Toyota 4Runner manuals

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.
Windshield Deicer System

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

-

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:

All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate
DESCRIPTION When the wireless operation can be used to lock and unlock the doors, the communication line between the door control receiver and certification ECU is normal. When the entry operation does not operate, one of the following may be the cause: 1 ...

System Description
SYSTEM DESCRIPTION 1. LIN COMMUNICATION SYSTEM DESCRIPTION The LIN communication system is used for communication between the components in the tables below. If communication cannot be performed through LIN communication because of a break in the communi ...

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