2007 INFINITI QX56 lock

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Page 3045 of 3061

INFINITI QX56 2007 Factory Service Manual WW-28
< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
• through BCM terminal 55
• through BCM terminal 67
• through grounds M57, M61 and M79.
With output circuit 2 power and ground supplied

WW-28
< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
• through BCM terminal 55
• through BCM terminal 67
• through grounds M57, M61 and M79.
With output circuit 2 power and ground supplied the rear wiper motor operates in a clockwise sweep direction
until auto stop switch 2 closes (full sweep position). Auto stop switch 2 supplies ground
• to BCM terminal 26
• through rear wiper motor terminal 1
• through rear wiper motor terminal 3
• through grounds B117 and B132.
When the BCM receives this ground signal it turns off output circuit 2 and starts the timing function of 7 sec-
onds. After approximately 7 seconds the BCM turns on output circuit 1. This process repeats until the rear
wiper switch or ignition switch is turned off.
AUTO STOP OPERATION
When the rear wiper switch is turned off, the BCM will continue the cycle of output circuit 1 or output circuit 2
until auto stop switch 1 and auto stop switch 2 are both in the closed position. When the BCM receives ground
signals from auto stop switch 1 and auto stop switch 2 simultaneously, output circuit 1 and output circuit 2 are
both turned off.
REAR WASHER OPERATION
When the ignition switch is in the ON or START position, and the front and rear washer switches are OFF, the
front and rear washer motor is supplied power
• through 10A fuse (No. 9, located in the fuse block J/B)
• through combination switch (wiper switch) terminal 14
• through combination switch (wiper switch) terminal 11
• to front and rear washer motor terminal 2, and
• through combination switch (wiper switch) terminal 13
• to front and rear washer motor terminal 1.
When the rear wiper switch is in rear washer position, the BCM detects a rear washer signal by BCM wiper
switch reading function. Combination switch ground is supplied
• to front and rear washer motor terminal 1
• through combination switch (wiper switch) terminal 13
• through combination switch (wiper switch) terminal 12
• through grounds M57, M61 and M79.
With ground supplied, the front and rear washer motor is operated in the rear direction.
When the BCM detects that the rear washer motor has operated for 0.4 seconds or longer, BCM operates the
rear wiper motor.
When the BCM detects that the rear washer switch is in OFF, the rear wiper motor cycles approximately 3
times and then stops.
If the rear washer is operated with the rear wiper switch in the INT position, normal rear wiper operation will
take over. Once the rear washer switch is released the rear wiper will return to INT operation.
BCM Wiper Switch Reading Function
Refer to BCS-3, "System Description".

Page 3052 of 3061

INFINITI QX56 2007 Factory Service Manual REAR WIPER AND WASHER SYSTEM
WW-35
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
WW
N
O
P
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make
sure "RR WIPER STOP" and "RR AUTO STOP 2" turn ON

Page 3055 of 3061

INFINITI QX56 2007 Factory Service Manual WW-38
< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
Removal
1. Remove wiper arm. Refer to WW-37, "Rear Wiper Arm".
2. Remove pivot cap.
3. Remove back door lock assembly. Refer to BL-114
.
4. D

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