Combination Switch Inspection According to Self-Diagnostic Results

SELF-DIAGNOSTIC RESULT CHECK
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 to CONSULT-II, and select "BCM" on "SELECT SYSTEM" screen.
2. Select "BCM control unit" on "SELECT WORK ITEM" screen, and select "SELF-DIAG RESULTS".
3. Check display content in self-diagnostic results.
Fig 1: Self-Diagnostic Result Check Chart (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Self-Diagnostic Result Check Chart (2 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Display content
1. No malfunction: Inspection End
2. Malfunction in diagnosis system: GO TO 2.
3. Malfunction in headlamp switch system: Replace Lighting switch.
HARNESS INSPECTION
1. Disconnect BCM connector and combination switch connector.
2. Check continuity between BCM harness connector of suspect system and combination switch harness connector terminals.
  
  Fig 3: Checking Continuity Between BCM Harness Connector Of Suspect System And Combination Switch Harness Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Self-Diagnostic Result Check Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  OK or NG
  1. OK : GO TO 3.
  2. NG : Repair harness.
CHECK 1: COMBINATION SWITCH
1. Connect combination switch connector.
2. Check continuity for combination switch harness connector between input and output terminals of applicable malfunctioning system.
  
  Fig 5: Checking Continuity For Combination Switch Harness Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Self-Diagnostic Result Check Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  OK or NG
  1. OK : GO TO 4.
  2. NG : GO TO 6 .
INSPECTION OF BCM INPUT TERMINAL VOLTAGE
Connect BCM connector, and check BCM input terminal voltage of suspect system.

Fig 7: Checking BCM Input Terminal Voltage Of Suspect System
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 8: Self-Diagnostic Result Check Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 5.
2. NG : Replace BCM.
BCM OUTPUT TERMINAL INSPECTION
Connect combination switch connector, and check BCM output terminal voltage waveform of applicable malfunctioning system.

Fig 9: Checking BCM Output Terminal Voltage Waveform Of Applicable Malfunctioning System
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Combination switch malfunction, go to 6.
2. NG : Replace BCM.
Fig 10: Self-Diagnostic Result Check Chart
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK 2:COMBINATION SWITCH
Following the table below, check switches by procedure of appropriate malfunctioning system.

Fig 11: Self-Diagnostic Result Check Chart
Courtesy of NISSAN MOTOR CO., U.S.A.
1. :Inspection End