Infiniti QX56 (JA60). Manual - part 714

MWI

THE FUEL GAUGE POINTER DOES NOT MOVE

MWI-91

< SYMPTOM DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 

MWI-32, "Diagnosis Procedure"

. 

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 >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 

MWI-34, "Diagnosis Procedure"

.

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 

MWI-41, "Wiring Diagram"

.

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 

MWI-34, "Diagnosis Procedure"

.

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