Combination Switch Inspection

WARNING: This page is about a different car, the 2005 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

SYSTEM CHECK

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

SYSTEM CHECK REFERENCE 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	-	-	HEAD LAMP2	HI BEAM
-	INT VOLUME 3	AUTO LIGHT	-	TAIL LAMP
INT VOLUME 2	-	-	FR FOG	-

GO TO 2.

SYSTEM CHECK
With CONSULT-II

CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carries out CAN communication.
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: Identifying Scan Tools 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. Refer to "REMOVAL AND INSTALLATION " (for lighting switch) or "REMOVAL AND INSTALLATION OF WIPER AND WASHER SWITCH ".

Other switches in malfunctioning system do not operate normally.:GO TO 3.
HARNESS INSPECTION
1. Disconnect BCM and combination switch connectors.
2. Check continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.
  
  Fig 2: Continuity Check Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: 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.
  
  Fig 4: Continuity Check Chart
  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.
BCM OUTPUT TERMINAL INSPECTION
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.
Fig 5: Combination Switch Connectors Terminals Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 6: Checking BCM Output Terminal Voltage Waveform
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 ".
COMBINATION SWITCH INSPECTION
Referring to table below, perform combination switch inspection.

Fig 7: Combination Switch Inspection Procedure Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.
- Inspection End.