Combination Switch Inspection

1. Referring to table below, check which system malfunctioning switch belongs to.
   SYSTEM CHECK
   
   

   System 1	System 2	System 3	System 4	System 5
   -	FR WASHER	FR WIPER LO	TURN LH	TURN RH
   FR WIPER HI	-	FR WIPER INT	PASSING	HEAD LAMP1
   INT VOLUME 1	RR WASHER	-	HEAD LAMP2	HI BEAM
   RR WIPER INT	INT VOLUME 3	AUTO LIGHT	-	LIGHT SW 1ST
   INT VOLUME 2	RR WIPER ON	-	FR FOG	-

1. Check the system to which malfunctioning switch belongs, and GO TO 2.

With CONSULT-II

1. Connect CONSULT-II, and select "COMB SW" on "SELECT TEST ITEM" screen.
2. Select "DATA MONITOR".
3. Select "START", and confirm that other switches in malfunctioning system operate normally.

   Example: When auto light switch is malfunctioning, confirm that "FRONT WIPER LOW" and "FRONT WIPER INT" in System 3, to which the auto light switch belongs, turn ON-OFF normally.

   Fig 1: Data Monitor List

   Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Operating combination switch, and confirm that other switches in malfunctioning system operate normally. Example: When auto light switch is malfunctioning, confirm that FRONT WIPER LOW and FRONT WIPER INT in System 3, to which the auto light switch belongs, operate normally.

Check results 

1. Other switches in malfunctioning system operate normally. Replace lighting switch or wiper switch.
2. Other switches in malfunctioning system do not operate normally. GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.
   Fig 2: Identifying System Terminals For Harness Continuity Tests

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Identifying BCM and Combination Switch Connector Terminals (Continuity Test)

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.
   Fig 4: Identifying BCM System Terminals For Continuity To Ground Tests

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Identifying BCM Connector Terminals (Short-To-Ground Test)

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK: GO TO 4.
2. NG: Check harness between BCM and combination switch for open or short circuit.

1. Turn lighting switch and wiper switch into ON.
2. Set wiper dial position 4.
3. Connect BCM and combination switch connectors, and check BCM output terminal voltage waveform of suspect malfunctioning system.
   Fig 6: Identifying Combination Switch Terminals For Voltage Tests

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 7: Checking BCM Output Terminal Voltage Waveform

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK: Open circuit in combination switch, GO TO 5.
2. NG: Replace BCM.

Referring to illustration, perform combination switch inspection.

Fig 8: Combination Switch Final Inspection Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

1. INSPECTION END