Infiniti QX56 (JA60). Manual — part 714
MWI
THE FUEL GAUGE POINTER DOES NOT MOVE
MWI-91
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
THE FUEL GAUGE POINTER DOES NOT MOVE
Description
INFOID:0000000005146115
Fuel gauge needle will not move from a certain position.
Diagnosis Procedure
INFOID:0000000005146116
1.
CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Using “FUEL METER” of “DATA MONITOR”, compare the monitor value with the fuel gauge reading on
the combination meter. Refer to
MWI-32, "Component Function Check"
Does monitor value match fuel gauge reading?
YES
>> GO TO 2
NO
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
2.
CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK FUEL LEVEL SENSOR UNIT
Perform a unit check for the fuel level sensor unit. Refer to
MWI-33, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace fuel level sensor unit. Refer to
FL-7, "Removal and Installation"
.
4.
CHECK FLOAT INTERFERENCE
Check that the float arm does not interfere or bind with any of the components in the fuel tank.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
MWI-92
< SYMPTOM DIAGNOSIS >
THE FUEL GAUGE POINTER DOES NOT MOVE TO "F" WHEN REFUELING
THE FUEL GAUGE POINTER DOES NOT MOVE TO "F" WHEN REFUEL-
ING
Description
INFOID:0000000005146117
The fuel gauge needle will not move to “F” position when refueling.
Diagnosis Procedure
INFOID:0000000005146118
1.
OBSERVE FUEL GAUGE
Does it take a long time for the pointer to move to FULL position?
YES or NO
YES
>> GO TO 2
NO
>> GO TO 3
2.
IDENTIFY FUELING CONDITION
Was the vehicle fueled with the ignition switch ON?
YES or NO
YES
>> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO
>> GO TO 3
3.
OBSERVE VEHICLE POSITION
Is the vehicle parked on an incline?
YES or NO
YES
>> Check the fuel level indication with vehicle on a level surface.
NO
>> GO TO 4
4.
OBSERVE FUEL GAUGE POINTER
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES or NO
YES
>> Check the components. Refer to
MWI-33, "Component Inspection"
NO
>> The float arm may interfere or bind with any of the components in the fuel tank.
MWI
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
MWI-93
< SYMPTOM DIAGNOSIS >
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000005146119
The oil pressure warning lamp stays off when the ignition switch is turned ON.
Diagnosis Procedure
INFOID:0000000005146120
1.
CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to
PCS-12, "Diagnosis Description"
Is oil pressure warning lamp illuminated?
YES
>> GO TO 2
NO
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
2.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK OIL PRESSURE SWITCH UNIT
Perform a unit check for the oil pressure switch. Refer to
MWI-34, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-35, "Removal and Installation of IPDM E/R"
.
NO
>> Replace oil pressure switch.
MWI-94
< SYMPTOM DIAGNOSIS >
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
Description
INFOID:0000000005146121
The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).
Diagnosis Procedure
INFOID:0000000005146122
Regarding Wiring Diagram information, refer to
.
1.
CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to
PCS-12, "Diagnosis Description"
Is oil pressure warning lamp illuminated?
YES
>> GO TO 2
NO
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
2.
CHECK IPDM E/R OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect the oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between the oil pressure switch harness connec-
tor F4 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> GO TO 4
3.
CHECK OIL PRESSURE SWITCH
Perform a unit check for the oil pressure switch. Refer to
MWI-34, "Component Inspection"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-35, "Removal and Installation of IPDM E/R"
.
NO
>> Replace oil pressure switch.
4.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-35, "Removal and Installation of IPDM E/R"
.
NO
>> Repair harness or connector.
1 – Ground
: Approx. 12V
PKIC1144E
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