Combination Switch Inspection

Referring to COMBINATION SWITCH INSPECTION CHECK CHART  , check which system malfunctioning switch belongs to.

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: Displaying DATA MONITOR

   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.
   Fig 2: Checking Continuity Between BCM Harness Connector And Combination Switch Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
   CONTINUITY CHECK CHART
   
   

   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 (W/L)		10 (W/L)
   		Output 3	34 (PU)		3 (PU)
   4		Input 4	3 (G)		9 (G)
   		Output 4	33 (L)		4 (L)
   5		Input 5	2 (G/R)		8 (G/R)
   		Output 5	32 (GY)		5 (GY)

3. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.
   Fig 3: Checking Continuity Between Terminals Of BCM Harness Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   CONTINUITY CHECK CHART
   
   

   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 (W/L)
   		Output 3	34 (PU)
   4		Input 4	3 (G)
   		Output 4	33 (L)
   5		Input 5	2 (G/R)
   		Output 5	32 (GY)

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.
   Fig 4: Checking Signal Between Combination Switch Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   BCM OUTPUT TERMINAL INSPECTION CHART
   
   

   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.

Referring to COMBINATION SWITCH INSPECTION CHART  , perform combination switch inspection.

1. : INSPECTION END