Combination Switch Inspection
WARNING: This page is about a different car, the 2004 Nissan Titan. 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.
COMBINATION SWITCH SYSTEM INSPECTIONSystem 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 - - >> 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 carries out CAN communication.- Connect CONSULT-II, and select "COMB SW" on "SELECT TEST ITEM" screen.
- Select "DATA MONITOR".
- 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.
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.
- HARNESS INSPECTION
- Disconnect BCM and combination switch connectors.
- Check for continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.TERMINAL CONDITION SPECIFICATION
Suspect system Terminals Continuity BCM Combination switch Connector Terminal (Wire color) Connector Terminal (Wire color) 1 M18 Input 1 6 (V) M28 6 (V) Yes Output 1 36 (R/W) 1 (R/W) 2 Input 2 5 (G/B) 7 (G/B) Output 2 35 (O/B) 2 (O/B) 3 Input 3 4 (Y) 10 (Y) Output 3 34 (L) 3 (L) 4 Input 4 3 (G/Y) 9 (G/Y) Output 4 33 (R/Y) 4 (R/Y) 5 Input 5 2 (SB) 8 (SB) Output 5 32 (R/G) 5 (R/G) - Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.TERMINAL CONDITION SPECIFICATION
Suspect system Terminals Continuity BCM(+) - Connector Terminal (Wire color) 1 M18 Input 1 6 (V) Ground No Output 1 36 (R/W) 2 Input 2 5 (G/B) Output 2 35 (O/B) 3 Input 3 4 (Y) Output 3 34 (L) 4 Input 4 3 (G/Y) Output 4 33 (R/Y) 5 Input 5 2 (SB) Output 5 32 (R/G)
OK or NG
- OK : GO TO 4.
- NG : Check harness between BCM and combination switch for open or short circuit.
- BCM OUTPUT TERMINAL INSPECTION
- Turn lighting switch and wiper switch to OFF.
- Set wiper dial to position 4.
- Connect BCM and combination switch connectors, and check BCM output terminal voltage waveform of suspect malfunctioning system.
BCM OUTPUT TERMINAL SPECIFICATIONSuspect system Terminals Combination switch(+) Connector Terminal (Wire color) 1 M28 Output 1 1 (R/W) 2 Output 2 2 (O/B) 3 Output 3 3 (L) 4 Output 4 4 (R/Y) 5 Output 5 5 (R/G) OK or NG
- OK : Open circuit in combination switch, GO TO 5.
- NG : Replace BCM.
- COMBINATION SWITCH INSPECTION
Referring to COMBINATION SWITCH INSPECTION table, perform combination switch inspection.
COMBINATION SWITCH INSPECTIONProcedure 1 2 3 4 5 6 7 Replace lighting switch. Confirm check results. OK INSPECTION END Confirm check results. OK INSPECTION END Confirm check results. OK INSPECTION END NG Replace wiper switch. NG Replace switch base. NG Confirm symptom again. - >> INSPECTION END.