Combination Switch Inspection

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

SYSTEM CHECK

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

SYSTEM CHECK REFERENCE

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 LAMP 1
INT VOLUME 1	RR WASHER	-	HEAD LAMP 2	HI BEAM
RR WIPER INT	INT VOLUME 3	-	-	LIGHT SW 1ST
INT VOLUME 2	RR WIPER ON	-	-	-

Check the system to which malfunctioning switch belongs, and 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 carry 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 the HI BEAM switch is malfunctioning, confirm that "TURN RH", "HEAD LAMP 1" and "LIGHT SW 1 ST" in System 5, to which the HI BEAM switch belongs, turn ON-OFF normally.
Fig 1: Scan Tool Display "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 the HI BEAM switch is malfunctioning, confirm that "TURN RH", "HEAD LAMP 1" and "LIGHT SW 1 ST" in System 5, to which HI BEAM switch belongs, turn ON-OFF 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.
HARNESS INSPECTION
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check for continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.
  
  Fig 2: BCM Harness Connector M90 Terminals 2, 3, 4, 5, 6, 32, 34, 35, 36, Combination Switch Connector M29 Terminals 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 & Ground Continuity Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: BCM Harness Connector M90 Terminals 2, 3, 4, 5, 6, 32, 34, 35, 36, Combination Switch Connector M29 Terminals 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 & Ground Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.
Fig 4: Terminals & Reference Value 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 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 5: Combination Switch Connector M29 Terminals 1, 2, 3, 4, 5 & Ground Output Terminal Voltage Waveform Specifications Table
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 ".
Fig 6: Combination Switch Connector M29 Terminals 1, 2, 3, 4, 5 & Ground Output Terminal Voltage Waveform Test
Courtesy of NISSAN MOTOR CO., U.S.A.
COMBINATION SWITCH INSPECTION
Referring to table below, perform combination switch inspection.

Fig 7: Combination Switch Inspection Reference Table
Courtesy of NISSAN MOTOR CO., U.S.A.
- INSPECTION END