Toyota RM787U, Service And Repair Manual

Page: 1644 / 1976

BE0EV-05
BE-2
- BODY ELECTRICAL TROUBLESHOOTING
1520
Author: Date:
2001 SIENNA (RM787U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
POWER OUTLET:
Symptom Suspect Area See page
Electric power source cannot be taken out of the power outlet
1. Battery
2. POWER OUTLET Fuse (I/P J/B No.1)
3. Wire Harness
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-
-
HEADLIGHT AND TAILLIGHT SYSTEM:
Symptom Suspect Area See page
Headlight does not light up
(Taillight is normal)
1. Head Relay
2. DIM Relay
3. DRL Relay
4. Wire Harness
BE-18
BE-18
BE-18
-
Headlight and taillight does not light up
1. Body ECU (Integration relay)
2. Light contorol Switch
3. Wire Harness
DI-628
BE-18
-
Only one side headlight does not light up
1. Headlight Bulb
2. HEAD LO (LH, RH) Fuse (E/G Room R/B No.7)
3. Wire Harness
-
-
-
”Lo-Beam” does not light up
1. Headlight Bulb
2. HEAD LO (LH, RH) Fuse (E/G Room R/B No.7)
3. Headlight Control Relay (E/G Room J/B No.2)
4. Body ECU (Integration Relay)
5. Light Control Switch
6. Wire Harness
-
-
BE-18
DI-628
BE-18
-
”Hi-Beam” does not light up
1. Headlight Bulb
2. ECU-B Fuse (E/G Room J/B No.2)
3. HEAD HI (LH, RH) Fuse (E/G Room J/B No.2)
4. DRL Relay (R/B No.7)
5. DIM Relay (R/B No.7)
6. Daytime Running Light Relay (Main)
7. Headlight Dimmer Switch
8. Wire Harness
-
-
-
BE-18
BE-18
BE-18
BE-18
-
”Flash” does not light up
1. Headlight Bulb
2. ECU-B Fuse (E/G Room J/B No.2)
3. HEAD HI (LH, RH) Fuse (E/G Room J/B No.2)
4. DRL Relay (R/B No.7)
5. DIM Relay (R/B No.7)
6. Daytime Running Light Relay No.3
(E/G Room R/B No.2)
7. Headlight Dimmer Switch
8. Wire Harness
-
-
-
BE-18
BE-18
BE-18
BE-18
-
”Auto Turn-of f System” does not operate.
1. GAUGE Fuse (Driver Side J/B No.1)
2. DOME Fuse (E/G Room J/B No.2)
3. Body ECU (Integration Relay)
4. Door Courtesy Switch (Driver’s)
5. Ignition Switch
6. Wire Harness
-
-
DI-628
BE-31
BE-15
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