Combination Switch Inspection

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

• : 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 the 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: Identifying System To Which Malfunctioning Switch

   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 the 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. Turn ignition switch OFF.
2. Disconnect BCM connector and combination switch connector.
3. Check for continuity between BCM harness connector of the suspect system and the corresponding combination switch harness connector.
   CONNECTOR SPECIFICATION
   
   

   Suspect system	BCM			Combination switch		Continuity
   	Connector	Terminal		Connector	Terminal
   1	M3	Input 1	6	M17	6	Yes
   		Output 1	36		1
   2		Input 2	5		7
   		Output 2	35		2
   3		Input 3	4		10
   		Output 3	34		3
   4		Input 4	3		9
   		Output 4	33		4
   5		Input 5	2		8
   		Output 5	32		5

   Fig 2: Identifying For Continuity Between BCM Harness Connector Of Suspect System

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check for continuity between BCM harness connector in suspect malfunctioning system and ground.
   TERMINALS AND REFERENCE VALUES CHART
   
   

   Suspect system	BCM connector	Terminal		Ground	Continuity
   1	M3	Input 1	6		No
   		Output 1	36
   2		Input 2	5
   		Output 2	35
   3		Input 3	4
   		Output 3	34
   4		Input 4	3
   		Output 4	33
   5		Input 5	2
   		Output 5	32

   Fig 3: Identifying Continuity Between BCM Harness Connector Suspect Malfunctioning System And Ground

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

OK or NG 

OK : GO TO 4.

NG : Check harness between BCM and combination switch for open or short circuit.

1. Turn lighting switch and wiper switch OFF position.
2. Set wiper dial position 4.
3. Connect BCM connector and combination switch connector.
4. Turn ignition switch ON.
5. Check BCM output terminal voltage waveform of suspect malfunctioning system.
   TERMINALS AND REFERENCE VALUES CHART
   
   

   Suspect system	(+)		(-)	Reference value
   	Combination switch connector	Terminal
   1	M17	1	Ground
   2		2
   3		3
   4		4
   5		5

   Fig 4: Identifying BCM Output Terminal Voltage Waveform Of Suspect Malfunctioning System

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

OK or NG 

OK : Open circuit in combination switch, GO TO 5.

NG : Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

Referring to table below, perform combination switch inspection.

• : INSPECTION END