Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra be trouexcd pst

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BE-14
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

TROUBLESHOOTING (Except Double Cab)
BE2JX-02

PROBLEM SYMPTOMS TABLE
POWER OUTLET
Symptom Suspected Area See Page
1. PWR OUTLET1 Fuse BE-29
2. PWR OUTLET2 Fuse BE-29
3. ECU-B Fuse BE-29
4. DOME Fuse BE-29
Electric power source cannot be out of the power outlet.
5. POWER OUTLET Relay BE-34
6. ACC CUT Relay BE-34
7. Ignition Switch BE-37
8. Wire Harness -
IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH
Symptom Suspected Area See Page
1. Ignition Switch BE-37
Ignition switch cannot be turned to any position.
2. Power Source Circuit -
1. DOME Fuse BE-29
2. Key Unlock Warning Switch BE-37
3. Door Courtesy Switch BE-61
Key unlock warning system does not operate.
4. Meter Circuit Plate BE-82
5. Wire Harness -
6. Integration Relay (Driver Side J/B) BE-41

w/ Daytime running light:
HEADLIGHT AND TAILLIGHT SYSTEM
Symptom Suspected Area See Page
1. HEAD (LL, RL, LH, RH) Fuse BE-29
Only one headlight does not light up. 2. Bulb -
3. Wire Harness -
1. HEAD (LL, RL, LH,RH) Fuse BE-29
2. TAIL Fuse BE-29
3. ECU-IG Fuse BE-29
4. H-LP Relay BE-41
5. DIMMER Relay BE-41
Both headlights do not light up. 6. DRL NO. 4 Relay BE-41
7. Daytime Running Light Resistor BE-41
8. Light Control Switch BE-41
9. Bulb BE-41
10. Integration Relay BE-41
11. Wire Harness -

1. HEAD (LL, RL) Fuse BE-29
Lo-beam does not operate on one side. 2. Bulb -
3. Wire Harness -
1. DIMMER Relay BE-41
Lo-beam does not operate on both sides. 2. Headlight Dimmer Switch BE-41
3. Wire Harness -
1. H-LP (LH, RH) Fuse BE-29
Hi-beam does not operate on one side. 2. Bulb -
3. Wire Harness -
1. DIMMER Relay BE-41
Hi-beam does not operate on both sides. 2. Headlight Dimmer Switch BE-41
3. Wire Harness -
BE-15
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. Headlight Dimmer Switch BE-41
2. Integration Relay BE-41
Flash does not operate.
3. Bulb -
4. Wire Harness -

1. Bulb -
Headlight flickers. 2. Integration Relay BE-41
3. Wire Harness -
1. Bulb -
Headlight is dark. 2. Integration Relay BE-41
3. Wire Harness -
1. TAIL Fuse BE-29
2. ECU-IG Fuse BE-29
Headlights do not light up while engine is running, light control 3. Parking Brake Switch BE-86
switch is OFF and parking brake is released. 4. Integration Relay BE-41
5. Generator -
6. Wire Harness -

1. Bulb -
Only one taillight does not light up.
2. Wire Harness -

1. TAIL Fuse BE-29
2. Light Control Switch BE-41
Taillights do not light up with light control switch in TAIL position. 3. Integration Relay BE-41
4. Bulb -
5. Wire Harness -

w/o Daytime running light:
HEADLIGHT AND TAILLIGHT SYSTEM
Symptom Suspected Area See Page
1. HEAD (LH, RH) Fuse BE-29
Only one headlight does not light up. 2. Bulb -
3. Wire Harness -
1. HEAD (LH, RH) Fuse BE-29
2. H-LP Relay BE-41
3. Light Control Switch BE-41
Both headlights do not light up.
4. Bulb -
5. Integration Relay BE-41
6. Wire Harness -

1. Bulb -
Lo-beam does not operate on one side.
2. Wire Harness -
1. Headlight Dimmer Switch BE-41
Lo-beam does not operate on both sides.
2. Wire Harness -

1. Bulb -
Hi-beam does not operate on one side.
2. Wire Harness -

1. Headlight Dimmer Switch BE-41
Hi-beam does not operate on both sides.
2. Wire Harness -

1. Headlight Dimmer Switch BE-41
Flash does not operate.
2. Wire Harness -
1. Bulb -
Headlight flickers. 2. Integration Relay BE-41
3. Wire Harness -
1. Bulb -
Headlight is dark. 2. Integration Relay BE-41
3. Wire Harness -
BE-16
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. Bulb -
Only one taillight does not light up.
2. Wire Harness -

1. TAIL Fuse BE-29
2. Light Control Switch BE-41
Taillights do not light up with light control switch in TAIL position. 3. Integration Relay BE-41
4. Bulb -
5. Wire Harness -

FOG LIGHT SYSTEM
Symptom Suspected Area See Page
1. FOG Fuse BE-29
2. FOG Relay BE-49
Fog lights do not light up with light control switch in HEAD posi-
3. Fog Light Switch BE-49
tion. Headlights are normal.
4. Integration Relay BE-41
5. Wire Harness -
Fog lights do not light up with light control switch in HEAD posi- 1. Other Parts* -
tion. Headlights do not light up. 2. Wire Harness -

1. Bulb -
Only one fog light does not light up.
2. Wire Harness -

HINT:
*: Inspect the headlight system.
TURN SIGNAL LIGHT AND HAZARD WARNING LIGHT SYSTEM
Symptom Suspected Area See Page
1. TURN Fuse BE-29
2. HAZ Fuse BE-29
3. Ignition Switch BE-37
Hazard warning lights and turn signal lights do not flash.
4. Turn Signal Switch BE-53
5. Turn Signal Flasher Relay BE-53
6. Wire Harness -

1. Hazard Warning Switch BE-53
Hazard warning lights do not flash. Turn signal lights are normal.
2. Wire Harness -

1. Turn Signal Flasher Relay BE-53
Turn signal lights do not flash.
2. Wire Harness -

1. Turn Signal Switch BE-53
Turn signal lights do not flash on one side.
2. Wire Harness -
1. Bulb -
Only one bulb does not flash.
2. Wire Harness -

INTERIOR LIGHT SYSTEM
Symptom Suspected Area See Page
All lights do not light up. DOME Fuse BE-29
1. Driver's Door Courtesy Switch BE-61
Light does not light up when driver's door is opened.
2. Wire Harness -

1. Passenger's Door Courtesy Switch BE-61
Light does not light up when passenger's door is opened.
2. Wire Harness -

1. RH Access Door Courtesy Switch BE-61
Light does not light up when RH access door is opened.
2. Wire Harness -
1. LH Access Door Courtesy Switch BE-61
Light does not light up when LH access door is opened.
2. Wire Harness -

1. Courtesy Switch BE-61
Light does not fade out when all doors are closed.
2. Wire Harness -

Light does not fade out when all doors are locked within 15 1. Door Unlock Detection Switch BE-128
seconds after they are closed. 2. Wire Harness -
BE-17
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. DOME Fuse BE-29
2. Bulb -
Personal light does not light up.
3. Front Personal Light BE-128
4. Wire Harness -

1. DOME Fuse BE-29
2. Bulb -
Vanity light does not light up.
3. Vanity Light BE-128
4. Wire Harness -
1. DOME Fuse BE-29
2. Bulb -
Door courtesy light does not light up.
3. Door Courtesy Switch BE-128
4. Wire Harness -

BACK-UP LIGHT SYSTEM
Symptom Suspected Area See Page
1. GAUGE Fuse BE-29
2. Bulb -
3. Ignition Switch BE-37
Back-up lights do not light up. 4. Back-up Light Switch (M/T) BE-67
5. Park/neutral Position Switch (A/T) BE-67
6. BACK-UP Light Relay (A/T) BE-67
7. Wire Harness -
1. Back-up Light Switch (M/T) BE-67
Back-up lights remain on. 2. Park/neutral Position Switch (A/T) BE-67
3. Wire Harness -
1. Bulb -
Only one light does not light up.
2. Wire Harness -

STOP LIGHT SYSTEM
Symptom Suspected Area See Page
1. STOP Fuse BE-29
Stop lights do not light up. 2. Stop Light Switch BE-70
3. Wire Harness -
1. Stop Light Switch BE-70
Stop lights remain on.
2. Wire Harness -

1. Bulb -
Only one light does not light up.
2. Wire Harness -

CARGO LIGHT SYSTEM
Symptom Suspected Area See Page
1. CARGO LP Fuse BE-29
2. Bulb -
Cargo light does not light up. 3. Cargo Light Switch BE-72
4. Integration Relay BE-128
5. Wire Harness -

WIPER AND WASHER SYSTEM
Symptom Suspected Area See Page
1. WIP Fuse BE-29
2. Ignition Switch BE-37
Wipers and washer do not operate.
3. Wiper and Washer Switch BE-76
4. Wire Harness -

1. Wiper and Washer Switch BE-76
Wipers do not operate. 2. Wiper Motor BE-76
3. Wire Harness -
BE-18
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. Wiper and Washer Switch BE-76
Washer motor does not operate. 2. Washer Motor BE-76
3. Wire Harness -
Washer fluid is not injected Washer Hose and Nozzles -
COMBINATION METER (Meter, Gauges and Illumination Lights)
Symptom Suspected Area See Page
1. GAUGE Fuse BE-29
Tachometer, fuel gauge and engine coolant temperature gauge do
2. Meter Circuit Plate BE-82
not operate.
3. Wire Harness -
1. Vehicle Speed Sensor BE-86
Speedometer does not operate. 2. Meter Circuit Plate BE-86
3. Wire Harness -
1. Igniter (1GR-FE) -
2. ECM (2UZ-FE) -
Tachometer does not operate.
3. Meter Circuit Plate BE-86
4. Wire Harness -

1. Fuel Receiver Gauge BE-86
2. Fuel Sender Gauge BE-86
Fuel gauge does not operate or operates abnormally.
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. Engine Coolant Temperature Receiver Gauge BE-86
Engine coolant temperature gauge does not operate or operates 2. Engine Coolant Temperature Sender Gauge BE-86
abnormally. 3. Meter Circuit Plate BE-82
4. Wire Harness -

1. Voltmeter BE-86
Voltmeter does not operate. 2. Meter Circuit Plate BE-82
3. Wire Harness -
1. TAIL Fuse BE-29
2. Light Control Rheostat BE-86
All illumination lights do not light up.
3. Integration Relay BE-41
4. Wire Harness -

1. Bulb -
Brightness does not change even when rheostat is turned. 2. Light Control Rheostat BE-86
3. Wire Harness -
1. Bulb -
Only one illumination light does not light up.
2. Wire Harness -

COMBINATION METER (Warning Lights)
Symptom Suspected Area See Page
1. LED -
Only discharge warning lights light up. 2. GAUGE Fuse BE-29
Other warning lights do not light up. 3. Meter Circuit Plate BE-82
4. Wire Harness -

1. LED -
2. Low Oil Pressure Warning Switch BE-86
Low oil pressure warning light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -

1. LED -
2. Fuel Level Warning Switch BE-86
Fuel level warning light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -
BE-19
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. LED -
2. Meter Circuit Plate BE-82
ABS warning light does not light up. 3. Skid Control ECU DI-1385
DI-1469
4. Wire Harness -
1. LED -
2. Seat Belt Buckle Switch BE-86
Seat belt warning light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. IGN Fuse BE-29
2. LED -
Discharge warning light does not light up. 3. Meter Circuit Plate BE-82
4. Wire Harness -
5. Generator -
1. LED -
2. Parking Brake Switch BE-86
3. Brake Fluid Level Warning Switch BE-86
Brake warning light does not light up. 4. Meter Circuit Plate BE-82
5. Skid Control ECU DI-1385
DI-1469
6. Wire Harness -
1. LED -
2. Skid Control ECU DI-1385
VSC TRAC warning light does not light up. DI-1469
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
2. ATF Temperature Sensor DI-999
DI-1166
ATF temperature warning light does not light up.
3. ECM -
4. Meter Circuit Plate BE-82
5. Wire Harness -

1. LED -
2. Airbag Sensor Assembly DI-1827
SRS warning light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -

1. DOME Fuse BE-29
2. LED -
Door open warning light does not light up. 3. Door Courtesy Switch BE-61
4. Meter Circuit Plate BE-82
5. Wire Harness -
1. LED -
2. Washer Fluid Level Warning Switch BE-86
Washer level warning light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -

COMBINATION METER (Indicator Lights)
Symptom Suspected Area See Page
1. LED -
2. 4WD Control ECU (2UZ-FE) TR-39
"4LO" indicator light does not light up. 3. Meter Circuit BE-82
4. Integration Control Panel AC-83
5. Wire Harness -
BE-20
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. LED -
2. A.D.D. Actuator (1GR-FE) TR-39
3. 4WD Control ECU (2UZ-FE) TR-39
"4HI/4WD" indicator light does not light up.
4. Meter Circuit Plate BE-82
5. Integration Control Panel AC-83
6. Wire Harness -

1. LED -
2. O/D Main Switch DI-1102
DI-1274
O/D OFF indicator light does not light up. 3. ECM DI-9
DI-428
4. Meter Circuit Plate BE-82
5. Wire Harness -
1. LED -
2. Skid Control ECU DI-1385
AUTO LSD indicator light does not light up. DI-1469
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
2. Skid Control ECU DI-1385
VSC OFF indicator light does not light up. DI-1469
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
2. Skid Control ECU DI-1385
SLIP indicator light does not light up. DI-1469
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
2. ECM DI-9
Cruise control indicator light does not light up. DI-428
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
2. Headlight and Taillight System BE-41
High-beam indicator light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -

1. LED -
2. Turn Signal and Hazard Warning System BE-53
Turn signal indicator light does not light up.
3. Meter Circuit Plate BE-82
4. Wire Harness -

1. LED -
2. Park/Neutral Position Switch DI-993
Shift indicator light does not light up. DI-1159
3. Meter Circuit Plate BE-82
4. Wire Harness -
1. LED -
Only one shift indicator light does not light up.
2. Meter Circuit Plate BE-82
1. LED -
2. ECM DI-9
MIL does not light up. DI-428
3. Meter Circuit Plate BE-82
4. Wire Harness -
BE-21
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. LED DI-428
OIL MAINT indicator does not light up. 2. Resetting Procedure BE-86
3. Wire Harness -
1. LED DI-428
2. Skid Control ECU DI-1385
Tire pressure indicator does not light up. DI-1469
3. Meter Circuit Plate BE-82
4. Wire Harness -

MIRROR HEATER SYSTEM
Symptom Suspected Area See Page
1. GAUGE Fuse BE-29
2. Mirror Heater Switch BE-107
Mirror heater system does not operate. 3. Ignition Switch BE-37
4. MIR HTR Relay BE-107
5. Wire Harness -

POWER WINDOW CONTROL SYSTEM
Symptom Suspected Area See Page
1. ECU-IG Fuse BE-29
Power window does not operate. 2. POWER Relay BE-114
Power door lock does not operate. 3. Ignition Switch BE-37
4. Integration Relay BE-128

Power window does not operate. 1. Power Window Master Switch BE-114
Power door lock is normal. 2. Wire Harness -

One-touch power window system does not operate. Power Window Master Switch BE-114
1. Power Window Master Switch BE-114
2. Power Window Control Switch BE-114
Only one window does not move.
3. Power Window Motor BE-114
4. Wire Harness -
Window lock system does not operate. Power Window Master Switch BE-114
1. ECU-IG Fuse BE-29
2. POWER Relay BE-114
3. Ignition Switch BE-37
Key-off power window does not operate.
4. Door Courtesy Switch BE-61
5. Integration Relay BE-128
6. Wire Harness -

POWER SLIDE BACK WINDOW SYSTEM
Symptom Suspected Area See Page
1. ECU-IG Fuse BE-114
Power slide back window does not operate. 2. POWER Relay BE-114
Power window does not operate. 3. Ignition Switch BE-37
4. Integration Relay BE-128

1. Power Slide Back Window Switch BE-122
Power slide back window does not operate.
2. Power Slide Back Window Motor BE-122
Power window is normal.
3. Wire Harness -
POWER DOOR LOCK CONTROL SYSTEM
Symptom Suspected Area See Page
1. ECU-IG Fuse BE-29
2. POWER Fuse BE-29
Entire door lock system does not operate.
3. Integration Relay BE-128
4. Wire Harness -
BE-22
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

1. Door Lock Control Switch BE-128
2. Door Unlock Detection Switch BE-128
Manual door lock/unlock switch does not operate.
3. Integration Relay BE-128
4. Wire Harness -

1. Door Key Lock and Unlock Switch BE-128
2. Integration Relay BE-128
Door lock/unlock key does not operate.
3. Wire Harness -
4. Door Lock Link Disconnected -
1. Key Unlock Warning Switch BE-37
2. Door Courtesy Switch BE-61
Key confine prevention function does not operate.
3. Integration Relay BE-180
4. Wire Harness -

1. Door Lock Motor BE-180
Only one door lock does not operate.
2. Wire Harness -

TOYOTA VEHICLE INTRUSION PROTECTION (TVIP) SYSTEM
Symptom Suspected Area See Page
TOYOTA vehicle intrusion protection (TVIP) system operates
TROUBLESHOOTING DI-2297
abnormally.

WIRELESS DOOR LOCK CONTROL SYSTEM
HINT:
Troubleshooting of the wireless door lock control system is based on the premise that the door lock control
system is operating normally. Accordingly, before troubleshooting the wireless door lock control system, first
make certain that the door lock control system is operating normally.
Symptom Suspected Area See Page
1. Transmitter BE-180
Entire wireless door lock control system does not operate. 2. TVIP ECU DI-2297
3. Wire Harness -
1. TVIP Buzzer
Wireless door lock operates, but the buzzer does not sound. 2. TVIP ECU DI-2297
3. Wire Harness -
POWER SEAT CONTROL SYSTEM
Symptom Suspected Area See Page
1. POWER Fuse BE-114
Power seat does not operate. 2. Power Seat Swtich BE-184
3. Wire Harness -
1. Power Seat Switch BE-184
Slide operation does not operate. 2. Slide Motor BE-184
3. Wire Harness -
1. Power Seat Switch BE-184
Front tilt operation does not operate. 2. Front Tilt Motor BE-184
3. Wire Harness -
1. Power Seat Switch BE-184
Rear lifter operation does not operate. 2. Rear Lifter Motor BE-184
3. Wire Harness -
1. Power Seat Switch BE-184
Reclining operation does not operate. 2. Reclining Motor BE-184
3. Wire Harness -
1. Lumbar Support Switch BE-184
Lumbar support operation does not operate. 2. Lumbar Support Motor BE-184
3. Wire Harness -
BE-23
BODY ELECTRICAL - TROUBLESHOOTING (Except Double Cab)

POWER MIRROR CONTROL SYSTEM
Symptom Suspected Area See Page
1. ACC Fuse BE-114
2. ECU-B Fuse (2UZ-FE) BE-114
3. ACC CUT Relay (2UZ-FE) BE-192
4. Ignition Switch BE-37
Mirror does not operate.
5. Mirror Switch BE-192
6. Mirror Motor BE-192
7. ECM (2UZ-FE) DI-428
8. Wire Harness -
1. Mirror Switch BE-192
Mirror operates abnormally. 2. Mirror Motor BE-192
3. Wire Harness -
ELECTRO CHROMIC MIRROR SYSTEM
Symptom Suspected Area See Page
1. GAUGE Fuse BE-24
Electro chromic mirror does not operate. 2. Electro Chromic Mirror BE-189
3. Wire Harness -
CLOCK SYSTEM (in A/C Control Panel)
Symptom Suspected Area See Page
Clock does not operate. TROUBLESHOOTING NO. 1 BE-200
Clock loses or gains time. TROUBLESHOOTING NO. 2 BE-200
NAVIGATION SYSTEM
Symptom Suspected Area See Page
Navigation system operates abnormally. TROUBLESHOOTING DI-2766

AUDIO SYSTEM
Symptom Suspected Area See Page
Audio system operates abnormally. TROUBLESHOOTING DI-2525
Rear seat audio system operates abnormally. TROUBLESHOOTING DI-2636
REAR SEAT ENTERTAINMANT SYSTEM
Symptom Suspected Area See Page
Rear seat entertainmant system operates abnormally. TROUBLESHOOTING DI-2673
TRAILER TOWING
Symptom Suspected Area See Page
1. TOWING Fuse BE-29
2. TOWING TAIL Fuse BE-29
3. TOWING BRK Fuse BE-29
4. GAUGE Fuse BE-29
Trailer towing does not operate.
5. TOW TAIL Relay BE-213
6. SUB BATT Relay BE-213
7. Towing Converter BE-213
8. Wire Harness -

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