INFINITI QX56 2011 Factory Service Manual
Manufacturer: INFINITI, Model Year: 2011, Model line: QX56, Model: INFINITI QX56 2011Pages: 5598, PDF Size: 94.53 MB
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< WIRING DIAGRAM >
WIPER AND WASHER SYSTEM
JCLWM5499GB
Revision: 2010 May2011 QX56
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DIAGNOSIS AND REPAIR WORKFLOWWW-33
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000006300466
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
JPLIA0313GB
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< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
>> GO TO 2.
2.SYMPTOM CHECK
Check the symptom from t he customer's information.
>> GO TO 3.
3.BASIC INSPECTION
Check the operation of each part. Check that any sym ptom occurs other than the interviewed symptom.
>> GO TO 4.
4.SELF-DIAGNOSIS WITH CONSULT-III
Perform the self-diagnosis with CONSULT- III. Check that any DTC is detected.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 6.
5.TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detect ed DTC. Specify the malfunctioning part.
>> GO TO 9.
6.FAIL-SAFE ACTIVATION CHECK
Check that the symptom is applied to the fail-safe activation.
Does the fail-safe activate?
YES >> GO TO 7.
NO >> GO TO 8.
7.SYSTEM DIAGNOSIS
Perform the system diagnosis for the system that the fa il-safe activates. Specify the malfunctioning part.
>> GO TO 9.
8.SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
>> GO TO 9.
9.MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 10.
10.REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self-diagnosis with CONSULT-III. Check t hat any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.
Is any DTC detected?
YES >> GO TO 5.
NO >> GO TO 11.
11 .REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES >> INSPECTION END
NO >> GO TO 3.
Revision: 2010 May2011 QX56
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WIPER AND WASHER FUSEWW-35
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
WIPER AND WASHER FUSE
Diagnosis ProcedureINFOID:0000000006300467
1.CHECK FUSES
Check that the following fuses is not fusing.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace the fuse with a new one after repairing the applicable circuit.
Unit Location No. Capacity
Front wiper motor IPDM E/R 45 30 A
Headlamp washer relay - U 30 A
Washer pump Fuse block (J/B) 1 10 A
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< DTC/CIRCUIT DIAGNOSIS >
FRONT WIPER MOTOR LO CIRCUIT
FRONT WIPER MOTOR LO CIRCUIT
Component Function CheckINFOID:0000000006300468
1.CHECK FRONT WIPER LO OPERATION
CONSULT-III ACTIVE TEST
1. Select “FRONT WIPER” of IPDM E/R active test item.
2. With operating the test item, check front wiper operation.
Is front wiper (LO) operation normally?
YES >> Front wiper motor LO circuit is normal.
NO >> Refer to WW-36, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006300469
1.CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Turn ignition switch ON.
4. Select “FRONT WIPER” of IPDM E/R active test item.
5. With operating the test item, check voltage between front wiper motor harness connector and ground.
Is the inspection result normal?
YES >> Replace front wiper motor.
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTOR (LO) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
4. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness. Lo : Front wiper (LO) operation
Off : Stop the front wiper.
(+)
(− ) Condition Voltage (Approx.)
Front wiper motor
Connector Terminal
E42 1 Ground FRONT WIPER Lo Battery voltage
Off 0 V
IPDM E/R Front wiper motor Continuity
Connector Terminal Connector Terminal
E14 45 E42 1 Existed
IPDM E/R GroundContinuity
Connector Terminal
E14 45 Not existed
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FRONT WIPER MOTOR HI CIRCUITWW-37
< DTC/CIRCUIT DIAGNOSIS >
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FRONT WIPER MOTOR HI CIRCUIT
Component Function CheckINFOID:0000000006300470
1.CHECK FRONT WIPER HI OPERATION
CONSULT-III ACTIVE TEST
1. Select “FRONT WIPER” of IPDM E/R active test item.
2. With operating the test item, check front wiper operation.
Is front wiper (HI) operation normally?
YES >> Front wiper motor HI circuit is normal.
NO >> Refer to WW-37, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006300471
1.CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Turn ignition switch ON.
4. Select “FRONT WIPER” of IPDM E/R active test item.
5. With operating the test item, check voltage between front wiper motor harness connector and ground.
Is the inspection result normal?
YES >> Replace front wiper motor.
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTOR (HI) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
4. Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness. Hi : Front wiper (HI) operation
Off : Stop the front wiper.
(+)
(− ) Condition Voltage (Approx.)
Front wiper motor
Connector Terminal
E42 4 Ground FRONT WIPER Hi Battery voltage
Off 0 V
IPDM E/R Front wiper motor Continuity
Connector Terminal Connector Terminal
E1439E42 4Existed
IPDM E/R GroundContinuity
Connector Terminal
E14 39 Not existed
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< DTC/CIRCUIT DIAGNOSIS >
FRONT WIPER AUTO STOP SIGNAL CIRCUIT
FRONT WIPER AUTO STOP SIGNAL CIRCUIT
Component Function CheckINFOID:0000000006300472
1.CHECK FRONT WIPER (AUTO STOP) SIGNAL
CONSULT-III DATA MONITOR
1. Select “WIP AUTO STOP” of IPDM E/R data monitor item.
2. Operate the front wiper.
3. With the front wiper operation, check the monitor status.
Is the status of item normal?
YES >> Auto stop signal circuit is normal.
NO >> Refer to WW-38, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006300473
1.CHECK IPDM E/R OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Turn ignition switch ON.
4. Check voltage between front wiper motor harness connector and ground.
Is the inspection result normal?
YES >> Replace front wiper motor.
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTO R (AUTO STOP) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
4. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness.
Monitor item Condition Monitor status
WIP AUTO STOP Front wiper motor Stop position STOP P
Except stop position ACT P
(+)
(− ) Voltage (Approx.)
Front wiper motor
Connector Terminal E42 5 Ground Battery voltage
IPDM E/R Front wiper motor Continuity
Connector Terminal Connector Terminal
E13 25 E42 5 Existed
IPDM E/R GroundContinuity
Connector Terminal
E13 25 Not existed
Revision: 2010 May2011 QX56
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FRONT WIPER MOTOR GROUND CIRCUITWW-39
< DTC/CIRCUIT DIAGNOSIS >
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FRONT WIPER MOTOR GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000006300474
1.CHECK FRONT WIPER MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Check continuity between front wiper motor harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair or replace harness.
Front wiper motor
GroundContinuity
Connector Terminal
E42 2 Existed
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< DTC/CIRCUIT DIAGNOSIS >
LIGHT & RAIN SENSOR
LIGHT & RAIN SENSOR
Component Function CheckINFOID:0000000006300475
1.CHECK FRONT WIPER AUTO OPERATION
1. Clean light & rain sensor detection area of windshield fully.
2. When the front wiper switch is turned to AUTO pos ition, front wiper operates once regardless of a rainy
condition.
Is front wiper (AUTO) operation normally?
YES >> Light & rain sensor circuit is normal.
NO >> Refer to WW-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006300476
1.CHECK LIGHT & RAIN SENSOR FUSE
1. Turn the ignition switch OFF.
2. Check that the light & rain sensor 10A fuse (#6) is not fusing.
Is the fuse fusing?
YES >> Replace the fuse after repairing the applicable circuit.
NO >> GO TO 2.
2.CHECK LIGHT & RAIN SENSOR POWER SUPPLY
1. Disconnect light & rain sensor connector.
2. Check voltage between light & rain sensor harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK LIGHT & RAIN SENSOR GROUND CIRCUIT
Check continuity between light & ra in sensor harness connector and ground.
Does continuity exist?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK LIGHT & RAIN SENSOR SIGNAL
1. Connect light & rain sensor connector.
2. Turn ignition switch ON.
3. Check signal between BCM harness connector and ground with oscilloscope.
(+)
(− ) Voltage (Approx.)
Light & rain sensor
Connector Terminal R9 1 Ground Battery voltage
Light & rain sensor GroundContinuity
Connector Terminal
R9 3 Existed
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LIGHT & RAIN SENSORWW-41
< DTC/CIRCUIT DIAGNOSIS >
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Is the measurement value normal?
YES >> Replace light & rain sensor.
NO >> GO TO 5.
5.CHECK LIGHT & RAIN SENSOR SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector and light & rain sensor connector.
3. Check continuity between BCM harness connecto r and light & rain sensor harness connector.
Does continuity exist?
YES >> GO TO 6.
NO >> Repair or replace harness.
6.CHECK LIGHT & RAIN SENSOR SIGNAL CIRCUIT FOR SHORT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
(+)
(− ) Condition Signal
(Reference value)
BCM
Connector Terminal
M68 11 Ground Ignition switch ON Approx. 8.7V
JPMIA0156GB
BCM Light & rain sensorContinuity
Connector Terminal Connector Terminal
M68 11 R9 2 Existed
BCM GroundContinuity
Connector Terminal
M68 11 Not existed
Revision: 2010 May2011 QX56