Nissan Maxima Service and Repair Manual: Power window serial link

Nissan Maxima Service and Repair Manual / Body exterior, doors, roof & vehicle security / Power window control system / DTC/circuit diagnosis / 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.

Nissan Maxima. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

Nissan Maxima. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

  1. Remove Intelligent Key, and close front door LH and RH.
  2. 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".
  3. 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".

Nissan Maxima. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

2. CHECK POWER WINDOW SERIAL LINK CIRCUIT

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

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

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

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

Nissan Maxima. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH

  1. Remove Intelligent Key, and close the front door LH and RH.
  2. 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".
  3. 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".

Nissan Maxima. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH

2. CHECK POWER WINDOW SERIAL LINK CIRCUIT

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

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

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

Nissan Maxima. CHECK POWER WINDOW SERIAL LINK CIRCUIT

FRONT POWER WINDOW SWITCH : Special Repair Requirement

1. PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure.

2. CHECK ANTI-PINCH OPERATION

Check anti-pinch operation

    Door key cylinder switch
    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 ...

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    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 ...

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    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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