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Section 232 (Interior Light System): Inspection

WARNING: This page is about a different car, the 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. w/Sliding Roof: INSPECT FRONT PERSONAL LIGHT SWITCH CONTINUITY 
    SWITCH POSITION 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 bulb.

    Fig 1: Identifying Front Personal Light Switch Connector Terminals
    G03379900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. w/o Sliding Roof: INSPECT FRONT PERSONAL LIGHT SWITCH CONTINUITY 
    SWITCH POSITION 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 bulb.

    Fig 2: Identifying Front Personal Light Switch Connector Terminals
    G03379901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT FRONT PERSONAL LIGHT SWITCH CIRCUIT (See  CIRCUIT DESCRIPTION  ) 
  4. w/o Reader sensor: INSPECT ROOM LIGHT CONTINUITY 
    1. Disconnect the connector from the room light.
    2. Turn the room light switch ON, check that continuity exists between terminal 2 and body ground.
      Fig 3: Inspecting Room Light Continuity - w/o Reader Sensor (Terminal 2 And Body Ground)
      G03379902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the room light switch DOOR, check that continuity exists between terminals 1 and 2.

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

      Fig 4: Inspecting Room Light Continuity - w/o Reader Sensor (Terminals 1 And 2)
      G03379903Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. w/ Reader sensor: INSPECT ROOM LIGHT CONTINUITY 
    1. Disconnect the connector from the room light.
    2. Turn the room light switch ON, check that continuity exists between terminal 2 and 3.
      Fig 5: Inspecting Room Light Continuity - w/ Reader Sensor (Terminal 2 And 3)
      G03379904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the room light switch DOOR, check that continuity exists between terminals 1 and 3.

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

      Fig 6: Inspecting Room Light Continuity - w/ Reader Sensor (Terminal 1 And 3)
      G03379905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT FRONT DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminals and the switch body with the switch ON (switch pin released: opened door).
    2. Check that no continuity exists between terminals and the switch body with the switch OFF (switch pin pushed in: closed door).

      If operation is not as specified, replace the switch.

      Fig 7: Inspecting Front Door Courtesy Switch Continuity
      G03379906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT REAR DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminals and the switch body with the switch ON (switch pin released: opened door).
    2. Check that no continuity exists between terminals and the switch body with the switch OFF (switch pin pushed in: closed door).

      If operation is not as specified, replace the switch.

      Fig 8: Inspecting Rear Door Courtesy Switch Continuity
      G03379907Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminals and the switch body with the switch ON (switch pin released: opened door).
    2. Check that no continuity exists between terminals and the switch body with the switch OFF (switch pin pushed in: closed door).

      If operation is not as specified, replace the switch.

      Fig 9: Inspecting Luggage Compartment Door Courtesy Switch Continuity
      G03379908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSPECT LUGGAGE COMPARTMENT LIGHT CONTINUITY 

    Using the ohmmeter, check that continuity exists between terminals.

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

    Fig 10: Inspecting Luggage Compartment Light Continuity
    G03379909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REAR ROOM LIGHT SWITCH CONTINUITY 
    SWITCH POSITION SPECIFIED CONDITION

    Switch position Tester connection Specified condition
    OFF 1 - 2 No continuity
    ON 2 - 3 Continuity

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

    Fig 11: Identifying Rear Room Light Switch Connector Terminals
    G03379910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSPECT VANITY LIGHT CONTINUITY 
    SWITCH POSITION 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 bulb.

    Fig 12: Identifying Vanity Light Connector Terminals
    G03379911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSPECT VANITY LIGHT CIRCUIT (See  CIRCUIT DESCRIPTION  ) 

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

    Fig 13: Identifying Vanity Light Connector Terminals
    G03379912Courtesy 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.

  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 bulb.

    Fig 14: Identifying Door Courtesy Light Connector Terminals
    G03379913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. INSPECT DOOR COURTESY LIGHT CIRCUIT (See  CIRCUIT DESCRIPTION  ) 
    Fig 15: Identifying Door Courtesy Light Connector Terminals (Wire Harness Side)
    G03379914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY 
    SWITCH POSITION SPECIFIED CONDITION

    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 16: Inspecting Luggage Compartment Door Courtesy Switch Continuity
    G03379915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. BACK DOOR COURTESY SWITCH CONTINUITY 
    SWITCH POSITION SPECIFIED CONDITION

    Switch position Tester connection Specified condition
    OFF (closed) - No continuity
    ON (opened) 3 - 4 Continuity

    If continuity is not as specified, replace the switch.

    Fig 17: Inspecting Back Door Courtesy Switch Continuity
    G03379916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT (See  CIRCUIT DESCRIPTION  ) 

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

    Fig 18: Identifying Luggage Compartment Door Courtesy Switch Connector Terminals
    G03379917Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION 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.

  18. INSPECT LICENSE 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: Inspecting License Plate Light Continuity
    G03379918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. INSPECT LICENSE PLATE LIGHT CIRCUIT 

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

    Fig 20: Inspecting License Plate Light Connector Terminals
    G03379919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    Tester connection Condition Specified condition
    1 - Ground Always 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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