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Section 159 (Interior Light System): Inspection

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

    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 1: Inspecting Personal Light Switch Continuity
    G03381857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT PERSONAL LIGHT SWITCH CIRCUIT 

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

    WIRE HARNESS SIDE CONNECTOR INSPECTING CONDITIONS

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

    If the circuit is as specified, inspect power source or wire harness.

    Fig 2: Identifying Personal Light Switch Connector Terminals (Wire Harness Side)
    G03381858Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT INTERIOR LIGHT SWITCH 
    1. Disconnect the connector from the dome lamp.
    2. Turn the dome lamp switch ON, check that continuity exists between terminal 2 and body ground.
      Fig 3: Checking Continuity Between Dome Light Terminal 2 And Body Ground
      G03381859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the dome lamp switch DOOR, check that there is continuity exists between terminal 1 and 2.

      If operation is not as specified, replace the switch.

      Fig 4: Checking Continuity Between Dome Light Terminals 1 And 2
      G03381860Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT INTERIOR LIGHT SWITCH CIRCUIT 

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

    INTERIOR LIGHT SWITCH CIRCUIT INSPECTING CONDITIONS

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

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

    Fig 5: Identifying Interior Light Switch Connector Terminals (Wiring Harness Side)
    G03381861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT VANITY LIGHT CONTINUITY 
    VANITY LIGHT CONTINUITY CONDITIONS

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

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

    Fig 6: Inspecting Vanity Light Continuity
    G03381862Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT VANITY LIGHT SWITCH CIRCUIT 

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

    WIRE HARNESS SIDE CONNECTOR INSPECTING CONDITIONS

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

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

    Fig 7: Identifying Vanity Light Switch Connector Terminals (Wire Harness Side)
    G03381863Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT FRONT DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminals 1 and 2 with the door lock open.
    2. Check that no continuity exists between terminals 1 and 2 with the door lock closed.

      If operation is not as specified, replace the door lock.

  8. INSPECT FRONT DOOR COURTESY SWITCH CIRCUIT 

    Disconnect the connector from the door lock assembly and inspect the connector on the wire harness side.

    WIRE HARNESS SIDE CONNECTOR INSPECTING CONDITIONS

    Tester connection Condition Specified condition
    2 - Ground Constant Battery positive voltage
    Fig 8: Identifying Door Lock Position & Front Door Courtesy Switch Terminals
    G03381864Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  9. INSPECT REAR DOOR COURTESY SWITCH CONTINUITY 
    1. Check that continuity exists between terminals 1 and 2 with the door lock open.
    2. Check that no continuity exists between terminals 1 and 2 with the door lock closed.

      If operation is not as specified, replace the door lock.

      Fig 9: Identifying Door Lock Positions & Rear Door Courtesy Switch Terminals
      G03381865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSPECT REAR DOOR COURTESY SWITCH CIRCUIT 

    Disconnect the connector from the door lock assembly and inspect the connector on the wire harness side.

    WIRE HARNESS SIDE CONNECTOR INSPECTING CONDITIONS

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

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

    Fig 10: Locating Wire Harness Side Connector Terminals
    G03381866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSPECT BACK DOOR COURTESY SWITCH CONTINUITY 
    BACK DOOR COURTESY SWITCH CONTINUITY CONDITIONS

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

    If continuity is not as specified, replace the switch and motor.

    Fig 11: Identifying Back Door Courtesy Switch Terminals
    G03381867Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSPECT BACK DOOR COURTESY SWITCH CIRCUIT 

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

    Fig 12: Identifying Back Door Courtesy Switch Terminals (Wire Harness Side)
    G03381868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WIRE HARNESS SIDE CONNECTOR INSPECTING CONDITIONS

    Tester connection Condition Specified condition
    1 - Ground Luggage compartment door opener switch OFF No voltage
    1 - Ground Luggage compartment door opener switch ON Battery positive voltage
    2 - Ground Constant Battery positive voltage

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

  13. INSPECT ILLUMINATED ENTRY SYSTEM (See  INTERIOR LIGHTS  ) 
  14. INSPECT DOOR COURTESY LIGHT CONTINUITY 

    Using the ohmmeter, check that there is continuity between terminals.

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

    Fig 13: Identifying Door Courtesy Light Terminals
    G03381869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. INSPECT GLOVE COMPARTMENT DOOR LIGHT SWITCH CONTINUITY 
    GLOVE COMPARTMENT DOOR LIGHT SWITCH CONTINUITY CONDITIONS

    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 14: Inspecting Glove Compartment Door Light Switch
    G03381870Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSPECT GLOVE COMPARTMENT DOOR LIGHT CIRCUIT 

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

    Fig 15: Identifying Glove Compartment Door Light Switch Connector Terminals (Wire Harness Side)
    G03381871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 16: Glove Compartment Door Light Switch Wire Harness Side Connector Inspecting Conditions
    G03381872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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