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Home >> Nissan-Datsun >> 2003 >> 350Z Standard >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> Turn Signal And Hazard Warning Lamps >> Inspection For Power Supply And Ground Circuit >> Hazard Warning Lamps Do Not Operate But Turn Signal Lamps Operate

Hazard Warning Lamps Do Not Operate But Turn Signal Lamps Operate

  1. CHECK BULB 

    Check that bulb standard of each turn signal lamp is correct.

    OK or NG 

    1. OK : GO TO 2.
    2. NG : Replace turn signal lamp bulb.
  2. HAZARD SWITCH INPUT SIGNAL 

    Select "BCM" on CONSULT-II. Use "FLASHER" data monitor to verify that "HAZARD SW" turns ON-OFF linked with operation of hazard switch.

    OK or NG 

    1. OK : Replace BCM.
    2. NG : GO TO 3.
    Fig 1: Displaying Data Monitor
    G02851067Courtesy of NISSAN MOTOR CO., U.S.A.
  3. HAZARD SWITCH SIGNAL CIRCUIT CHECK 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and hazard switch connectors.
    3. Check continuity between BCM harness connector M3 terminal 61(G/R) and hazard switch connector M153 terminal 1(PU).
      1. Continuity should exist 

    OK or NG 

    1. OK : GO TO 4.
    2. NG : Repair harness or connector.
    Fig 2: Checking Continuity Between BCM Harness Connector Terminal And Hazard Switch Connector Terminal
    G02851068Courtesy of NISSAN MOTOR CO., U.S.A.
  4. HAZARD SIGNAL INPUT CHECK 
    1. Connect BCM connector.
    2. Check voltage between BCM harness connector and ground.
    Fig 3: Terminal Chart
    G02851069Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Checking Voltage Between BCM Harness Connector And Ground
    G02851070Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 5.
    2. NG : Replace BCM.
  5. HAZARD SWITCH CHECK 
    Fig 5: Terminal Chart
    G02851071Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 6: Checking Continuity Between Hazard Switch Harness Connector
    G02851072Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 6.
    2. NG : Replace hazard switch.
  6. HAZARD SWITCH GROUND CIRCUIT CHECK 

    Check continuity between hazard switch harness connector M153 terminal 2(B) and ground.

    1. Continuity should exist 

    OK or NG 

    1. OK : Replace BCM.
    2. NG : Repair or replace harness.
Fig 7: Checking Continuity Between Hazard Switch Harness Connector Terminal
G02851073Courtesy of NISSAN MOTOR CO., U.S.A.