Infiniti M45 (Y34). Manual — part 292
COMBINATION METERS
DI-13
C
D
E
F
G
H
I
J
L
M
A
B
DI
6.
All the segments on the odo/trip meter, A/T indicator and ICC system display illuminate, and simulta-
neously the low-fuel warning lamp indicator illuminate. At this time, the unified control meter is turned to
diagnosis mode.
NOTE:
If any of the segments is not displayed, replace combination meter.
7.
Push the odo/trip meter switch. Indication of each meter/gauge
should be as shown in the right during pushing odo/trip meter
switch if there is no malfunctioning. (at this time, the low-fuel
warning lamp goes off).
How to Proceed with Trouble Diagnosis
AKS002VG
1.
Confirm the symptom or customer complaint.
2.
Perform diagnosis according to diagnosis flow. Refer to
3.
According to the trouble diagnosis chart, repair or replace the cause of the trouble symptom. Refer to
15, "Trouble Diagnosis Chart by Symptom"
4.
Does the meter operate normally? If so, go to 5. If not, go to 2.
5.
Inspection end.
Diagnosis Flow
AKS002VH
1.
CHECK WARNING LAMP ILLUMINATION
Turn ignition switch ON.
Do warning lamps (such as malfunction indicator lamp and oil pressure warning lamp) illuminate?
YES
>> GO TO 2.
NO
>> Check ignition power supply system of combination meter. Refer to
.
2.
CHECK SELF-DIAGNOSIS OPERATION
Perform combination meter self-diagnosis. Refer to
DI-12, "SELF–DIAGNOSIS FUNCTION"
.
Does self-diagnosis function operate?
YES
>> GO TO 3.
NO
>> Check battery power supply of combination meter and ground system. Refer to
Supply and Ground Circuit Inspection"
MKIB0204E
SKIA2097E
DI-14
COMBINATION METERS
3.
CHECK ODO/TRIP METER OPERATION
Check segment display status of odo/trip meter. Refer to
.
Is the display normal?
YES
>> GO TO 4.
NO
>> Replace combination meter.
4.
CHECK FUEL WARNING LAMP ILLUMINATION CONFIRMATION
During fuel warning lamp check, confirm illumination of fuel warning lamp.
OK or NG
OK
>> GO TO 5.
NG
>> Replace combination meter.
5.
CHECK COMBINATION METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode. Refer
to
DI-12, "SELF–DIAGNOSIS FUNCTION"
OK or NG
OK
>> Go to diagnosis results. Refer to
NG
>> Replace combination meter.
Power Supply and Ground Circuit Inspection
AKS002HY
1.
CHECK FUSES
Check that any of the fuses in combination meter is blown.
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to
SEL176W
Condition of odo/trip meter switch
Fuel warning lamp
Pushed
Does not illuminate.
Released
Illuminates.
SKIA2097E
Unit
Power source
Fuse No.
Combination meter
Battery 6
Ignition switch ON or START
9
Ignition switch ACC or ON
21
COMBINATION METERS
DI-15
C
D
E
F
G
H
I
J
L
M
A
B
DI
2.
CHECK POWER SUPPLY CIRCUIT
1.
Disconnect combination meter connector.
2.
Check voltage between combination meter harness connector
terminals and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short between combination meter and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between combination meter harness connector
M41 terminals 20 (B), 33 (B) and ground.
OK or NG
OK
>> Inspection end.
NG
>> Repair harness or connector.
Trouble Diagnosis Chart by Symptom
AKS002VL
DIAGNOSIS RESULTS
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
Connector
Terminal
(Wire color)
M41
28 (L/OR)
Ground
0V
Battery
voltage
Battery
voltage
39 (Y/G)
Battery
voltage
Battery
voltage
Battery
voltage
40 (G)
0V
0V
Battery
voltage
M42
42 (G)
SKIA3422E
Continuity should exist.
SKIA3423E
Trouble phenomenon
Possible cause
Tachometer indication is malfunction.
Refer to
DI-16, "Engine Speed Signal Inspection"
Water temperature gauge indication is malfunction.
Refer to
DI-16, "Water Temperature Signal Inspection"
.
Indication is irregular for the speedometer and odo/trip meter.
Refer to
DI-16, "Vehicle Speed Signal Inspection"
Fuel gauge indication is malfunction.
Refer to
DI-16, "Fuel Level Sensor Signal Inspection"
.
Fuel warning lamp indication is irregular.
Indications are irregular for more than one gauge.
Replace combination meter.
A/T position indicator is malfunction.
Refer to
DI-45, "A/T Indicator Does Not Illuminate"
.
ICC system display does not illuminate.
Refer to
DI-16
COMBINATION METERS
Engine Speed Signal Inspection
AKS002VI
1.
CHECK ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis. Refer to
EC-108, "CONSULT-II Function (ENGINE)"
OK or NG
OK
>> Replace combination meter.
NG
>> Perform “Diagnostic procedure” displayed DTC.
Water Temperature Signal Inspection
AKS002VJ
1.
CHECK ECM SELF-DIAGNOSIS
Preform the ECM self-diagnosis. Refer to
EC-108, "CONSULT-II Function (ENGINE)"
OK or NG
OK
>> Replace combination meter.
NG
>> Perform “Diagnostic procedure” displayed DTC.
Vehicle Speed Signal Inspection
AKS002VK
1.
CHECK VDC/TCS/ABS CONTROL UNIT SELF-DIAGNOSIS
Perform VDC/TCS/ABS control unit self-diagnosis. Refer to
OK or NG
OK
>> Replace combination meter.
NG
>> Perform “Diagnostic procedure” displayed self-diagnosis results.
Fuel Level Sensor Signal Inspection
AKS002I3
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
●
Depending on vehicle posture or driving circumstance, the fuel level in the tank various, and the pointer
may fluctuate.
●
If the vehicle is fueled with the ignition switch ON, the pointer will move slowly.
●
If vehicle is tilted when the ignition switch is turned ON, fuel in the tank may flow to one direction resulting
in a change in the reading.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1.
CHECK HARNESS CONNECTOR
Check combination meter, fuel level sensor unit and terminals (meter-side, module-side, lead-side, and har-
ness-side) for poor connection and bend.
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
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