- BODY ELECTRICALTROUBLESHOOTING
BE-3
2376 Author: Date:
2004 LAND CRUISER (RM1071U) Headlight does not come on.
1. Engine Room J/B Relay Circuit
2. Body ECU
3. Daytime Running Light No.3, 4 Relays
4. Headlight Dimmer Switch
5. Light Control Switch
6. Wire Harness
7. BulbBE-15
BE-32
BE-32
BE-32
BE-32
-
-
Headlight does not come on with light control switch in HEAD.1. Light Control Switch
2. Wire HarnessBE-32
-
Headlight does not go out with light control switch in OFF.1. Engine Room J/B Relay Circuit
2. Wire HarnessBE-15
-
Headlight flickers.1. Bulb
2. Wire Harness-
-
Headlight is dark.1. Bulb
2. Wire Harness-
-
Taillight does not come on with light control switch in TAIL.
1. Engine Room J/B Relay Circuit
2. Light Control Switch
3. Wire HarnessBE-15
BE-32
-
Taillight does not go out with light control switch in OFF.
1. Engine Room J/B Relay Circuit
2. Light Control Switch
3. Wire HarnessBE-15
BE-32
-
Headlight does not come on with engine running and light control
switch in OFF.
1. ECU-B1 Fuse
2. ECU-IG1 Fuse
3. Body ECU
4. Daytime Running Light No.3, 4 Relays
5. Generator L Terminal
6. Parking Brake Switch
7. Wire Harness-
-
BE-32
BE-32
CH-10
BE-63
-
FOG LIGHT SYSTEM:
SymptomSuspect AreaSee page
Fog light does not light up with light control SW HEAD
(Headlight is normal.)
1. FOG Fuse
2. Engine Room J/B Relay Circuit
3. Fog Light Switch
4. Wire Harness-
BE-15
BE-37
-
Fog light does not light up with light control SW HEAD
(Headlight does not light).1.*1 Other Parts
2. Wire Harness-
-
Only one light does not light up.1. Bulb
2. Wire Harness-
-
*1: Inspect Headlight System
TURN SIGNAL AND HAZARD WARNING SYSTEM:
SymptomSuspect AreaSee page
ºHazardº and ºTurnº do not light up.
1. ECU-IG2 Fuse
2. TURN HAZ Fuse
3. Ignitioin Switch
4. Turn Signal Flasher Relay
5. Wire Harness-
-
BE-29
BE-40
-
Hazard warning light does not light up.
(Turn is normal)1. Hazard Warning Switch
2. Wire HarnessBE-40
-
Turn signal does not light up.
(Hazard is normal)1. Turn Signal Switch
2. Wire HarnessBE-40
-
BE-4
- BODY ELECTRICALTROUBLESHOOTING
2377 Author: Date:
2004 LAND CRUISER (RM1071U) Turn signal does not light up in one direction.
1. Turn Signal Switch
2. Wire HarnessBE-40
-
Only one bulb does not light up.1. Bulb
2. Wire Harness-
-
INTERIOR LIGHT SYSTEM:
This system uses the body control system, so check the body control system before you proceed with trou-
bleshooting(See page DI-1038).
SymptomSuspect AreaSee page
All the lights do not come ON.
1. DOME Fuse
2. Body ECU
3. DOME Relay(Cowl Side J/B LH)-
DI-1038
-
The light does not come ON when the driver's door is opened.1. Driver's Door Courtesy Switch
2. Wire HarnessBE-44
-
The light does not come ON when the passenger's door is
opened.1. Passenger's Door Courtesy Switch
2. Wire HarnessBE-44
-
The light does not come on when the rear-right door is opened.1. Rear-Right Door Courtesy Switch
2. Wire HarnessBE-44
-
The light does not come on when the rear-left door is opened.1. Rear-Left Door Courtesy Switch
2. Wire HarnessBE-44
-
Only one of the bulbs comes ON.1. Bulb-
The illumination does not fade out when all the doors are closed.
1. Courtesy Switch
2. Wire Harness
3. Boby ECUBE-44
-
DI-1038
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. ACC Fuse
3. ECU-IG1 Fuse
4. Body ECU
5. Wire HarnessBE-29
-
-
DI-1038
-
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-88
-
Room light does not light up.
1. Bulb
2. Room Light
3. Rear Personal Light
4. Wire Harness-
BE-44
BE-44
-
Front personal light does not light up.
1. Bulb
2. Front Personal Light
3. Room Light
4. Wire Harness-
BE-44
BE-44
-
Rear Room light does not light up.
1. Bulb
2. Rear Room Light
3. Wire Harness-
BE-44
-
Vanity light does not light up.
1. Bulb
2. Vanity Light
3. Wire Harness-
BE-44
-
Glove compartment light does not light up.
1. Bulb
2. Glove Compartment Courtesy Switch
3. Wire Harness-
BE-44
-
Courtesy light does not light up.
1. Bulb
2. Door Courtesy Switch
3. Wire Harness-
BE-44
-
