Toyota 4Runner: 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 indicator light illuminates while the system is operating. The system automatically turns off after approximately 15 minutes.
2. FUNCTION OF MAIN COMPONENT
|
Component |
Outline |
|---|---|
|
Engine room relay block, junction block (DEICER relay) |
Receives front deicer activation request signals from the air conditioning amplifier assembly and supplies power to the front window deicer. |
|
Outer mirror heater switch assembly (windshield deicer switch) |
Sends signals to the air conditioning amplifier assembly to operate the deicer. |
|
Windshield glass (windshield deicer wire) |
Receives power from the DEICER relay and heats the windshield glass (windshield deicer wire). |
Operation Check
OPERATION CHECK
1. CHECK WINDSHIELD DEICER SYSTEM OPERATION
(a) When the ignition switch is turned to ON and the outer mirror heater switch
(windshield deicer switch) is pressed, check that the wi ...
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 lis ...
Other materials about Toyota 4Runner:
Air Conditioning Control Panel Circuit
DESCRIPTION
This circuit consists of the heater control assembly and air conditioning amplifier
assembly. When the heater control assembly is operated, signals are transmitted
to the air conditioning amplifier assembly through the LIN communication system ...
Lost Communication with ECM / PCM "A" (U0100)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
U0100
There is no communication from the ECM.
Power source or inside ECM
ECM main wire or connector
ECM
...
0.0257