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 |
|---|---|---|
|
Window deicer switch is turned on but does not operate (Indicator on) |
Air conditioning amplifier assembly |
|
|
Windshield glass (Windshield deicer wire) |
- |
|
|
Harness or connector |
- |
|
|
Window deicer switch is turned on but does not operate (Indicator off) |
Outer mirror heater switch assembly |
|
|
Air conditioning amplifier assembly |
|
|
|
Windshield glass (Windshield deicer wire) |
- |
|
|
Harness or connector |
- |
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System Description
SYSTEM DESCRIPTION
1. WINDSHIELD DEICER SYSTEM DESCRIPTION
The windshield deicer system thin heater wires are attached to the inside of
the front window and deice the window surface quickly. The i ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) Disconnect the F42 air conditioning amplifier connector.
(b) Measure the voltage and resistance according to the value(s) in the ...
Other materials about Toyota 4Runner:
Only Wireless Control Function is Inoperative
DESCRIPTION
The door control receiver receives signals from the transmitter and sends these
signals to the main body ECU. The main body ECU then controls all the doors by sending
lock/unlock signals to each door.
WIRING DIAGRAM
CAUTION / NOTICE / HINT ...
Power Supply Drive Circuit (C1257)
DESCRIPTION
The motor relay (semiconductor relay) is built into the master cylinder solenoid
and drives the pump motor based on a signal from the skid control ECU.
DTC Code
DTC Detection Condition
Trouble Area
...
0.0034