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Section 43 (Interior Light System): Inspection

WARNING: This page is about a different car, the 2005 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 
    TESTER CONNECTION SPECIFIED CONDITION

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

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

    Fig 1: Identifying Front Personal Light Switch
    G02993971Courtesy 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 Front Personal Light Switch Connector Terminals
    G02993972Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 
    TESTER CONNECTION SPECIFIED CONDITION

    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 Rear Personal Light Switch Connector Terminals
    G02993973Courtesy 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 Rear Personal Light Switch Connector Terminals
    G02993974Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 
    TESTER CONNECTION SPECIFIED CONDITION

    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 Room Light Switch Connector Terminals
    G02993975Courtesy 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 Room Light Switch Connector Terminals
    G02993976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 (1 Of 2)
      G02993977Courtesy 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: Inspecting Rear Room Light Switch Continuity (2 Of 2)
    G02993978Courtesy 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 Rear Room Light Switch Connector Terminals
    G02993979Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 
    TESTER CONNECTION SPECIFIED CONDITION

    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 Vanity Light Connector Terminals
    G02993980Courtesy 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 Vanity Light Connector Terminals - Wire Harness Side
    G02993981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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
    G02993982Courtesy 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 Door Courtesy Switch Connector Terminals
    G02993983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 Door Courtesy Light Connector Terminals
    G02993984Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. INSPECT DOOR COURTESY LIGHT CIRCUIT (See  PROBLEM SYMPTOMS TABLE  ) 
    Fig 15: Identifying Door Courtesy Light Connector Terminals - Wire Harness Side
    G02993985Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. INSPECT BACK DOOR COURTESY SWITCH CONTINUITY 
    TESTER CONNECTION SPECIFIED CONDITION

    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 Back Door Courtesy Switch Connector Terminals
    G02993986Courtesy 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 Back Door Courtesy Switch Connector Terminals - Wire Harness Side
    G02993987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    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 
    TESTER CONNECTION SPECIFIED CONDITION

    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 Glove Compartment Door Courtesy Switch Connector Terminals
    G02993988Courtesy 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 Licence Plate Light Connector Terminals
    G02993989Courtesy 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.

    TESTER CONNECTION SPECIFIED CONDITION

    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 Foot Light Connector Terminals - Wire Harness Side
    G02993990Courtesy 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.

    TESTER CONNECTION SPECIFIED CONDITION

    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 Inside Door Handle Connector Terminals
    G02993991Courtesy 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.

    TESTER CONNECTION SPECIFIED CONDITION

    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 Side Step Light Connector Terminals
    G02993992Courtesy 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.

    TESTER CONNECTION SPECIFIED CONDITION

    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 Outer Foot Light Connector Terminals
    G02993993Courtesy 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.

    TESTER CONNECTION SPECIFIED CONDITION

    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 Center Console Spot Light Connector Terminals
    G02993994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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