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FRONT WIPER AND WASHER SYSTEM
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- Front washer switch OFF
BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication so that the front
wiper operate once three seconds after front wiper operation linked with washer.
IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
FRONT WIPER FAIL−SAFE OPERATION
IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
WW-52, "
FailSafe".
BCM performs fail-safe operation when light and rain sensor (if equipped) or light and rain sensor-related
systems are malfunctioning. Refer to EXL-55, "
Description".
Component Parts LocationINFOID:0000000001366594
1. IPDM E/R E45, E46, E48 2. BCM M18, M20 (view withglove box
removed)3. Front wiper motor (LHD) E1 (view
with cowl top cover removed)
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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.
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REAR WIPER AND WASHER SYSTEM
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REAR WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000001366596
System DescriptionINFOID:0000000001366597
OUTLINE
The rear wiper is controlled by each function of BCM.
Control by BCM Combination switch reading function
Rear wiper control function
REAR WIPER BASIC OPERATION
BCM detects the combination switch condition by the combination switch reading function.
BCM controls the rear wiper to start or stop.
REAR WIPER ON OPERATION
BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.
Rear wiper ON operating condition
- Ignition switch ON
- Rear wiper switch ON
REAR WIPER INT OPERATION LINKED WITH VEHICLE SPEED
BCM supplies power to the rear wiper motor according to the INT operating condition.
Rear wiper INT operating condition- Ignition switch ON
- Rear wiper switch INT
BCM controls the rear wiper to operate once.
BCM detects the rear wiper motor stopping position.
BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.
REAR WIPER AUTO STOP OPERATION
BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
ALLIA0271GB
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REAR WIPER AND WASHER SYSTEM
BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear
wiper motor until it returns to the stopping position.
NOTE:
BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.
REAR WIPER OPERATION LINKED WITH WASHER
BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear
wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three
times.
Washer linked operating condition of rear wiper- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
Washer pump becomes grounded through the combination switch when the rear washer switch is turned
ON.
REAR WIPER DROP WIPE OPERATION
BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.
Rear wiper drop wipe operating condition
- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer
interlocking operation of the rear wiper.
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REAR WIPER AND WASHER SYSTEM
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Component Parts LocationINFOID:0000000001366598
Component DescriptionINFOID:0000000001366599
1. Combination switch (wiper and wash-
er switch) M282. BCM M18, M20 (view with glove box
removed)3. Front and rear washer motor E2
(view with front bumper fascia re-
moved)
4. Rear wiper motor D404 Front
ALLIA0272ZZ
Part Description
BCM Judges each switch status by the combination switch reading function.
Supplies power to the rear wiper motor.
Performs the auto stop control of the rear wiper.
Combination switch
(Wiper and washer switch)Refer to WW-9, "
System Diagram".
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HEADLAMP WASHER SYSTEM
HEADLAMP WASHER SYSTEM
System DiagramINFOID:0000000001366600
System DescriptionINFOID:0000000001366601
OUTLINE
The headlamp washer is controlled by each function of BCM and IPDM E/R.
Control by BCM Combination switch reading function
Headlamp washer control function
Control by IPDM E/R Relay control function
HEADLAMP WASHER BASIC OPERATION
BCM detects the combination switch condition by the combination switch reading function.
BCM transmits the headlamp washer request signal to IPDM E/R with CAN communication depending on
each operating condition of the headlamp washer.
Operating conditions (The first time)
- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at first time.
Operating conditions (From the second time)- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at fifth time after the first time.
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HEADLAMP WASHER SYSTEM
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IPDM E/R turns ON/OFF the headlamp washer relay by receiving the headlamp washer request signal, and
controls the headlamp washer twice.
Component Parts LocationINFOID:0000000001366602
Component DescriptionINFOID:0000000001366603
1. IPDM E/R E45, E46, E48 2. BCM M18, M20 (view with glove box
removed)3. Headlamp washer motor E35 (view
with front bumper fascia removed)
4. Combination switch (headlamp
switch) M285. Combination switch (wiper and wash-
er switch) M28
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Part Description
BCM Judges each switch status by the combination switch reading function.
Requests (with CAN communication) the headlamp washer relay ON to IPDM E/R.
IPDM E/RControls the headlamp washer relay according to the request (with CAN communica-
tion) from BCM.
Combination switch
(Wiper and washer switch)Refer to WW-12, "
System Diagram".
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< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000001366604
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000001366605
WORK SUPPORT
*:Factory setting
DATA MONITOR
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-54, "
DTCIndex".
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION Enables to read and save the vehicle specification.
Enables to write the vehicle specification when replacing BCM.
System Sub system selection itemDiagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
—BCM×
Exterior lamp HEAD LAMP×××
Wiper and washer WIPER×××
Combination switch COMB SW×
Back door switch DOOR LOCK××
Service itemSetting
itemDescription
WIPER SPEED
SETTINGON*With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wiper intermittent dial position)
OFFWithout vehicle speed
(Front wiper intermittent time linked with the wiper intermittent dial position)
Monitor Item
[Unit]Description
IGN ON SW Ignition switch ON status judged from ignition power supply.
IGN SW CAN Ignition switch ON status received from IPDM E/R with CAN communication.