Infiniti QX56 (Z62). Manual — part 956
MWI-78
< SYMPTOM DIAGNOSIS >
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000006221763
The oil pressure warning lamp stays off when the ignition switch is turned ON.
Diagnosis Procedure
INFOID:0000000006221764
1.
CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to
PCS-10, "Diagnosis Description"
Is oil pressure warning lamp blinking?
YES
>> GO TO 2.
NO
>> GO TO 4.
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
Perform a unit check for the oil pressure switch. Refer to
MWI-71, "Component Inspection"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-32, "Removal and Installation"
NO
>> Replace oil pressure switch. Refer to
EM-58, "Removal and Installation"
.
4.
CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT-III and perform an input signal check for the combination meter. Refer to
.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-85, "Removal and Installation"
NO
>> Replace IPDM E/R. Refer to
MWI
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
MWI-79
< SYMPTOM DIAGNOSIS >
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
Description
INFOID:0000000006221765
The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).
Diagnosis Procedure
INFOID:0000000006221766
1.
CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to
PCS-10, "Diagnosis Description"
Is oil pressure warning lamp blinking?
YES
>> GO TO 2.
NO
>> GO TO 5.
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 connector terminal 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-71, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-32, "Removal and Installation"
.
NO
>> Replace oil pressure switch. Refer to
EM-58, "Removal and Installation"
.
4.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT-III and perform an input signal check for the combination meter. Refer to
.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-85, "Removal and Installation"
NO
>> Replace IPDM E/R. Refer to
PCS-32, "Removal and Installation"
.
Terminals
Voltage
(Approx.)
(+)
(
−
)
Oil pressure switch
Ground
Connector
Terminal
E206
1
12 V
MWI-80
< SYMPTOM DIAGNOSIS >
THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING, OR
DOES NOT DISPLAY
THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING,
OR DOES NOT DISPLAY
Description
INFOID:0000000006221767
• The parking brake warning is displayed during vehicle travel even though the parking brake is released.
• The parking brake warning is not displayed even though driving the vehicle with the parking brake applied.
Diagnosis Procedure
INFOID:0000000006221768
1.
CHECK PARKING BRAKE WARNING LAMP OPERATION
1.
Start engine.
2.
Check the operation of the brake warning lamp when operating the parking brake.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-85, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Check the parking brake switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK PARKING BRAKE SWITCH UNIT
Perform a unit check for the parking brake switch. Refer to
BRC-118, "Component Inspection"
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-85, "Removal and Installation"
NO
>> Replace parking brake switch. Refer to
.
Condition
Warning lamp status
Parking brake applied
ON
Parking brake released
OFF
MWI
THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR DOES
NOT DISPLAY
MWI-81
< SYMPTOM DIAGNOSIS >
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THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR
DOES NOT DISPLAY
Description
INFOID:0000000006221769
• The warning is still displayed even after washer fluid is added.
• The warning is not displayed even though the washer tank is empty.
Diagnosis Procedure
INFOID:0000000006221770
1.
CHECK WASHER LEVEL SWITCH SIGNAL CIRCUIT
Check the washer level switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK WASHER LEVEL SWITCH UNIT
Perform a unit check for the washer level switch. Refer to
MWI-73, "Component Inspection"
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-85, "Removal and Installation"
NO
>> Replace washer level switch. Refer to
WW-62, "Removal and Installation"
.
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