± BODY ELECTRICALTROUBLESHOOTING
BE±7
2308 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INTERIOR LIGHT SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
All the lights do not come ON.1. DOME Fuse
2. Body ECU NO.2BE±21
±
The light does not come ON when the driver's door is opened.1. Driver's Door Courtesy Switch
2. Wire HarnessBE±60
±
The light does not come ON when the passenger's door is
opened.1. Passenger's Door Courtesy Switch
2. Wire HarnessBE±60
±
The light does not come on when the rear±right door is opened.1. Rear±Right Door Courtesy Switch
2. Wire HarnessBE±60
±
The light does not come on when the rear±left door is opened.1. Rear±Left Door Courtesy Switch
2. Wire HarnessBE±60
±
Only one of the bulbs comes ON.Bulb±
The illumination does not fade out when all the doors are closed.1. Courtesy Switch
2. Wire HarnessBE±60
±
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
3. GAUGE Fuse
4. Wire HarnessBE±31
BE±21
BE±21
±
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. Wire HarnessBE±131
±
Interior light does not light up.
(in front personal light)1. Bulb
2. Front Personal Light
3. Wire Harness±
BE±60
±
Front personal light does not light up.
1. Bulb
2. Front Personal Light
3. Wire Harness±
BE±60
±
Rear personal light does not light up.
1. Bulb
2. Rear Personal Light
3. Wire Harness±
BE±60
±
Vanity light does not light up.
1. Bulb
2. Vanity Light
3. Wire Harness±
BE±60
±
Luggage compartment light does not light up.
1. Bulb
2. Luggage Compartment Door Courtesy Switch
3. Wire Harness±
BE±60
±
Courtesy light does not light up.
1. Bulb
2. Door Courtesy Switch
3. Wire Harness±
BE±60
±
BE0GY±05
I01354
Front Personal Light
Rear Personal Light
Door Courtesy Light
Licence Plate Light Luggage Compartment Light
Door Courtesy Lights
Luggage Compartment
Courtesy Switch
Door Courtesy Light
Vanity Light
Vanity Light
Rheostat Light Control
Glove Compartment
Door Courtesy Light
Glove Compartment
Door Courtesy Switch
Passenger Side Junction Block
DOME Fuse
Body ECU No.1
Driver Side Junction Block
Body ECU No.2
Luggage
Compartment
Key Lock and
Unlock Switch
Rear Personal Light Rear Personal Light
± BODY ELECTRICALINTERIOR LIGHT SYSTEM
BE±59
2360 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INTERIOR LIGHT SYSTEM
LOCATION
