200 INFINITI QX56 2009 Factory Service Manual

DIAGNOSIS SYSTEM (IPDM E/R)WW-17
< FUNCTION DIAGNOSIS >
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EXTERNAL LAMPS OFF
OFF
TAIL Operates the tail lamp relay.
LO Operates the headlamp low relay.
HI Operates the headlamp low relay and the headlamp high LH/RH relays at 1 sec-
ond intervals.
FOG Operates the front fog lamp relay
HORN ONOperates horn relay for 20 ms.
Test item
Operation Description
Revision: December 20092009 QX56

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< COMPONENT DIAGNOSIS >
WIPER AND WASHER FUSE
COMPONENT DIAGNOSIS
WIPER AND WASHER FUSE
DescriptionINFOID:0000000003776288
Fuse list
Diagnosis ProcedureINFOID:0000000003776289
1. CHECK FUSES
Check that the following fuses are not blown.
Is the fuse blown?
YES >> Replace the fuse after repairing the applicable circuit.
NO >> The fuse is normal.
Unit LocationFuse No. Capacity
Front wiper motor IPDM E/R3930 A
Front and rear washer motor Fuse block (J/B)910 A
Unit LocationFuse No. Capacity
Front wiper motor IPDM E/R3930 A
Front and rear washer motor Fuse block (J/B)910 A
Revision: December 20092009 QX56

FRONT WIPER MOTOR LO CIRCUITWW-19
< COMPONENT DIAGNOSIS >
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FRONT WIPER MOTOR LO CIRCUIT
Component Function CheckINFOID:0000000003776290
1. CHECK FRONT WIPER LO OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to PCS-12, "
Diagnosis Description".
2. Check that the front wiper operates at the LO operation.
CONSULT-III ACTIVE TEST
1. Select "FRONT WIPER" of IPDM E/R active test item.
2. While operating the test item, check front wiper operation.
Is front wiper (LO) operation normal?
YES >> Front wiper motor LO circuit is normal.
NO >> Refer to WW-19, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003776291
1. CHECK FRONT WIPER MOTOR FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not blown.
Is the fuse blown?
YES >> GO TO 2
NO >> GO TO 3
2. CHECK FRONT WIPER MOTOR (LO) SHORT CIRCUIT
1. Disconnect IPDM E/R and front wiper motor.
2. Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace the fuse. (Replace IPDM E/R if the fuse is blown again.)
3. CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST LO : Front wiper (LO) operation
OFF : Stop the front wiper.
Unit Location Fuse No. Capacity
Front wiper motor IPDM E/R39 30 A
IPDM E/R
GroundContinuity
Connector Terminal
E121 32 No
ALLIA0447ZZ
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< COMPONENT DIAGNOSIS >
FRONT WIPER MOTOR LO CIRCUIT
1. Turn the ignition switch ON.
2. Select "FRONT WIPER" of IPDM E/R active test item.
3. While operating the test item, check voltage between IPDM E/Rharness connector and ground.
Is the measurement value normal?
YES >> GO TO 4
NO >> Replace IPDM E/R. Refer to PCS-34, "
Removal and Installation of IPDM E/R".
4. CHECK FRONT WIPER MOTOR (LO) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
Does continuity exist?
YES >> Replace front wiper motor. Refer to WW-75, "Wiper
Motor and Linkage".
NO >> Repair or replace harness.
Te r m i n a l s Te s t i t e m
Voltage
(Approx.)
(+)
(-)
IPDM E/R
GroundFRONT WIPER
Connector Terminal
E121 32 LO
Battery
voltage
OFF 0V
WKIA3759E
IPDM E/R Front wiper motor
Continuity
Connector Terminal Connector Terminal
E121 32 E233Yes
WKIA2830E
Revision: December 20092009 QX56

FRONT WIPER MOTOR HI CIRCUITWW-21
< COMPONENT DIAGNOSIS >
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FRONT WIPER MOTOR HI CIRCUIT
Component Function CheckINFOID:0000000003776292
1. CHECK FRONT WIPER HI OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to PCS-12, "
Diagnosis Description".
2. Check that the front wiper operates at the HI operation.
CONSULT-III ACTIVE TEST
1. Select "FRONT WIPER" of IPDM E/R active test item.
2. While operating the test item, check front wiper operation.
Is front wiper (HI) operation normal?
YES >> Front wiper motor HI circuit is normal.
NO >> Refer to WW-21, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003776293
1. CHECK FRONT WIPER MOTOR FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not blown.
Is the fuse blown?
YES >> GO TO 2
NO >> GO TO 3
2. CHECK FRONT WIPER MOTOR (HI) SHORT CIRCUIT
1. Disconnect IPDM E/R and front wiper motor.
2. Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace the fuse. (Replace IPDM E/R if the fuse is blown again.)
3. CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST HI : Front wiper (HI) operation
OFF : Stop the front wiper.
Unit Location Fuse No. Capacity
Front wiper motor IPDM E/R39 30 A
IPDM E/R
GroundContinuity
Connector Terminal
E121 35 No
ALLIA0448ZZ
Revision: December 20092009 QX56

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< COMPONENT DIAGNOSIS >
FRONT WIPER MOTOR HI CIRCUIT
1. Turn the ignition switch ON.
2. Select "FRONT WIPER" of IPDM E/R active test item.
3. While operating the test item, check voltage between IPDM E/Rharness connector and ground.
Is the measurement value normal?
YES >> GO TO 4
NO >> Replace IPDM E/R. Refer to PCS-34, "
Removal and Installation of IPDM E/R".
4. CHECK FRONT WIPER MOTOR (HI) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.
Does continuity exist?
YES >> Replace front wiper motor. Refer to WW-75, "Wiper
Motor and Linkage".
NO >> Repair or replace harness.
Te r m i n a l s Te s t i t e m
Voltage
(Approx.)
(+)
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IPDM E/R
GroundFRONT WIPER
Connector Terminal
E121 35 HI
Battery
voltage
OFF 0 V
WKIA3760E
IPDM E/R Front wiper motor
Continuity
Connector Terminal Connector Terminal
E121 35 E232Yes
WKIA2852E
Revision: December 20092009 QX56

FRONT WIPER AUTO STOP SIGNAL CIRCUITWW-23
< COMPONENT DIAGNOSIS >
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FRONT WIPER AUTO ST OP SIGNAL CIRCUIT
Component Function CheckINFOID:0000000003776294
1. CHECK FRONT WIPER (AUTO STOP) SIGNAL CHECK
CONSULT-III DATA MONITOR
1. Select "FR WIPER STOP" of IPDM E/R data monitor item.
2. Operate the front wiper.
3. Check that "FR WIPER STOP" changes to "ON" and "OFF" linked with the wiper operation.
Is the status of item normal?
YES >> Front wiper auto stop signal circuit is normal.
NO >> Refer to WW-23, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003776295
1. CHECK FRONT WIPER MOTOR (A UTO STOP) OUTPUT VOLTAGE
1. Turn the ignition switch ON.
2. Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> GO TO 2
2. CHECK FRONT WIPER MOTOR (AUTO STOP) SHORT CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R and front wiper motor.
3. Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace IPDM E/R. Refer to PCS-34, "
Removal and Installation of IPDM E/R".
3. CHECK FRONT WIPER MOTOR (AUTO STOP) CIRCUIT CONTINUITY
Monitor item ConditionMonitor status
FR WIPER STOP Front wiper motor Stop position
ON
Except stop position OFF
Te r m i n a l s
Voltage
(Approx.)
(+)
(-)
IPDM E/R Ground
Connector Terminal
E122 43 Battery voltage
WKIA1431E
IPDM E/R
GroundContinuity
Connector Terminal
E122 43 No
WKIA1429E
Revision: December 20092009 QX56

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< COMPONENT DIAGNOSIS >
FRONT WIPER AUTO STOP SIGNAL CIRCUIT
Check continuity between IPDM E/R harness connector and front
wiper motor harness connector.
Does continuity exist?
YES >> Replace front wiper motor. Refer to WW-75, "Wiper
Motor and Linkage".
NO >> Repair or replace harness.
IPDM E/R Front wiper motor
Continuity
Connector Terminal Connector Terminal
E122 43 E236Yes
WKIA2829E
Revision: December 20092009 QX56

FRONT WIPER MOTOR GROUND CIRCUITWW-25
< COMPONENT DIAGNOSIS >
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FRONT WIPER MOTOR GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000003776296
1. CHECK FRONT WIPER MOTO R (GROUND) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect front wiper motor.
3. Check continuity between front wiper motor harness connector and ground.
Does continuity exist?
YES >> Front wiper motor ground circuit is normal.
NO >> Repair or replace harness.
Front wiper motor GroundContinuity
Connector Terminal
E23 1 Yes
WKIA2828E
Revision: December 20092009 QX56

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< COMPONENT DIAGNOSIS >
WASHER SWITCH
WASHER SWITCH
DescriptionINFOID:0000000003776297
• Washer switch is integrated with combination switch.
• Combination switch switches polarity between front washer operating and rear washer operating to supply
power to the front and rear washer motor on ground.
Component InspectionINFOID:0000000003776298
1. CHECK FRONT WASHER SWITCH
1. Turn the ignition switch OFF.
2. Disconnect combination switch.
3. Check continuity between the combination switch terminals.
Does continuity exist?
YES >> GO TO 2.
NO >> Replace combination switch. Refer to WW-80, "
Wiper and Washer Switch".
2. CHECK REAR WASHER SWITCH
ALLIA0350GB
A: Terminal 14
B: Terminal 12
C: Terminal 13
D: Terminal 11
ALLIA0839ZZJPLIA0164GB
Combination switch ConditionContinuity
Te r m i n a l
11 1 2
Front washer switch ON Yes
13 14
Revision: December 20092009 QX56