Nissan Maxima Service and Repair Manual: Rear window defogger system
System Diagram
System Description
Operation Description
- When rear window defogger switch is turned ON while ignition
switch is ON, the A/C auto amp. (rear window
defogger switch) transmits rear window defogger switch signal to BCM.
- BCM turns rear window defogger relay ON when rear window defogger
switch signal is received.
- Rear window defogger and door mirror defogger (with door mirror
defogger) are supplied with power and
operate when rear window defogger relay turns ON.
- Rear window defogger ON is displayed when controller (A/C auto
amp.) receives signals.
Timer function
- BCM turns rear window defogger relay ON for approximately 15
minutes when rear window defogger switch
is turned ON while ignition switch is ON. It makes rear window defogger and
door mirror defogger (with door
mirror defogger) operate.
- Timer is canceled after pressing rear window defogger switch again
during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer
operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
*: With door mirror defogger
Component Parts Location
- BCM M16, M17, M18, M19 (view with
instrument panel removed)
- A. Fuse block (J/B)
B. Rear window defogger relay J-2
- A/C auto amp. (rear window defogger
switch) M37
- Door mirror (door mirror defogger) LH
D4, RH D107 (if equipped)
- A. Rear window defogger B53
B. Condenser B52 (view with rear pillar
finisher LH removed)
- Rear window defogger B54 (view
with rear pillar finisher RH removed)
Component Description
BCM |
- Operates the rear window defogger with the operation of rear
window defogger switch.
- Performs the timer control of rear window defogger.
|
Rear window defogger relay |
- Operates the rear window defogger and the door mirror defogger
with the control signal from
BCM.
|
A/C auto amp. (rear window
defogger switch) |
- The rear window defogger switch is turned ON.
- Turns the indicator lamp ON when detecting the operation
of rear window defogger
|
Rear window defogger |
- Heats the heating wire with the power supply from the rear
window defogger relay to prevent
the rear window from fogging up.
|
Door mirror defogger* |
- Heats the heating wire with the power supply from the rear
window defogger relay to prevent
the door mirror from fogging up.
|
*: With heated mirrors
COMMON ITEM
COMMON ITEM: CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Des ...
Other materials:
Center console assembly
Exploded View
Center console side finisher (LH)
Center console finisher
CVT finisher
Center console storage bin
Center console screw cover (LH)
Center console rear finisher
Center console screw cover (RH)
Center console
Center console lid assembly
Cup holder
Center cons ...
Ignition Coil
Exploded View
Ignition coil
Spark plug
Rocker cover (RH)
Rocker cover (LH)
Removal and Installation (LH)
REMOVAL
Remove engine room cover. Refer to EM-23, "Removal and Installation".
Disconnect ignition coil harness connector.
Remove the ignition coil.
CAUTION: Do not sh ...
Auto light system
Wiring Diagram
...