OK

>> Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to 

BRC-26, "CON-

SULT-III Functions (ABS)"

.

NG

>> GO TO 2.

2.

CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL 

1.

Drive vehicle at approximately 40 km/h (25 MPH).

Terminals

Ignition switch position

(+)

(–)

OFF

ACC

ON

Connector

Terminal

M20

4

Ground

0 V

Battery 
voltage

Battery 
voltage

7

0  V

0  V

Battery 
voltage

8

Battery 
voltage

Battery 
voltage

Battery 
voltage

SKIB8525E

5 – Ground

: Continuity should exist.

6 – Ground

15 – Ground

SKIB8526E

DI-18

< SERVICE INFORMATION >

COMBINATION METERS

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-32,

"Removal and Installation of Unified Meter and A/C Amp"

.

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

INFOID:0000000001328446

Symptom: Tachometer indication is malfunction.

1.

CHECK COMBINATION METER INPUT SIGNAL

1.

Connect CONSULT-III, and start engine.

2.

Select “METER/M&A” on CONSULT-III.

3.

Using “TACHO METER” on “Data Monitor”, compare the value of “Data Monitor” with tachometer pointer
of combination meter. 

OK or NG

OK

>> GO TO 2.

NG

>> Replace combination meter.

2.

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

Select “Data Monitor” of CONSULT-III to compare values between “ ENG SPEED” of “ENGINE” and “TACHO
METER” of “METER/M&A”.
OK or NG

OK

>> Perform self-diagnosis of ECM. Refer to 

EC-117, "CONSULT-III Function (ENGINE)"

 (VQ35DE)

or 

EC-695, "CONSULT-III Function (ENGINE)"

 (VK45DE).

NG

>> Replace unified meter and A/C amp. Refer to 

DI-32, "Removal and Installation of Unified Meter

and A/C Amp"

.

26 – Ground:

NOTE:
Maximum voltage may be 5 V due to 
specifications (connected units).

SKIB0338E

PKIA1935E

1 – 26

: Continuity should exist.

SKIB0343E