WW-12
< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
Front Wiper Does Not Operate
INFOID:0000000001704546
CAUTION:
• During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-16, "
System Descrip-
tion" in “PG IPDM E/R” to make sure that it is not in fail-safe status.
1.ACTIVE TEST
With CONSULT-lIl
1. Select “IPDM E/R” on CONSULT-III, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
3. Touch “LO” or “HI” screen.
Without CONSULT-lIl
Start up auto active test. Refer to PG-19, "
Auto Active Test" .
Does front wiper operate normally?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-llI
1. Select “BCM” on CONSULT-III, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “FR WIPER INT”, “FR
WIPER LOW”, and “FR WIPER HI” turn ON-OFF according to wiper switch operation.
Without CONSULT-lIl
Refer to LT-63, "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Check combination switch (wiper switch). Refer to LT-63, "
Combination Switch Inspection" .
3.CHECK CIRCUIT BETWEEN IPDM E/R AND BCM
Select “BCM” on CONSULT-III, and perform self-diagnosis for “BCM”.
Displayed self
-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-18, "Removal and Installation of BCM" .
CAN COMM CIRCUIT>>Check CAN communication line of BCM. Refer to BCS-17, "
CAN Communication
Inspection Using CONSULT-III (Self-Diagnosis)" .
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front wiper motor.
3. Check continuity between front wiper motor connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK FRONT WIPER CIRCUIT
1. Disconnect IPDM E/R.
Test item CONSULT-III screen display Description
Front wiper (HI, LO) output FRONT WIPERWith a certain operation (OFF, HI ON, LO ON), front wiper relay (Lo, Hi)
can be operated.
Front wiper mo-
tor connectorTe r m i n a l
GroundContinuity
E1 2 Yes
WKIA5488E
WW-14
< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
OK >> Replace front wiper motor. Refer to WW-19, "Removal and Installation of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-26, "
Removal and Installation of IPDM E/R" .
Front Wiper Does Not Return to Stop Position (After Front Wiper Operate for 10 Sec-
onds, They Stop for 20 Seconds, and After Repeating the Operation Five Times, They
Become Inoperative)
INFOID:0000000001704547
CAUTION:
• When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wip-
ers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symp-
tom.
• This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROT” item
shows “BLOCK”.
1.CHECK FRONT WIPER STOP SIGNAL
With CONSULT-lIl
Select “IPDM E/R” on CONSULT-III. With “DATA MONITOR”, make sure that “WIP AUTO STOP” turns “ACT
P” - “STOP P” linked with wiper operation.
Without CONSULT-llI
GO TO 2.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R" .
NG >> GO TO 2.
2.CHECK IPDM E/R
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector and ground while
front wiper motor is stopped and while it is operating.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R" .
NG >> GO TO 3.
3.CHECK FRONT WIPER AUTO STOP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and wiper motor.
3. Check continuity between IPDM E/R connector (A) and front
wiper motor connector (B).
4. Check continuity between IPDM E/R harness connector (A) and
ground.
Te r m i n a l
ConditionVo l ta g e
(Approx.) (+)
(-)
IPDM E/R
connectorTe r m i n a l
E46 38 GroundWiper stopped 0V
Wiper operating Battery voltage
WKIA5491E
AB
Continuity
Connector Terminal Connector Terminal
E46 38 E1 4 Yes
A
GroundContinuity
Connector Terminal
E46 38 No
WKIA5492E
