Page 5825 of 5883
FRONT WIPER AUTO STOP SIGNAL CIRCUIT
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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-73, "Removal
and Installation".
NO >> Repair or replace harness.
IPDM E/R Front wiper motor
Continuity
Connector Terminal Connector Terminal
E46 (A) 38 E1 (B) 4 Yes
ALLIA0349ZZ
Page 5826 of 5883
WW-24
< COMPONENT DIAGNOSIS >
FRONT WIPER MOTOR GROUND CIRCUIT
FRONT WIPER MOTOR GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000001366616
1. CHECK FRONT WIPER MOTOR (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
E1 2 Yes
WKIA5488E
Page 5827 of 5883

WASHER SWITCH
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< COMPONENT DIAGNOSIS >
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WASHER SWITCH
DescriptionINFOID:0000000001366617
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:0000000001366618
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 >> Wiper and washer switch is normal.
NO >> Replace combination switch. Refer to EXL-101, "
Removal and Installation".
2. CHECK REAR WASHER SWITCH
1. Turn the ignition switch OFF.
2. Disconnect combination switch.
3. Check continuity between the combination switch terminals.
ALLIA0350GB
A: Terminal 14
B: Terminal 12
C: Terminal 13
D: Terminal 11
ALLIA0351ZZJPLIA0164GB
Combination switch
Condition Continuity
Te r m i n a l
11 1 2
Front washer switch ON Yes
13 14
A: Terminal 14
B: Terminal 12
C: Terminal 13
D: Terminal 11
ALLIA0352ZZJPLIA0164GB
Page 5828 of 5883
WW-26
< COMPONENT DIAGNOSIS >
WASHER SWITCH
Does continuity exist?
YES >> Wiper and washer switch is normal.
NO >> Replace combination switch. Refer to EXL-101, "
Removal and Installation".
Combination switch
Condition Continuity
Te r m i n a l
11 1 4
Rear washer switch ON Yes
12 13
Page 5829 of 5883
LIGHT & RAIN SENSOR
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< COMPONENT DIAGNOSIS >
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LIGHT & RAIN SENSOR
DescriptionINFOID:0000000001366619
Detects water droplets on the windshield with infrared rays, and transmits the rain sensor signal to BCM
through the light and rain sensor serial link.
Diagnosis ProcedureINFOID:0000000001366620
Refer to EXL-55, "Component Function Check".
Page 5830 of 5883

WW-28
< COMPONENT DIAGNOSIS >
REAR WIPER MOTOR CIRCUIT
REAR WIPER MOTOR CIRCUIT
Component Function CheckINFOID:0000000001366621
1. CHECK REAR WIPER ON OPERATION
CONSULT-III ACTIVE TEST
1. Select "RR WIPER" of BCM active test item.
2. While operating the test item, check rear wiper operation.
Is rear wiper operation normal?
YES >> Rear wiper motor circuit is normal.
NO >> Refer to WW-28, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001366622
1. CHECK REAR WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Disconnect rear wiper motor.
3. Turn the ignition switch ON.
4. Select "RR WIPER" of BCM active test item.
5. While operating the test item, check voltage between BCM har-
ness connector and ground.
Is the measurement value normal?
YES >> GO TO 2
NO >> GO TO 3
2. CHECK REAR WIPER MOTOR GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Check continuity between rear wiper motor harness connector
and ground.
Does continuity exist?
YES >> Replace rear wiper motor. Refer to WW-77, "Removal
and Installation".
NO >> Repair or replace harness.
3. CHECK REAR WIPER MOTOR OPEN CIRCUIT ON : Rear wiper ON operation
OFF : Stop the rear wiper.
Te r m i n a l s
Te s t i t e m
Voltage
(Approx.) (+) (−)
BCM
GroundREAR WIPER
Connector Terminal
M20 71ONBattery
voltage
OFF 0V
ALLIA0353ZZ
Rear wiper motor
GroundContinuity
Connector Terminal
D404 3 Yes
WKIA5532E
Page 5831 of 5883
REAR WIPER MOTOR CIRCUIT
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1. Turn the ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between rear wiper motor harness connector
(A) and BCM harness connector (B).
Does continuity exist?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK REAR WIPER MOTOR SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace BCM. Refer to BCS-57, "
Removal and Installa-
tion of BCM".
Rear wiper motor BCM
Continuity
Connector Terminal Connector Terminal
D404 (A) 1 M20 (B) 71 Yes
ALLIA0354ZZ
BCM
GroundContinuity
Connector Terminal
M20 71 No
ALLIA0355ZZ
Page 5832 of 5883

WW-30
< COMPONENT DIAGNOSIS >
REAR WIPER AUTO STOP SIGNAL CIRCUIT
REAR WIPER AUTO STOP SIGNAL CIRCUIT
Component Function CheckINFOID:0000000001366623
1.CHECK REAR WIPER (AUTO STOP) OPERATION
CONSULT-III DATA MONITOR
1. Select "WIPER" of BCM data monitor item.
2. Operate the rear wiper.
3. Check that "RR WIPER STOP" changes to "ON" and "OFF" linked with the wiper operation.
Is the status of item normal?
YES >> Rear wiper auto stop signal circuit is normal.
NO >> Refer to WW-30, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001366624
1. CHECK REAR WIPER MOTOR (AUTO STOP) OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect rear wiper motor.
3. Turn the ignition switch ON.
4. Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> GO TO 2
2. CHECK REAR WIPER MOTOR (AUTO STOP) SHORT CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Repair or replace harness.
NO >> Replace BCM. Refer to BCS-57, "
Removal and Installa-
tion of BCM".
3. CHECK REAR WIPER MOTOR (AUTO STOP) CIRCUIT CONTINUITY
Monitor item Condition Monitor status
RR WIPER STOP Rear wiper motorStop position ON
Except stop position OFF
Te r m i n a l s
Voltage
(Approx.) (+) (−)
BCM
Ground Connector Terminal
M18 23 Battery voltage
ALLIA0356ZZ
BCM
GroundContinuity
Connector Terminal
M18 23 No
ALLIA0357ZZ