Toyota 4Runner: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Clock does not operate at all |
Wire harness or connector |
- |
|
Accessory meter assembly |
|
|
|
Clock display illumination malfunction |
Wire harness or connector |
- |
|
Accessory meter assembly |
|
|
|
Combination meter assembly |
|
|
|
Clock loses or gains time |
Accessory meter assembly |
|
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
Use these procedures to troubleshoot the clock system.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Terminals Of Ecu
TERMINALS OF ECU
1. ACCESSORY METER ASSEMBLY
(a) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Color
...
Other materials about Toyota 4Runner:
Horn Circuit
DESCRIPTION
When the theft deterrent system is in the alarm sounding state, the main body
ECU outputs a signal repeatedly at 0.4 second intervals, causing the horn(s) to
sound.
WIRING DIAGRAM
PROCEDURE
1.
CHECK HORN OPERATION
...
Rear Occupant Classification Sensor RH Collision Detection (B1788)
DESCRIPTION
DTC B1788 is stored when the occupant classification ECU receives a collision
detection signal, which is sent by the occupant classification sensor rear RH when
an accident occurs.
DTC B1788 is also stored when the separate type front seat cu ...
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