Combination Switch Inspection

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

   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	-	TAIL LAMP
   INT VOLUME 2	RR WIPER ON	-	FRFOG	-

   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: CONSULT-II Function Display Data Monitor

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

Without CONSULT-II

Operate 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

Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch. 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.
   TERMINAL CONTINUITY CHART
   
   

   Suspect system	Terminals					Continuity
   	BCM			Combination switch
   	Connector	Terminal (Wire color)		Connector	Terminal (Wire color)
   1	M18	Input 1	6 (G/W)	M28	6 (G/W)	Yes
   		Output 1	36(R/W)		1 (R/W)
   2		Input 2	5 (G/B)		7 (G/B)
   		Output 2	35 (R/B)		2 (R/B)
   3		Input 3	4 (G/R)		10 (G/R)
   		Output 3	34 (R)		3(R)
   4		Input 4	3(G/Y)		9(G/Y)
   		Output 4	33 (R/Y)		4 (R/Y)
   5		Input 5	2 (GR/R)		8 (GR/R)
   		Output 5	32 (R/G)		5 (R/G)

   Fig 2: Checking Continuity Between BCM Harness Connector Of Suspect System

   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.
   TERMINAL CONTINUITY CHART
   
   

   Suspect system	Terminals				Continuity
   	BCM(+)			-
   	Connector	Terminal (Wire color)
   1	M18	Input 1	6(G/W)	Ground	No
   		Output 1	36 (R/W)
   2		Input 2	5 (G/B)
   		Output 2	35 (R/B)
   3		Input 3	4 (G/R)
   		Output 3	34 (R)
   4		Input 4	3(G/Y)
   		Output 4	33 (R/Y)
   5		Input 5	2 (GR/R)
   		Output 5	32 (R/G)

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

OK or NG

1. OK: Open circuit in combination switch, GO TO 5.
2. NG: Replace BCM.
   Fig 3: 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.

: INSPECTION END.