Nissan Maxima Service and Repair Manual: Power window serial link
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description
- Main power window and door lock/unlock switch, power window and door
lock/unlock switch RH and BCM
communicate via the power window serial link.
- The keyless power window down signal is transmitted from BCM to
main power window and door lock/
unlock switch and power window and door lock/unlock switch RH.
- The following signals are transmitted from main power window and
door lock/unlock switch to power window
and door lock/unlock switch RH:
- Front door window RH operation
- Power window control by key cylinder switch
- Power window lock switch
- Retained accessory power operation
POWER WINDOW MAIN SWITCH : Component Function Check
1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
Check ("CDL LOCK SW ", "CDL UNLOCK SW") in "DATA MONITOR" mode for "POWER
DOOR LOCK SYSTEM"
with CONSULT.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure
1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

- Remove Intelligent Key, and close front door LH and RH.
- Check signal between BCM connector M18 terminal 40 and
ground with oscilloscope when door lock and unlock switch (key
cylinder switch) is turned to "LOCK" or "UNLOCK".
- Check that signals which are shown in the figure below can be
detected during 10 seconds just after door lock and unlock
switch (key cylinder switch) is turned to "LOCK" or "UNLOCK".

2. CHECK POWER WINDOW SERIAL LINK CIRCUIT

- Turn ignition switch OFF.
- Disconnect BCM connector M18 and main power window and
door lock/unlock switch connector D7.
- Check continuity between BCM connector M18 (A) terminal 40
and main power window and door lock/unlock switch connector
D7 (B) terminal 14.
- Check continuity between BCM connector M18 (A) terminal 40 and ground.


POWER WINDOW MAIN SWITCH : Special Repair Requirement
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
2. CHECK ANTI-PINCH OPERATION
Check anti-pinch operation.
FRONT POWER WINDOW SWITCH
FRONT POWER WINDOW SWITCH : Description
- Main power window and door lock/unlock switch, power window and door
lock/unlock switch RH and BCM
communicate via the power window serial link
- The keyless power window down signal is transmitted from BCM to
main power window and door lock/
unlock switch and power window and door lock/unlock switch RH.
- The following signals are transmitted from main power window and door
lock/unlock switch to power window
and door lock/unlock switch RH:
- Front door window RH operation
- Power window control by key cylinder switch
- Power window lock switch
- Retained accessory power operation
FRONT POWER WINDOW SWITCH : Diagnosis Procedure
1. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH

- Remove Intelligent Key, and close the front door LH and RH.
- Check signal between BCM connector M18 terminal 40 and
ground with oscilloscope when door lock and unlock switch (key
cylinder switch) is turned to "LOCK" or "UNLOCK".
- Check that signals which are shown in the figure below can be
detected during 10 seconds just after door lock and unlock
switch (key cylinder switch) is turned to "LOCK" or "UNLOCK".

2. CHECK POWER WINDOW SERIAL LINK CIRCUIT

- Turn ignition switch OFF.
- Disconnect BCM connector M18 and power window and door
lock/unlock switch RH connector.
- Check continuity between BCM connector M18 (A) terminal 40
and power window and door lock/unlock switch RH connector
D105 (B) terminal 16.
- Check continuity between BCM connector M18 (A) terminal 40 and ground.


FRONT POWER WINDOW SWITCH : Special Repair Requirement
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
2. CHECK ANTI-PINCH OPERATION
Check anti-pinch operation
Description
The main power window and door lock/unlock switch detects condition of the
door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
1.CHE ...
Component Function Check
1. CHECK POWER WINDOW LOCK
Activate the power window lock switch and verify that the front power window
RH, rear power window LH and
rear power window RH are inoperative ...
Other materials:
Rear door speaker
Description
The AV control unit sends audio signals to the rear door speakers using the
rear door speaker circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit and speaker connectors for the following:
Proper connection
Damage
Disconnected or loose terminals
2.HA ...
Intake door control system
System Diagram
System Description
The intake doors are automatically controlled by the temperature setting,
ambient temperature, in-vehicle temperature,
intake temperature, amount of sunload and ON/OFF operation of the compressor.
SYSTEM OPERATION
The intake door control judges intake doo ...
AV branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the AV control unit for
damage, bend and loose connection (unit
side and connector side).
2.CHECK HARNESS FOR OPEN CIRC ...