Combination Switch Inspection

1. Referring to table below, check which system malfunctioning switch belongs to.
   COMBINATION SWITCH 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 auto light switch belongs, turn ON-OFF normally.

   Fig 1: Displaying Data Monitor Screen

   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. Disconnect BCM and combination switch connectors.
2. Check for continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.
   BCM TERMINAL SPECIFICATION
   
   

   Suspect system	Terminals					Continuity
   	BCM			Combination switch
   	Connector	Terminal (Wire color)		Connector	Terminal (Wire color)
   1	M1	Input 1	6 (W/R)	M29	6 (W/R)	Yes
   		Output 1	36 (Y)		1 (Y)
   2		Input 2	5 (W/G)		7 (W/G)
   		Output 2	35 (Y/R)		2 (Y/R)
   3		Input 3	4 (G/R)		10 (G/R)
   		Output 3	34 (PU)		3 (PU)
   4		Input 4	3 (G)		9 (G)
   		Output 4	33 (L)		4 (L)
   5		Input 5	2 (W/L)		8 (W/L)
   		Output 5	32 (GY)		5 (GY)

   Fig 2: Checking Continuity Between BCM Harness Connector Of Suspect System And Corresponding Combination Switch Connector Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.
   BCM HARNESS CONNECTOR TERMINAL SPECIFICATION
   
   

   Suspect system	Terminals				Continuity
   	BCM			Ground
   	Connector	Terminal (Wire color)
   1	M1	Input 1	6 (W/R)		No
   		Output 1	36 (Y)
   2		Input 2	5 (W/G)
   		Output 2	35 (Y/R)
   3		Input 3	4 (G/R)
   		Output 3	34 (PU)
   4		Input 4	3 (G)
   		Output 4	33 (L)
   5		Input 5	2 (W/L)
   		Output 5	32 (GY)

   Fig 3: Checking Continuity Between Each Terminal Of BCM Harness Connector In Suspect Malfunctioning System And Ground

   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 OFF.
2. Set wiper dial position 4.
3. Connect BCM and combination switch connectors, and check BCM output terminal voltage waveform of suspect malfunctioning system.
   BCM OUTPUT TERMINAL SPECIFICATION
   
   

   Suspect system	Terminals
   	Combination switch(+)
   	Connector	Terminal (Wire color)
   1	M29	1 (Y)
   2		2 (Y/R)
   3		3 (PU)
   4		4 (L)
   5		5 (GY)

OK or NG

1. OK: Open circuit in combination switch, GO TO 5.
2. NG: Replace BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
   Fig 4: Connecting BCM, Combination Switch Connectors And Checking BCM Output Terminal Voltage Waveform Of Suspect Malfunctioning System

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

Referring to table below, perform combination switch inspection.

1. : INSPECTION END