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Section 436 (Interior Light System): Inspection

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FRONT PERSONAL LIGHT SWITCH CONTINUITY 
    SPECIFIED CONDITION CHART

    Switch position Tester connection Specified condition
    OFF - No continuity
    ON 1 - 2 Continuity

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

    Fig 1: Identifying Connector Terminal
    G03485784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT FRONT PERSONAL LIGHT SWITCH CIRCUIT 

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

    Fig 2: Identifying Harness Connector Terminal
    G03485785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

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

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

  3. INSPECT REAR PERSONAL LIGHT SWITCH CONTINUITY 
    SPECIFIED CONDITION CHART

    Switch position Tester connection Specified condition
    OFF - No continuity
    ON 1 - 4 Continuity

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

    Fig 3: Identifying Harness Connector Terminal
    G03485786Courtesy 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.

    Fig 4: Identifying Harness Connector Terminal
    G03485787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

    Tester connection Condition Specified condition
    1 - Ground Always Continuity
    4 - Ground Always Battery positive voltage

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

  5. INSPECT ROOM LIGHT SWITCH CONTINUITY 
    SPECIFIED CONDITION CHART

    Switch position Tester connection Specified condition
    Room Light Switch OFF - No continuity
    Room Light Switch DOOR 3 - 4 Continuity
    Room Light Switch ON 1 - 4 Continuity

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

    Fig 5: Identifying Harness Connector Terminal
    G03485788Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT ROOM LIGHT SWITCH CIRCUIT 

    Disconnect the connector from the switch and inspect the connector on the wire harness side.

    Fig 6: Identifying Harness Connector Terminal
    G03485789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

    Tester connection Condition Specified condition
    1 - Ground Always Continuity
    4 - Ground Always Battery positive voltage

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

  7. INSPECT REAR ROOM LIGHT SWITCH CONTINUITY 
    1. Disconnect the connector from the room light assembly.
    2. Turn the room light switch ON, and check that continuity exists between terminal 2 and body ground.
      Fig 7: Inspecting Rear Room Light Switch Continuity
      G03485790Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the room light switch DOOR, and check that continuity exists between terminal 1 and 2.

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

      Fig 8: Checking Continuity Between Terminal
      G03485791Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSPECT REAR ROOM LIGHT SWITCH CIRCUIT 

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

    Fig 9: Identifying Harness Connector Terminal
    G03485792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

    Tester connection Condition Specified condition
    1 - Ground Always Battery positive voltage

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

  9. INSPECT VANITY LIGHT CONTINUITY 
    SPECIFIED CONDITION CHART

    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 the bulb.

    Fig 10: Identifying Harness Connector Terminal
    G03485793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSPECT VANITY LIGHT CIRCUIT 

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

    Fig 11: Identifying Harness Connector Terminal
    G03485794Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

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

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

  11. INSPECT DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminal and the switch body with the switch ON (switch pin released).
    2. Check that no continuity exists between terminals and the switch body with the switch OFF (switch pin pushed).

      If continuity is not as specified, replace the switch.

      Fig 12: Inspecting Door Courtesy Switch Continuity
      G03485795Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSPECT DOOR COURTESY SWITCH CIRCUIT 

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

    Fig 13: Identifying Harness Connector Terminal
    G03485796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

    Tester connection Condition Specified condition
    1 - Ground Always Battery positive voltage

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

  13. 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 the bulb.

    Fig 14: Identifying Harness Connector Terminal
    G03485797Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. INSPECT DOOR COURTESY LIGHT CIRCUIT (See  PROBLEM SYMPTOMS TABLE  ) 
    Fig 15: Identifying Harness Connector Terminal
    G03485798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. INSPECT BACK DOOR COURTESY SWITCH CONTINUITY 
    SPECIFIED CONDITION CHART

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

    If continuity is not as specified, replace the back door lock assembly.

    Fig 16: Identifying Harness Connector Terminal
    G03485799Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSPECT BACK DOOR COURTESY SWITCH CIRCUIT 

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

    Fig 17: Identifying Harness Connector Terminal
    G03485800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    SPECIFIED CONDITION CHART

    Tester connection Condition Specified condition
    2 - Ground Always Continuity

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

  17. INSPECT GLOVE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY 
    SPECIFIED CONDITION CHART

    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 18: Identifying Harness Connector Terminal
    G03485801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. 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 the bulb.

    Fig 19: Identifying Harness Connector Terminal
    G03485802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. INSPECT FOOT LIGHT CIRCUIT 

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

    SPECIFIED CONDITION CHART

    Condition Tester connection Specified condition
    Ignition switch ON and door open 1 - Ground Battery positive voltage
    Always 2 - Ground Continuity

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

    Fig 20: Identifying Harness Connector Terminal
    G03485803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. INSPECT INSIDE DOOR HANDLE ILLUMINATION CIRCUIT 

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

    SPECIFIED CONDITION CHART

    Condition Tester connection Specified condition
    Ignition switch ON and door open 1 - Ground Battery positive voltage
    Always 2 - Ground Continuity

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

    Fig 21: Identifying Harness Connector Terminal
    G03485804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. INSPECT SIDE STEP LIGHT CIRCUIT 

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

    SPECIFIED CONDITION CHART

    Condition Tester connection Specified condition
    Ignition switch ON and door open 1 - Ground Battery positive voltage
    Always 2 - Ground Continuity

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

    Fig 22: Identifying Harness Connector Terminal
    G03485805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. INSPECT OUTER FOOT LIGHT CIRCUIT 

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

    SPECIFIED CONDITION CHART

    Condition Tester connection Specified condition
    Ignition switch ON and door open 1 - Ground Battery positive voltage
    Always 2 - Ground Continuity

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

    Fig 23: Identifying Harness Connector Terminal
    G03485806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. INSPECT CENTER CONSOLE SPOT LIGHT CIRCUIT 

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

    SPECIFIED CONDITION CHART

    Condition Tester connection Specified condition
    Ignition switch ON and door open 1 - Ground Battery positive voltage
    Always 2 - Ground Continuity

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

    Fig 24: Identifying Harness Connector Terminal
    G03485807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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