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FRONT WIPER AND WASHER SYSTEM
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FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000003774860
System DescriptionINFOID:0000000003774861
OUTLINE
The front wiper is controlled by each function of BCM and IPDM E/R.
Control by BCM
• Combination switch reading function
Front wiper control function
Control by IPDM E/R
Front wiper control function
Relay control function
FRONT WIPER BASIC OPERATION
BCM detects the combination switch condition by the combination switch reading function.
BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each
operating condition of the front wiper.
IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high relay according to the front
wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.
FRONT WIPER LO OPERATION
BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
front wiper LO operating condition.
Front wiper LO operating condition
- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
FRONT WIPER HI OPERATION
BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the
front wiper HI operating condition.
Front wiper HI operating condition
- Ignition switch ON
- Front wiper switch HI
IPDM E/R turns ON the integrated front wiper relay and the front wiper high relay according to the front wiper
request signal (HI).
FRONT WIPER INT OPERATION (LINKED WITH VEHICLE SPEED)
JSLIA0135GB
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FRONT WIPER AND WASHER SYSTEM
BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment- BCM calculates the intermittent operation delay interval from the following
Vehicle speed signal (received from the combination meter with CAN communication)
Wiper intermittent dial position
IPDM E/R turns the integrated front wiper relay ON so that the front wiper is operated only once according to
the front wiper request signal (INT).
BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop
position signal received from IPDM E/R with CAN communication.
BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval after
the front wiper motor is stopped.
FRONT WIPER AUTO STOP OPERATION
BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
IPDM E/R detects the front wiper stop position signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
Wiper intermittent
dial positionIntermittent
operation
intervalIntermittent operation delay Interval (s)
Vehicle speed
0 – 5 km/h
(0 – 3.1 MPH)5 – 35 km/h
(3.1 – 21.7 MPH)35 – 65 km/h
(21.7 – 40.4 MPH)65 km/h (40.4 MPH)
or more
1
Short
↑
↓
Long0.8 0.6 0.4 0.24
24321.2
3107.553
4161284.8
5 2418127.2
6 3224169.6
7 4231.52112.6
JPLIA0094GB
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FRONT WIPER AND WASHER SYSTEM
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When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper
motor returns to the stop position.
NOTE:
BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.
FRONT WIPER OPERATION LINKED WITH WASHER
BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
washer linked operating condition of the front wiper.
BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times
when the front washer switch OFF is detected.
Washer linked operating condition of front wiper
- Ignition switch ON
- Front washer switch ON (0.4 second or more)
IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
The washer pump is grounded through the combination switch with the front washer switch ON.
FRONT WIPER FAIL−SAFE OPERATION
IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
PCS-31, "
Fail-safe".
JPLIA0410GB
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FRONT WIPER AND WASHER SYSTEM
Component Parts Location
INFOID:0000000003774862
Component DescriptionINFOID:0000000003774863
1. Combination switch 2. Combination meter 3. Washer pump
4. IPDM E/R 5. Front wiper motor 6. BCM
A. Radiator core support (RH) B. Engine room (left side) C. Cowl top, left side of engine room
D. Behind combination meter
JPLIA1146ZZ
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.
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FRONT WIPER AND WASHER SYSTEM
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Combination switch
(Wiper & washer switch)Refer to BCS-8, "System Diagram".
Combination meter Transmits the vehicle speed signal to BCM with CAN communication.Part Description
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HEADLAMP WASHER SYSTEM
HEADLAMP WASHER SYSTEM
System DiagramINFOID:0000000003771163
System DescriptionINFOID:0000000003771164
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.
JPLIA0152GB
JPLIA0177GB
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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:0000000003771165
Component DescriptionINFOID:0000000003771166
1. Combination switch 2. Headlamp washer pump 3. IPDM E/R
4. BCM
A. Radiator core support (RH) B. Engine room (left side) C. Behind combination meter
JPLIA1145ZZ
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/R Controls the integrated relay according to the request (with CAN communication) from BCM.
Combination switch
(Wiper & washer switch)Refer to BCS-8, "
System Diagram".
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DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000003941291
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.
×: Applicable item
NOTE:
*: This item is displayed, but is not used.
FREEZE FRAME DATA (FFD) AND IGN COUNTER
Freeze Frame Data
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM.
CAN Diag Support MonitorMonitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
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 Read and save the vehicle specification.
Write the vehicle specification when replacing BCM.
System Sub system selection itemDiagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK×××
Rear window defogger REAR DEFOGGER××
Warning chime BUZZER××
Interior room lamp timer INT LAMP×××
Exterior lamp HEAD LAMP×××
Wiper and washer WIPER×××
Turn signal and hazard warning lamps FLASHER×××
— AIR CONDITONER*
Intelligent Key system
Engine start systemINTELLIGENT KEY×××
Combination switch COMB SW×
Body control system BCM×
NVIS - NATS IMMU××
Interior room lamp battery saver BATTERY SAVER×××
Trunk lid opener system TRUNK××
Vehicle security system THEFT ALM×××
— RETAINED PWR*×
Signal buffer system SIGNAL BUFFER××
— TPMS (AIR PRESSURE MONITOR)*×××