Nissan Maxima Service and Repair Manual: 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. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT.

Nissan Maxima. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Diagnosis Procedure

1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

  1. Turn ignition switch ON.
  2. Check voltage between main power window and door lock/unlock switch connector and ground.

Nissan Maxima. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect main power window and door lock/unlock switch connector and front door lock assembly LH (key cylinder switch) connector.
  3. Check continuity between main power window and door lock/unlock switch connector and front door lock assembly LH (key cylinder switch) connector.
  4. Check continuity between main power window and door lock/unlock switch connector and ground

Nissan Maxima. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

Nissan Maxima. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly LH connector and ground.

Nissan Maxima. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

4. CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch

Component Inspection

COMPONENT INSPECTION

1. CHECK DOOR KEY CYLINDER SWITCH

Check front door lock assembly LH (key cylinder switch).

Nissan Maxima. CHECK DOOR KEY CYLINDER SWITCH

Special Repair Requirement

1. PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure.

    Key slot

    Unlock sensor