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LIGHTING SYSTEM (April, 2003): Inspection

  1. HEADLAMP DIMMER SWITCH ASSY 
    1. Inspect light control switch continuity.
      1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      Fig 1: Resistance Specifications
      G02900327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying C12 Connectors
      G02900328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect headlight dimmer switch continuity.
      1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      Fig 3: Headlight Dimmer Switch Continuity Table
      G02900329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      Turn light control switch to the HEAD position when checking "LOW BEAM" and "HI BEAM".

    3. Inspect turn signal switch continuity.
      1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      Fig 4: Turn Signal Switch Continuity Table
      G02900330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. w/ Fog light:

      Inspect front fog light switch continuity.

      1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified resistance
      2 - 4 OFF 10 kΩ or higher
      2 - 4 ON Below 1 Ω
  2. BACK UP LAMP SWITCH ASSY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Switch operation Specified resistance
      Ball is not pressed 10 kΩ or higher
      Ball is pressed Below 1 Ω
  3. STOP LAMP SWITCH ASSY (W/O CRUISE CONTROL) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Switch operation Specified resistance
      Switch pin free 10 kΩ or higher
      Switch pin pushed in Below 1 Ω
  4. STOP LAMP SWITCH ASSY (W/ CRUISE CONTROL) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified resistance
      1 - 2 Switch pin free 10 kΩ or higher
      3 - 4 Switch pin free Below 1 Ω
      1 - 2 Switch pin pushed in Below 1 Ω
      3 - 4 Switch pin pushed in 10 kΩ or higher
    Fig 5: Stop Lamp Switch Assy (W/ Cruise Control) Connectors
    G02900331Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. HAZARD WARNING SIGNAL SWITCH ASSY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified resistance
      2 - 3 ON Below 1 Ω
      2 - 3 OFF 10 kΩ or higher
    2. Inspect illumination operation.
      1. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, then check that the illumination comes on.
    Fig 6: Identifying Hazard Warning Signal Switch
    G02900332Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. FRONT DOOR COURTESY LAMP SWITCH ASSY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Switch operation Specified resistance
      Shaft is pressed 10 kΩ or higher
      Shaft is not pressed Below 1 Ω
  7. REAR DOOR COURTESY LAMP SWITCH ASSY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Switch operation Specified resistance
      Shaft is pressed 10 kΩ or higher
      Shaft is not pressed Below 1 Ω
  8. LUGGAGE COMPARTMENT ROOM COURTESY LAMP SWITCH ASSY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Switch operation Specified resistance
      Shaft is pressed 10 kΩ or higher
      Shaft is not pressed Below 1 Ω
  9. MAP LAMP ASSY (W/O SLIDING ROOF) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified resistance
      1 - 6 OFF 10 kΩ or higher
    2. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 6, then check that the illumination comes on when switch operation is ON position.
    Fig 7: Identifying Map Lamp Assy
    G02900333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. MAP LAMP ASSY (W/ SLIDING ROOF) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified resistance
      1 - 3 OFF 10 kΩ or higher
    2. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3, then check that the illumination comes on when switch operation is ON position.
    Fig 8: Identifying Map Lamp Assy (W/ Sliding Roof)
    G02900334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. ROOM LAMP ASSY NO. 1 
    1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, then check that the illumination comes on.
    Fig 9: Identifying Room Lamp Assy No. 1
    G02900335Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. LUGGAGE COMPARTMENT LAMP ASSY NO. 1 
    1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, then check that the illumination comes on.
  13. HEADLAMP RELAY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Condition Specified resistance
      3 - 5 Always 10 kΩ or higher
      3 - 5 Apply B+ between terminals 1 and 2 Below 1 Ω
    Fig 10: Measuring Resistance In Headlamp Relay
    G02900336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. FOG LAMP RELAY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Condition Specified resistance
      3 - 5 Always 10 WΩ or higher
      3 - 5 Apply B+ between terminals 1 and 2 Below 1 Ω
    Fig 11: Measuring Resistance In Fog Lamp Relay
    G02900337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. TAIL LAMP RELAY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Condition Specified resistance
      3 - 5 Always 10 WΩ or higher
      3 - 5 Apply B+ between terminals 1 and 2 Below 1 Ω
    Fig 12: Measuring Resistance In Tail lamp Relay
    G02900338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. HEADLAMP DIMMER RELAY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Condition Specified resistance
      3 - 5 Always 10 kΩ or higher
      3 - 5 Apply B+ between terminals 1 and 2 Below 1 Ω
    Fig 13: Measuring Resistance In Headlamp Dimmer Relay
    G02900339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. LIGHT CONTROL RHEOSTAT 
    1. Connect the connector to the rheostat and inspect the wire harness side connector from the back side as shown in the table below.

      Standard: 

      SHIM THICKNESS

      Tester connection Switch operation Specified condition
      1 - 3 Maximum position Below 1 V
      1 - 3 Minimum position 10 to 14 V
      3 - 7 OFF 10 to 14 V
      3 - 7 ON Below 1 V
    2. Inspect illumination operation.
      1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 3, then check that the illumination comes on.
    Fig 14: Inspecting Illumination Operation
    G02900340Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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