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FRONT WIPER AND WASHER SYSTEM
Component Description
INFOID:0000000001366595
4. Front wiper motor (RHD) E1 (view
with cowl top cover removed5. Front and rear washer motor E2
(view with front bumper fascia re-
moved)6. Combination switch (wiper and wash-
er switch) M28
7. Light and rain sensor R11 (if
equipped) (view with finisher re-
moved)8. Combination meter M24 Front
Part Description
BCM Judges each switch status by the combination switch reading function.
Requests (with CAN communication) the front wiper relay and the front wiper high relay ON to
IPDM E/R.
IPDM E/R Controls the integrated relay according to the request (with CAN communication) from BCM.
Performs the auto stop control of the front wiper.
Combination switch
(Wiper and washer
switch)Refer to WW-4, "
System Diagram".
Combination meter Transmits the vehicle speed signal to BCM with CAN communication.
Light and rain sensor (if
equipped)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.
Page 5829 of 5883
LIGHT & RAIN SENSOR
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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 5857 of 5883

WIPER AND WASHER SYSTEM SYMPTOMS
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Front wiper does not
stop.HI only Combination switch
BCMCombination switch
Refer to BCS-55, "
Symptom
Ta b l e".
Front wiper request signal
BCM
IPDM E/RIPDM E/R DATA MONITOR
"FR WIP REQ"
IPDM E/R —
LO only Combination switch
BCMCombination switch
Refer to BCS-55, "
Symptom
Ta b l e".
Front wiper request signal
BCM
IPDM E/RIPDM E/R DATA MONITOR
"FR WIP REQ"
IPDM E/R —
INT only Combination switch
BCMCombination switch
Refer to XX-XX, "*****"
.
Front wiper request signal
BCM
IPDM E/RIPDM 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
BCMCombination switch
Refer to BCS-55, "
Symptom
Ta b l e".
BCM —
Intermittent control
linked with vehicle
speed cannot be per-
formed.Check the vehicle speed detection wiper setting.
Refer to WW-14, "
WIPER : CONSULT-III Function (BCM - WIPER)".
Wiper is not linked to
the washer operation. Combination switch
Harness between combination switch and BCM
BCMCombination switch
Refer to BCS-55, "
Symptom
Ta b l e".
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 motorFront wiper auto stop signal
circuit
Refer to WW-22, "
Compo-
nent Function Check".
Front wiper auto op-
eration does not op-
erate. (If equipped)Any Light and rain sensor
Harness between combination switch and BCM
BCMLight and rain sensor
Refer to EXL-55, "
Diagnosis
Procedure".
IPDM E/R
Harness between IPDM E/R and front wiper
motor
Front wiper motorIPDM E/R
Refer to xxx.
BCM — Symptom Probable malfunction location Inspection item
Page 5877 of 5883
RAIN SENSOR
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RAIN SENSOR
Exploded ViewINFOID:0000000001366670
Refer to XX-XX, "*****".
Removal and InstallationINFOID:0000000001366671
Refer to XX-XX, "*****".