Rear Wiper and Washer System

System Description
- Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals. Terminal combination status is read by BCM when switch is turned ON.
- BCM controls rear wiper ON and INT (intermittent) operation.

Power supplied all time
- through 50 A fusible link (letter M, located in fusible link box.)
- to BCM terminal 55
- through 15 A fuse [No. 22, located in fuse block (J/B)]
- to BCM terminal 42.

When ignition switch ON or START position, power is supplied
- through 15 A fuse [No.1, located in fuse block (J/B)]
- to BCM terminal 38,
- through 10 A fuse [No. 84, located in IPDM E/R (intelligent power distribution module engine room)]
- to rear washer motor terminal 1.

Ground is supplied
- to BCM terminals 49 and 52
- through body grounds M35, M45 and M85
- to combination switch (wiper switch) terminal 12
- through body grounds M35, M45 and M85.

REAR WIPER OPERATION
When wiper switch is in rear wiper ON position, BCM detects rear wiper ON signal by BCM wiper switch reading function.
BCM operates rear wiper motor, power is supplied
- through BCM terminal 70
- to rear wiper motor 4.

Ground is supplied
- to rear wiper motor terminal 2
- through body grounds B15 and B45.

With power and ground supplied, the rear wiper operates.

INTERMITTENT OPERATION
The rear wiper motor operates the wiper arms at low speed approximately every 7 seconds.
When wiper switch is in rear wiper INT position, BCM detects rear wiper INT signal by BCM wiper switch reading function (Refer to "COMBINATION SWITCH READING FUNCTION" )
BCM operates rear wiper motor, power supplied
- through BCM terminal 70
- to rear wiper motor terminal 4.

Ground is supplied
- to rear wiper motor terminal 2
- through body grounds B15 and B45.

With power and ground supplied, rear wiper operates at intermittent.

AUTO STOP OPERATION
With rear wiper switch turned OFF, rear wiper motor will continue to operate until wiper arm reaches rear wiper stopper.
Then wiper motor turns the other way and wiper arm moves once until wiper arm reaches stopper.

WASHER OPERATION
When wiper switch is in rear wiper washer position, BCM detects rear wiper washer signal by BCM wiper switch reading function (Refer to "COMBINATION SWITCH READING FUNCTION" ), and combination switch (wiper switch) ground is supplied
- to rear washer motor terminal 2
- through combination switch (wiper switch) terminal 13
- to combination switch (wiper switch) terminal 12
- through body grounds M35, M45 and M85.

With ground supplied, rear washer motor is operated.
When BCM detects that rear washer motor has operated for. 0.4 seconds or linger, BCM operates rear wiper motor low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 3 times and then stops.

BCM WIPER SWITCH READING FUNCTION
Refer to "COMBINATION SWITCH READING FUNCTION" in BODY CONTROL SYSTEM REAR WIPER AND WASHER SYSTEM