FRONT WIPER AND WASHER SYSTEM
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FRONT WIPER AND WASHER SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000003533551
System DescriptionINFOID:0000000003533552
• Both front wiper relays are located in the IPDM E/R (intelligent power distribution module engine room).
• The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by the BCM when the wiper switch is turned ON.
• BCM controls front wiper LO, HI, and INT (intermittent) operation.
• IPDM E/R (intelligent power distribution module engine room) operates the wiper motor according to CAN
communication signals from the BCM.
Power is supplied at all times
• through 50A fusible link (letter f, located in the fuse and fusible link box)
• to BCM terminal 70, and
• through 30A fuse (No. 39, located in the IPDM E/R)
• to front wiper relay (located in the IPDM E/R).
With the ignition switch in ON or START position, power is supplied
• through 10A fuse (No. 9, located in the fuse block J/B)
• to combination switch terminal 14, and
• through 10A fuse (No. 59 located in the fuse and relay box)
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67 and
• to combination switch terminal 12
• through grounds M57, M61 and M79, and
• to IPDM E/R terminals 38 and 59 and
• to front wiper motor terminal 1
• through grounds E9, E15, and E24.
WKIA5719E
1. IPDM E/R
E118, E119, E120, E121, E122, E123, E1242. Air cleaner case 3. Front and rear washer motor connector
E105
4. Washer fluid reservoir 5. Front wiper motor
E236. Combination switch (wiper switch) M28
7. BCM M18, M20
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REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000003533570
System DescriptionINFOID:0000000003533571
• The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by the BCM (body control module) when switch is turned ON.
• The BCM controls rear wiper ON and INT (intermittent) operation.
Power is supplied at all times
• through 50A fusible link (letter f, located in fusible link box)
• to BCM terminal 70.
With the ignition switch in ON or START position, power is supplied
• through 10A fuse [No. 9, located in fuse block (J/B)]
• to combination switch terminal 14, and
• through 10A fuse (No. 59, located in the fuse and relay box)
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67 and
• to combination switch terminal 12
• through grounds M57, M61 and M79.
REAR WIPER OPERATION
When the ignition switch is in the ON or START position, and the rear wiper switch is in the ON position, the
BCM detects a rear wiper ON request through the combination switch (wiper switch) reading function.
The BCM will first check the status of the glass hatch ajar switch before supplying power to the rear wiper
motor. If the glass hatch ajar switch is closed (ground) the BCM will not turn on the rear wiper motor. If the
glass hatch ajar switch is open (not grounded) the BCM will control the rear wiper motor as follows.
The BCM controls rear wiper motor operation by switching direction of current flow between the two rear wiper
motor output circuits.
Power is supplied to output circuit 1 for forward operation (counterclockwise sweep),
• through BCM terminal 55
• to rear wiper motor terminal 4.
Ground is supplied
• to rear wiper motor terminal 6
WKIA3462E
