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Section 330 (Interior Light System): Inspection

WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FRONT PERSONAL LIGHT SWITCH CONTINUITY 
    FRONT PERSONAL LIGHT SWITCH CONTINUITY

    Switch position Tester connection Specified condition
    Interior light switch OFF (Lever switch) - No continuity
    Interior light switch DOOR (Lever switch) 1 - 3 Continuity
    Interior light switch ON (Lever switch) 1 - 2 Continuity
    (1)Personal light OFF (Push switch) - No continuity
    (1)Personal light ON (Push switch) 1 - 2 Continuity
    (1) Set the interior light switch to OFF or DOOR.

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 1: Inspecting Front Personal Light Switch Continuity
    G03598733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT FRONT PERSONAL LIGHT SWITCH CIRCUIT 

    (See  ILLUMINATION CIRCUIT  ) 

    Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 2.

    Fig 2: Identifying Terminals Of Front Personal Light Switch Connector
    G03598734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    FRONT PERSONAL LIGHT SWITCH CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Constant Continuity
    1 - Ground Constant Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

  3. INSPECT REAR PERSONAL LIGHT SWITCH CONTINUITY 
    REAR PERSONAL LIGHT SWITCH CONTINUITY

    Switch position Tester connection Specified condition
    Room light switch OFF and door closed - No continuity
    Room light switch ON and door closed 1 - 2 Continuity
    Room light switch OFF or ON and door opened 1 - 3 Continuity

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 3: Identifying Terminals Of Rear Personal Light Switch Connector
    G03598735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT REAR PERSONAL LIGHT SWITCH CIRCUIT 

    Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 4.

    Fig 4: Identifying Terminals Of Rear Personal Light Switch Connector
    G03598736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    REAR PERSONAL LIGHT SWITCH CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Constant Continuity
    1 - Ground Constant Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

  5. INSPECT VANITY LIGHT CONTINUITY 
    VANITY LIGHT CONTINUITY

    Switch position Tester connection Specified condition
    OFF (closed) - No continuity
    ON (opened) 1 - 2 Continuity

    If continuity is not as specified, replace the vanity light assembly or bulb.

    Fig 5: Identifying Terminals Of Vanity Light Connector
    G03598737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT VANITY LIGHT CIRCUIT 

    Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 6.

    Fig 6: Identifying Terminals Of Vanity Light Connector
    G03598738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    VANITY LIGHT CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Constant Continuity
    1 - Ground Constant Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

  7. Front door: INSPECT DOOR COURTESY SWITCH CONTINUITY 
    1. Connect the connector to the front door ECU.
    2. Check that continuity exists between terminals 1 and 2 when door is opened.
    3. Check that no continuity exists between terminals 1 and 2 when door is closed.

    If continuity is not as specified, replace the switch.

  8. Front door: INSPECT DOOR COURTESY SWITCH CIRCUIT 

    Driver side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Passenger side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Fig 7: Inspecting Door Courtesy Switch Continuity (Front Door)
    G03598739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. Rear door: INSPECT DOOR COURTESY SWITCH CONTINUITY 
    1. Connect the connector to the rear door ECU.
    2. Check that continuity exists between terminals 1 and 2 when door is opened.
    3. Check that no continuity exists between terminals 1 and 2 when door is closed.

    If continuity is not as specified, replace the switch.

  10. Rear door: INSPECT DOOR COURTESY SWITCH CIRCUIT 

    Rear LH side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Rear RH side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Fig 8: Inspecting Door Courtesy Switch Continuity (Rear Door)
    G03598740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSPECT DOOR COURTESY LIGHT CONTINUITY 

    Using an ohmmeter, check that continuity exists between terminals.

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 9: Identifying Terminals Of Door Courtesy Light Connector
    G03598741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSPECT DOOR COURTESY LIGHT CIRCUIT 

    Driver side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Passenger side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Rear LH side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Rear RH side: (See  DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT  ) 

    Fig 10: Identifying Terminals Of Door Courtesy Light Connector
    G03598742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY 
    LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

    Switch position Tester connection Specified condition
    OFF (closed) - No continuity
    ON (opened) 2 - Switch body Continuity

    If continuity is not as specified, replace the switch.

    Fig 11: Identifying Terminals Of Luggage Compartment Door Courtesy Switch Connector
    G03598743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT 

    (See  LUGGAGE COMPARTMENT DOOR LOCK & UNLOCK SWITCH CIRCUIT  ) 

    Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 12.

    Fig 12: Identifying Terminals Of Luggage Compartment Door Courtesy Switch Connector
    G03598744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Body ground Luggage compartment door courtesy switch ON (door opened) Continuity

    If circuit is not as specified, inspect power source or wire harness.

  15. INSPECT LUGGAGE COMPARTMENT LIGHT CONTINUITY 

    Using an ohmmeter, check that continuity exists between terminals.

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 13: Identifying Terminals Of Luggage Compartment Light Connector
    G03598745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSPECT LUGGAGE COMPARTMENT LIGHT CIRCUIT 

    Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 14.

    Fig 14: Identifying Terminals Of Luggage Compartment Light Connector
    G03598746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    LUGGAGE COMPARTMENT LIGHT CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    1 - Body ground Constant Continuity

    If circuit is not as specified, inspect power source or wire harness.

  17. INSPECT GLOVE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY 
    GLOVE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

    Switch position Tester connection Specified condition
    OFF (closed) - No continuity
    ON (opened) 1 - 2 Continuity

    If continuity is not as specified, replace the switch.

    Fig 15: Inspecting Glove Compartment Door Courtesy Switch
    G03598747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. INSPECT GLOVE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT 

    Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 16.

    Fig 16: Identifying Terminals Of Glove Compartment Door Courtesy Switch Connector
    G03598748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    GLOVE COMPARTMENT DOOR COURTESY SWITCH CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Constant Continuity
    1 - Ground Light control switch OFF No voltage
    1 - Ground Light control switch TAIL or HEAD Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

  19. INSPECT GLOVE COMPARTMENT LIGHT CONTINUITY 

    Using an ohmmeter, check that continuity exists between terminals.

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 17: Identifying Terminals Of Glove Compartment Light Connector
    G03598749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. INSPECT GLOVE COMPARTMENT LIGHT CIRCUIT 

    Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 18.

    Fig 18: Identifying Terminals Of Glove Compartment Light Connector
    G03598750Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    GLOVE COMPARTMENT LIGHT CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Glove compartment door courtesy switch ON Continuity
    1 - Ground Light control switch in TAIL or HEAD Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

  21. INSPECT LICENCE PLATE LIGHT CONTINUITY 

    Using an ohmmeter, check that continuity exists between terminals.

    If continuity is not as specified, replace the light assembly or bulb.

    Fig 19: Identifying Terminals Of Licence Plate Light Connector
    G03598751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. INSPECT LICENCE PLATE LIGHT CIRCUIT 

    Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 20.

    Fig 20: Identifying Terminals Of Licence Plate Light Connector
    G03598752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    LICENCE PLATE LIGHT CONNECTOR SPECIFIED CONDITION

    Tester connection Condition Specified condition
    1 - Ground Constant Continuity
    2 - Ground Light control switch TAIL or HEAD Battery positive voltage

    If circuit is not as specified, inspect power source or wire harness.

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