Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne be trou pst
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BE-2
BODY ELECTRICAL - TROUBLESHOOTING
TROUBLESHOOTING
BE11G-04
PROBLEM SYMPTOMS TABLE
HEADLIGHT AND TAILLIGHT SYSTEM (w/o Daytime Running Light):
Symptom Suspect Area See page
5. HEAD RH or LH Fuse (Engine Room R/B) BE-13
Only one side headlight does not light 6. Headlight Bulb -
7. Wire Harness -
1. Headlight Dimmer Switch BE-15
"Lo-Beam" or "Hi-Beam" does not light
2. Wire Harness -
1. Headlight Dimmer Switch BE-15
"Flash" does not light
2. Wire Harness -
1. Headlight Control Relay (Engine Room R/B) BE-15
2. Light Control Switch BE-15
Headlight does not light (Taillight is normal) 3. Headlight Dimmer Switch BE-13
4. HEAD RH and LH Fuse (Engine Room R/B) BE-15
5. Wire Harness -
1. Light Control Switch BE-15
Headlight and taillight do not light
2. Wire Harness -
1. Taillight Bulb -
Only one side taillight does not light
2. Wire Harness -
1. TAIL Fuse (Engine Room R/B) BE-15
2. Taillight Control Relay (Engine Room R/B) BE-15
Taillight does not light (Headlight is normal) 3. Light Control Switch) BE-13
4. Wire Harness -
5. Taillight Bulb -
HEADLIGHT AND TAILLIGHT SYSTEM (w/ Daytime Running Light):
Symptom Suspect Area See page
1. DRL Fuse (Engine Room R/B) BE-15
"Lo-Beam" does not light (All)
2. No. 4 Daytime Running Light Relay BE-13
(Daytime running light system is normal)
3. Wire Harness -
1. Headlight Control Relay (Engine Room R/B) BE-13
2. Light Control Switch BE-13
"Lo-Beam" does not light (All) 3. Daytime Running Light Relay BE-13
(Daytime running light system is not normal) 4. HEAD (LO LH) and (LO RH) Fuse (Engine Room R/B) BE-13
5. Headlight Bulb -
6. Wire Harness -
1. HEAD (LO LH) or (LO RH) Fuse (Engine Room R/B) BE-13
"Lo-Beam" does not light (One side) 2. Headlight Bulb -
3. Wire Harness -
1. Headlight Dimmer Relay (Engine Room R/B) BE-13
2. Headlight Dimmer Switch BE-13
3. Daytime Running Light Relay BE-13
"Hi-Beam" does not light (All)
4. HEAD LH and RH Fuse (Engine Room R/B) BE-13
5. Headlight Bulb -
6. Wire Harness -
1. HEAD LH or RH Fuse (Engine Room R/B) BE-13
"Hi-Beam" does not light (One side) 2. Headlight Bulb -
3. Wire Harness -
1. Headlight Dimmer Relay (Engine Room R/B) BE-13
2. Headlight Dimmer Switch BE-13
"Flash" does not light
3. Daytime Running Light Relay BE-13
4. Wire Harness -
2002 4RUNNER (RM887U)
Author : Date : 1470
BE-3
BODY ELECTRICAL - TROUBLESHOOTING
1. Headlight Control Relay (Engine Room R/B) BE-13
2. Headlight Dimmer Relay (Engine Room R/B) BE-13
3. DRL Fuse (Engine Room R/B) BE-13
Headlight does not light (Taillight is normal) 4. Light Control Switch BE-13
5. Daytime Running Light Relay BE-13
6. Daytime Running Light No.4 Relay BE-13
7. Wire Harness -
1. Light Control Switch BE-13
Headlight and taillight do not light
2. Wire Harness -
1. Taillight Bulb -
Only one side taillight does not light
2. Wire Harness -
1. TAIL Fuse (Engine Room R/B) BE-13
2. Taillight Control Relay (Engine Room R/B) BE-13
Taillight does not light (Headlight is normal) 3. Light Control Switch BE-13
4. Wire Harness -
5. Taillight Bulb -
1. DOME Fuse (Engine Room R/B) BE-13
2. GAUGE Fuse (Driver Side J/B) BE-13
3. IGN Fuse (Driver Side J/B) BE-13
Daytime running light system does not operate 4. Daytime Running Light Relay BE-13
5. Daytime Running Light Resistor BE-45
6. Parking Brake Switch BE-13
7. Wire Harness -
TURN SIGNAL AND HAZARD WARNING SYSTEM:
Symptom Suspect Area See page
1. Hazard Warning Switch BE-24
"Hazard" and "Turn" do not light 2. Turn Signal Flasher (Driver Side J/B) BE-24
3. Wire Harness -
1. Bulb -
The flashing frequency is abnormal 2. Turn Signal Flasher (Driver Side J/B) BE-24
3. Wire Harness -
1. HORN Fuse (Engine Room R/B) BE-23
Hazard warning light does not light (Turn signal is normal)
2. Wire Harness -
1. Ignition Switch BE-23
Turn signal does not light 2. TURN Fuse (Driver Side J/B) BE-24
(Combination meter, wiper and washer do not operate) 3. Turn Signal Switch BE-12
4. Wire Harness -
1. Turn Fuse (Driver Side J/B) BE-24
Turn signal does not light
2. Turn Signal Switch BE-23
(Combination meter, wiper and washer are normal)
3. Wire Harness -
1. Turn Signal Switch BE-24
Turn signal does not light in one direction
2. Wire Harness -
1. Bulb -
Only one bulb does not light
2. Wire Harness -
INTERIOR LIGHT SYSTEM:
Symptom Suspect Area See page
1. DOME Fuse (Engine Room R/B) BE-25
Interior light does not light
2. Wire Harness -
1. Bulb -
2. Door Courtesy Switch BE-26
Front interior light does not light
3. Front Interior Light Switch BE-26
4. Wire Harness -
2002 4RUNNER (RM887U)
Author : Date : 1471
BE-4
BODY ELECTRICAL - TROUBLESHOOTING
1. Bulb -
2. Back Door Courtesy Switch BE-26
Rear interior light does not light
3. Rear Interior Light Switch BE-26
4. Wire Harness -
1. Front Interior Light Switch BE-26
Front interior light remains on 2. Door Courtesy Switch BE-26
3. Wire Harness -
1. Rear Interior Light Switch BE-26
Rear interior light remains on 2. Back Door Courtesy Switch BE-26
3. Wire Harness -
1. Bulb -
Personal light does not light 2. Personal Light Switch BE-26
3. Wire Harness -
1. Bulb -
Vanity light does not light 2. Vanity Light BE-26
3. Wire Harness -
BACK-UP LIGHT SYSTEM:
Symptom Suspect Area See page
1. GAUGE Fuse (Driver Side J/B) -
2. Park/Neutral Position Switch (A/T) DI-203
Back-up light does not light 3. Back-up Light Switch (M/T) BE-30
4. Bulb -
5. Wire Harness -
1. Park/Neutral Position Switch (A/T) DI-203
Back-up light remains on 2. Back-up Light Switch (M/T) BE-30
3. Wire Harness -
1. Bulb -
Only one light does not light
2. Wire Harness -
STOP LIGHT SYSTEM:
Symptom Suspect Area See page
1. STOP Fuse (Engine Room R/B) BE-32
2. Stop Light Switch BE-31
Stop light does not light
3. Bulb -
4. Wire Harness -
1. Stop Light Switch BE-32
Stop light remains on
2. Wire Harness -
1. Wire Harness -
Only one light does not light
2. Bulb -
WIPER AND WASHER SYSTEM:
Symptom Suspect Area See page
1. WIPER Fuse (Driver Side J/B) BE-34
2. Wiper and Washer Switch BE-34
Front wipers do not operate
3. Front Wiper Motor BE-33
4. Wire Harness -
1. Wiper and Washer Switch BE-34
Front wipers do not operate in MIST, INT, LO or HI position 2. Front Wiper Motor BE-34
3. Wire Harness -
1. Wiper and Washer Switch BE-34
Front washer motor does not operate 2. Front Wiper Motor BE-34
3. Wire Harness -
Front wipers do not operate when washer switch on 1. Wiper and Washer Switch BE-34
2002 4RUNNER (RM887U)
Author : Date : 1472
BE-5
BODY ELECTRICAL - TROUBLESHOOTING
1. WIPER Fuse (Driver Side J/B) BE-34
2. Rear Wiper Motor BE-34
3. Rear Wiper and Washer Switch BE-73
Rear wiper does not operate
4. Window Limit Switch BE-73
5. Back Door Control Relay BE-33
6. Wire Harness -
1. Rear Wiper and Washer Switch BE-34
Rear wiper does not operate in INT or ON position 2. Back Door Control Relay BE-73
3. Wire Harness -
1. Rear Wiper Motor BE-34
Rear wiper does not return to off position 2. Back Door Control Relay BE-73
3. Wire Harness -
1. Rear Washer Motor BE-34
2. Rear Wiper and Washer Switch BE-73
Rear washer motor does not operate 3. Window Limit Switch BE-34
4. Back Door Control Relay BE-73
5. Wire Harness -
COMBINATION METER:
Symptom Suspect Area See page
1. GAUGE Fuse (Driver Side J/B) BE-39
Tachometer, speedometer, engine coolant temperature gauge and
2. Meter Circuit BE-40
fuel gauge do not operate
3. Wire Harness -
1. Skid Control ECU DI-244
Speedometer does not operate 2. Meter Circuit BE-40
3. Wire Harness -
1. ECM -
Tachometer does not operate 2. Meter Circuit BE-40
3. Wire Harness -
1. Fuel Receiver Gauge BE-45
2. Fuel Sender Gauge BE-45
Fuel gauge does not operate or operates abnormally
3. Meter Circuit BE-40
4. Wire Harness -
1. Engine Coolant Temperature Receiver Gauge BE-45
Engine coolant temperature gauge does not operate or operates 2. Engine Coolant Temperature Sender Gauge BE-45
abnormally 3. Meter Circuit BE-40
4. Wire Harness -
1. TAIL Fuse (Engine Room R/B) BE-39
2. Taillight Control Relay BE-15
All illumination lights do not light
3. Light Control Rheostat BE-45
4. Wire Harness -
1. Bulb -
Only one illumination light does not light
2. Meter Circuit BE-40
1. GAUGE Fuse (Driver Side J/B) BE-39
Warning lights do not light up
2. Meter Circuit BE-40
(Except discharge, SRS and door open)
3. Wire Harness -
1. Bulb -
2. Brake Fluid Level Switch BE-45
3. Parking Brake Switch BE-45
Brake warning light does not light
4. Bulb Check Relay BE-45
5. Meter Circuit BE-40
6. Wire Harness -
2002 4RUNNER (RM887U)
Author : Date : 1473
BE-6
BODY ELECTRICAL - TROUBLESHOOTING
1. Bulb -
2. ATF Temperature Sensor DI-182
ATF temperature warning light does not light 3. ECM -
4. Meter Circuit BE-40
5. Wire Harness -
1. Bulb -
2. Door Courtesy Switch BE-45
3. Back Door Courtesy Switch BE-26
Door open warning light does not light
4. DOME Fuse (Engine Room R/B) BE-40
5. Meter Circuit BE-26
6. Wire Harness -
1. Bulb -
2. Airbag Sensor Assembly -
SRS warning light does not light 3. ECU-B Fuse (Driver Side J/B) BE-45
4. Meter Circuit BE-40
5. Wire Harness -
1. Bulb -
2. IGN Fuse (Driver Side J/B) BE-45
Discharge warning light does not light 3. Generator -
4. Meter Circuit BE-40
5. Wire Harness -
1. Bulb -
2. Buckle Switch BE-45
Seat belt warning light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. Skid Control ECU DI-244
ABS warning light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. Low Oil Pressure Warning Switch BE-45
Low oil pressure warning light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
Fuel level warning light does not light 2. Meter Circuit BE-40
3. Wire Harness -
1. Bulb -
2. Park/Neutral Position Switch DI-203
Unengaged "Park" warning light does not light 3. Transfer Neutral Position Switch TR-1 1
4. Meter Circuit BE-40
5. Wire Harness -
1. Bulb -
2. Turn Signal and Hazard Warning System BE-24
Turn indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. Headlight and Taillight System BE-15
High beam indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. A/T Pattern Select Switch DI-214
A/T PWR indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
2002 4RUNNER (RM887U)
Author : Date : 1474
BE-7
BODY ELECTRICAL - TROUBLESHOOTING
1. Bulb -
2. A.D.D. Switch SA-49
4WD indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. Window Washer Level Warning Switch BE-45
Washer level indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. O/D Main Switch DI-218
O/D OFF indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
Malfunction indicator light does not light 2. ECM DI-3
3. Wire Harness -
1. Bulb -
2. ECM DI-471
Cruise control indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
1. Bulb -
2. DIFF. Lock Indicator Switch SA-1 18
Rear DIFF. lock indicator light does not light
3. Meter Circuit BE-40
4. Wire Harness -
DEFOGGER SYSTEM:
Symptom Suspect Area See page
1. GAUGE Fuse (Driver Side J/B) BE-57
2. DEFOG Fuse (Engine Room R/B) BE-57
Defogger system does not operate 3. Defogger Switch BE-58
4. Defogger Relay BE-58
5. Wire Harness -
POWER WINDOW CONTROL SYSTEM:
Symptom Suspect Area See page
1. POWER Fuse (Driver Side J/B) BE-64
Power window does not operate (All)
2. Combination meter BE-45
(Power door lock does not operate)
3. Wire Harness -
1. Ignition Switch BE-12
Power window does not operate (All) 2. Power Main Relay (Driver Side J/B) BE-65
(Power door lock is normal) 3. Power Window Master Switch BE-65
4. Wire Harness -
"One Touch Power Window System" does not operate 1. Power Window Master Switch BE-65
1. Power Window Master Switch BE-65
2. Power Window Switch BE-65
Only one window glass does not operate
3. Power Window Motor BE-65
4. Wire Harness -
"Window Lock System" does not operate 1. Power Window Master Switch BE-65
"Window Lock Illumination" does not light 1. Power Window Master Switch BE-65
1. Combination meter BE-45
2. Ignition Switch BE-12
"Key-Of f Power Window" does not operate
3. Door Courtesy Switch BE-26
4. Wire Harness -
2002 4RUNNER (RM887U)
Author : Date : 1475
BE-8
BODY ELECTRICAL - TROUBLESHOOTING
BACK DOOR POWER WINDOW SYSTEM:
Symptom Suspect Area See page
1. POWER Fuse (Driver Side J/B) BE-72
2. Window Limit Switch BE-34
3. Rear Wiper Motor BE-73
4. Back Door Power Window Switch BE-72
5. Back Door Control Switch BE-72
6. w/o Power Window:
Back door power window does not operate
Back Door Window Lock Switch BE-72
7. w/ Power Window:
Power Window Master Switch BE-72
8. Back Door Power Window Motor BE-72
9. Back Door Control Relay BE-72
10.Wire Harness -
POWER DOOR LOCK CONTROL SYSTEM:
Symptom Suspect Area See page
1. POWER Fuse (Driver Side J/B) BE-75
Power door lock control system does not operate (All) 2. Power source circuit (Terminal PWR) BE-75
3. Body ECU -
1. w/ Power Window: BE-76
Door Lock Control Switch
Power door lock control system can not be operated by door lock 2. w/o Power Window: BE-76
control switch or back door lock switch Back Door Lock Switch
3. Integration Relay (Driver Side J/B) BE-76
4. Wire Harness -
1. Door Key Lock and Unlock Switch BE-76
2. Back Door Control Switch BE-76
Power door lock control system can not be operated by door key
3. Wire Harness -
4. Body ECU BE-76
1. Door Lock Motor BE-76
Only one door does not operate 2. Door Lock Link Disconnected -
3. Wire Harness -
1. Key Unlock Warning Switch BE-12
2. Door Courtesy Switch BE-26
Fault in key confine prevention operation
3. Wire Harness -
4. Body ECU BE-75
SLIDING ROOF SYSTEM:
Symptom Suspect Area See page
1. POWER Fuse (Driver Side J/B) BE-76
2. Power MAIN Relay (Driver Side J/B) BE-65
Sliding roof system does not operate 3. Sliding Roof Control Switch with Relay BE-104
4. Sliding Roof Motor BE-104
5. Wire Harness -
1. Limit Switch BE-104
Sliding roof system operates abnormally
2. Sliding Roof Control Switch with Relay BE-104
1. Sliding Roof Control switch with Relay BE-104
2. Limit Switch BE-104
Sliding roof system stops operation half way
3. Sliding Roof Motor BE-104
(Stones or foreign material trapped in motor assembly)
2002 4RUNNER (RM887U)
Author : Date : 1476
BE-9
BODY ELECTRICAL - TROUBLESHOOTING
POWER SEAT CONTROL SYSTEM:
Symptom Suspect Area See page
1. POWER Fuse (Driver Side J/B) BE-106
Power seat does not operate 2. Power Seat Switch BE-107
3. Wire Harness -
1. Slide Motor BE-107
"Sliding operation" does not operate 2. Power Seat Switch BE-107
3. Wire Harness -
1. Reclining Motor BE-107
"Reclining operation" does not operate 2. Power Seat Switch BE-107
3. Wire Harness -
1. Rear Vertical Motor BE-107
"Rear vertical operation" does not operate 2. Power Seat Switch BE-107
3. Wire Harness -
1. Lumber Support Motor BE-107
"Lumber support operation" does not operate 2. Lumber Support Switch BE-107
3. Wire Harness -
POWER MIRROR SYSTEM:
Symptom Suspect Area See page
1. ACC Fuse (Driver Side J/B) BE-1 13
2. Mirror Control Switch BE-1 14
Power mirror system does not operate
3. Mirror Motor BE-1 14
4. Wire Harness -
1. Mirror Control Switch BE-1 14
Power mirror operates abnormally 2. Mirror Mortor BE-1 14
3. Wire Harness -
SEAT HEATER SYSTEM
Symptom Suspect Area See page
1. SEAT HTR Fuse BE-10
2. Seat Heater Switch (D, P) BE-1 17
Driver's seat heater does not operate
3. Seat Heater BE-1 17
4. Wire Harness -
1. SEAT HTR Fuse BE-10
2. Seat Heater Switch (D, P) BE-1 17
Passenger's seat heater does not operate
3. Seat Heater BE-1 17
4. Wire Harness -
Seat heater temperature is too hot 1. Seat Heater BE-1 17
GARAGE DOOR OPENER SYSTEM
Symptom Suspect Area See page
1. Garage Door Opener BE-162
Equipment of which code has been registered does not operate 2. Wire Harness -
3. * -
1. Garage Door Opener BE-162
LED does not light (Even though one switch is pressed)
2. Wire Harness -
LED does not light (Only one switch is pressed) 1. Garage Door Opener BE-162
* As the GARAGE DOOR OPENER on the vehicle side seems to be normal, check the OPENER, of which
code has been registered on the equipment side.
2002 4RUNNER (RM887U)
Author : Date : 1477
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