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. Refer to BCS-19, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)".

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC-136, "Wiring Diagram".

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 harness connector D7 terminal 4, 6 and ground.

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 connector.

3.  Check continuity between main power window and door lock/ unlock switch harness connector D7 (A) terminal 4, 6 and front door lock assembly LH harness connector D10 (B) 5, 6.

4. Check continuity between main power window and door lock/ unlock switch harness connector D7 (A) 4, 6 and ground.

3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly LH harness connector D10 terminal 4 and ground.

4.CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch.

Refer to SEC-86, "Component Inspection".

Component Inspection

COMPONENT INSPECTION

1.CHECK DOOR KEY CYLINDER SWITCH

Check front door lock assembly LH.

Special Repair Requirement

1. PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. Refer to PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Special Repair Requirement" and PWC-7, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement".

 GO TO 2

2. CHECK ANTI-PINCH OPERATION

Check anti-pinch operation. Refer to PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Special Repair Requirement" and PWC-7, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement".

 End.