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Home >> Infiniti >> 2003 >> M45 >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Parking License & Tail Lamps >> No Parking, Side Marker, License And Tail Lamps Operate Properly

No Parking, Side Marker, License And Tail Lamps Operate Properly

  1. CHECK FUSE 

    Check for blown tail lamp relay fuse.

    FUSE CHECK

    Relay Fuse No.
    Tail lamp relay 54

    Refer to "WIRING DIAGRAM  ".

    OK or NG

    1. OK: GO TO 2.
    2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
  2. CHECK TAIL LAMP RELAY POWER SUPPLY CIRCUIT 
    1. Remove the tail lamp relay.
    2. Check voltage between tail lamp relay connector E3-3 terminals 2 or 6 and ground.
      1. Battery voltage should exist. 

    OK or NG

    1. OK: GO TO 3.
    2. NG: Replace fuse, fusible link and relay block (J/B).
    Fig 1: Checking Voltage Between Tail Lamp Relay Connector And Ground
    G03142801Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK TAIL LAMP RELAY 

    Apply 12V between tail lamp relay terminals 2 and 1, and check continuity between terminals 6 and 7.

    1. Continuity should exist. 

    OK or NG

    1. OK: GO TO 4.
    2. NG: Replace the tail lamp relay.
    Fig 2: Connecting Relay Continuity (Energized)
    G03142802Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK TAIL LAMP RELAY CONTROL SIGNAL CIRCUIT 1 
    1. Disconnect the headlamp battery saver control unit connector and the BCM connector.
    2. Check continuity between headlamp battery saver control unit harness connector M33 terminal 6 (LG/B) and tail lamp relay connector E3-3 terminal 1(LG/B).
      1. Continuity should exist. 
    3. Check continuity between headlamp battery saver control unit harness connector M33 terminal 6 (LG/B) and ground.
      1. Continuity should not exist. 

    OK or NG

    1. OK: GO TO 5.
    2. NG: Repair harness or connector.
    Fig 3: Checking Harness Continuity & Continuity To Ground
    G03142803Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK TAIL LAMP RELAY CONTROL SIGNAL CIRCUIT 2 
    1. Check continuity between headlamp battery saver control unit harness connector M34 terminal 14 (LG/B) and tail lamp relay connector E3-3 terminal 1 (LG/B).
      1. Continuity should exist. 
    2. Check continuity between headlamp battery saver control unit harness connector M34 terminal 14 (LG/B) and ground.
      1. Continuity should not exist. 

    OK or NG

    1. OK: GO TO 6.
    2. NG: Repair harness or connector.
    Fig 4: Checking Harness Continuity & Continuity To Ground
    G03142804Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK COMBINATION LAMP POWER SUPPLY CIRCUIT 
    1. Disconnect each combination lamp connectors.
    2. Check continuity between tail lamp relay harness connector E3-3 terminal 7 (R/G) and each combination lamp harness connector terminal 1 (R/G).
      1. Continuity should exist. 
    3. Check continuity between each combination lamp harness connector terminal 1 (R/G) and ground.
      1. Continuity should not exist. 

    OK or NG

    1. OK: GO TO 7.
    2. NG: Repair harness or connector.
  7. CHECK LIGHTING SWITCH 

    Check continuity of lighting switch. Refer to SWITCH CIRCUIT INSPECTION in LIGHTING AND TURN SIGNAL SWITCH - M45 article.

    OK or NG

    1. OK: GO TO 8.
    2. NG: Replace the lighting switch.
  8. CHECK LIGHTING SWITCH GROUND CIRCUIT 

    Check continuity between lighting switch harness connector M55 terminal 5 (B) and ground.

    1. Continuity should exist. 

    OK or NG

    1. OK: Replace the headlamp battery saver control unit.
    2. NG: Check harness ground circuit.
    Fig 5: Checking Continuity Between Lighting Switch Harness Connector And Ground
    G03142805Courtesy of NISSAN MOTOR CO., U.S.A.