Infiniti QX56 (JA60). Manual — part 1049
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< SYMPTOM DIAGNOSIS >
WIPER AND WASHER SYSTEM SYMPTOMS
Front wiper does not
stop.
HI only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
"FR WIP REQ"
IPDM E/R
—
LO only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
"FR WIP REQ"
IPDM E/R
—
INT only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
"FR WIP REQ"
Front wiper does not
operate normally.
Intermittent adjustment
cannot be performed.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Intermittent control
linked with vehicle
speed cannot be per-
formed.
Check the vehicle speed detection wiper setting.
Refer to
BCS-23, "WIPER : CONSULT-III Function (BCM - WIPER)"
.
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Does not return to stop
position (Repeatedly
operates for 10 sec-
onds and then stops
for 20 seconds. After
that, it stops the opera-
tion).
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper auto stop signal
circuit
Refer to
.
Rear wiper does not
operate.
ON only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
INT only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
ON and INT
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor
• Glass hatch ajar switch
Combination switch
Refer to
.
Symptom
Probable malfunction location
Inspection item
WIPER AND WASHER SYSTEM SYMPTOMS
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< SYMPTOM DIAGNOSIS >
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Rear wiper does not
stop.
ON only
• Combination switch
• BCM
Rear wiper motor circuit
Refer to
.
INT only
• Combination switch
• BCM
Combination switch
Refer to
Rear wiper does not
operate normally.
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between rear wiper motor and BCM
• BCM
Combination switch
Refer to
BCM
—
Rear wiper does not
return to the Stop posi-
tion (Stops after a five-
second operation).
• BCM
• Harness between rear wiper motor and BCM
• Rear wiper motor
Rear wiper auto stop signal
circuit
Refer to
.
Rear wiper stops after
operating for five sec-
onds when ignition
switch is turned ON.
Symptom
Probable malfunction location
Inspection item
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< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000005146797
FRONT WIPER MOTOR PROTECTION FUNCTION
• IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance)
such as a large amount of snow is detected during the front wiper operation.
• At that time turn OFF the front wiper and remove the foreign object. Then wait for approximately 20 seconds
or more and reactivate the front wiper. The wiper will operate normally.
REAR WIPER MOTOR PROTECTION FUNCTION
• BCM may stop rear wiper to protect the rear wiper motor when the rear wiper is stopped for 5 seconds or
more due to a snowfall.
• Rear wiper operates normally one minute after the obstacles are removed with rear wiper OFF.
FRONT WIPER DOES NOT OPERATE
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< SYMPTOM DIAGNOSIS >
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FRONT WIPER DOES NOT OPERATE
Description
INFOID:0000000005146798
The front wiper does not operate under any operation conditions.
Diagnosis Procedure
INFOID:0000000005146799
Regarding Wiring Diagram information, refer to
.
1.
CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to
2. Check that the front wiper operates at the LO/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 operation normal?
YES
>> GO TO 5
NO
>> GO TO 2
2.
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
>> Replace the fuse after repairing the applicable circuit.
NO
>> GO TO 3
3.
CHECK FRONT WIPER MOTOR GROUND OPEN CIRCUIT
1. Disconnect front wiper motor.
2. Check continuity between front wiper motor harness connector
and ground.
Does continuity exist?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
LO
: Front wiper LO operation
HI
: Front wiper HI operation
OFF
: Stop the front wiper.
Unit
Location
Fuse No.
Capacity
Front wiper motor
IPDM E/R
39
30 A
Front wiper motor
Ground
Continuity
Connector
Terminal
E23
1
Yes
WKIA2828E
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