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Interior Light System

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

INTERIOR LIGHT SYSTEM TROUBLE SYMPTOMS REFERENCE

Symptom Suspect Area See Section
All the lights do not come ON.
  1. DOME Fuse (Engine Room J/B)
  2. Body ECU
  1. -
  2. HOW TO PROCEED WITH TROUBLESHOOTING
The light does not come ON when the driver's door is opened.
  1. Driver's Door Courtesy Switch
  2. Driver Door ECU
  3. Multiplex Communication Circuit
  4. Body ECU
  5. Wire Harness
  1. INSPECTION
  2. FRONT DOOR
  3. TROUBLE SHOOTING
  4. HOW TO PROCEED WITH TROUBLESHOOTING
  5. -
The light does not come ON when the passenger's door is opened.
  1. Passenger's Door Courtesy Switch
  2. Front Passenger Door ECU
  3. Multiplex Communication Circuit
  4. Body ECU
  5. Wire Harness
  1. INSPECTION
  2. TROUBLE SHOOTING
  3. TROUBLE SHOOTING
  4. HOW TO PROCEED WITH TROUBLESHOOTING
  5. -
The light does not come on when the rear-right door is opened.
  1. Rear-Right Door Courtesy Switch
  2. Body ECU
  3. Wire Harness
  1. INSPECTION
  2. HOW TO PROCEED WITH TROUBLESHOOTING
  3. -
The light does not come on when the rear-left door is opened.
  1. Rear-Left Door Courtesy Switch
  2. Body ECU
  3. Wire Harness
  1. INSPECTION
  2. HOW TO PROCEED WITH TROUBLESHOOTING
  3. -
Only one of the bulbs comes ON.
  1. Bulb
  1. -
The illumination does not fade out when all the doors are closed.
  1. Courtesy Switch
  2. Driver Door ECU
  3. Front Passenger Door ECU
  4. Multiplex Communication Circuit
  5. Body ECU
  6. Wire Harness
  1. INSPECTION
  2. FRONT DOOR
  3. TROUBLE SHOOTING
  4. TROUBLE SHOOTING
  5. HOW TO PROCEED WITH TROUBLESHOOTING
  6. -
The illumination does not fade out immediately when the ignition switch is turned to ACC or ON within 15 seconds after all the doors are closed.
  1. Ignition Switch
  2. RADIO NO. 2 Fuse (Instrument Panel J/B)
  3. GAUGE Fuse (Instrument Panel J/B)
  4. Body ECU
  5. Wire Harness
  1. ADJUSTMENT
  2. -
  3. HOW TO PROCEED WITH TROUBLESHOOTING
  4. -
  5. -
The illumination does not fade out immediately when all the doors are locked within 15 seconds after they are closed.
  1. Door Unlock Detection Switch
  2. Driver Door ECU
  3. Front Passenger Door ECU
  4. Multiplex Communication Circuit
  5. Body ECU
  6. Wire Harness
  1. TROUBLE SHOOTING
  2. FRONT DOOR
  3. TROUBLE SHOOTING
  4. TROUBLE SHOOTING
  5. HOW TO PROCEED WITH TROUBLESHOOTING
  6. -
Interior light does not light up.
(in front personal light)
  1. Bulb
  2. Front Personal Light
  3. Wire Harness
  1. -
  2. INSPECTION
  3. -
Front personal light does not light up.
  1. Bulb
  2. Front Personal Light
  3. Wire Harness
  1. -
  2. INSPECTION
  3. -
Rear personal light does not light up.
  1. Bulb
  2. Rear Personal Light
  3. Wire Harness
  1. -
  2. INSPECTION
  3. -
Vanity light does not light up.
  1. Bulb
  2. Vanity Light
  3. Wire Harness
  1. -
  2. INSPECTION
  3. -
Luggage compartment light does not light up.
  1. Bulb
  2. Luggage Compartment Door Courtesy Switch
  3. Wire Harness
  1. INSPECTION
  2. -
  3. -
Courtesy light does not light up.
  1. Bulb
  2. Door Courtesy Switch
  3. Wire Harness
  1. -
  2. INSPECTION
  3. -
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