Toyota 4Runner: Operation Check
OPERATION CHECK
1. CHECK WINDOW DEFOGGER SYSTEM OPERATION
(a) When the ignition switch is turned to ON and the heater control (window defogger switch) is pressed, check that the window defogger operates.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Inspect the window defogger system after confirming that the back door
power window system of the power window control system is operating normally.
...
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:
Relay(for Windshield Deicer)
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. REMOVE DEICER RELAY (DEICER)
(a) Remove the deicer relay from the engine room relay block.
Text in Illustration
*1
Deicer Relay
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Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE
1. INSTALL FOG LIGHT BULB
(a) Turn the bulb in the direction indicated by ...
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