Toyota 4Runner: Problem Symptoms Table

Toyota 4Runner Service Manual / Vehicle Interior / Seat / Seat Heater System / 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.

Seat Heater System

Symptom	Suspected Area	See page
Seat heater LH does not operate	Seat heater switch LH
	Separate type front seat cushion cover LH
	Separate type front seatback cover LH
	Seat heater control sub-assembly LH
	Harness or connector	-
Seat heater RH does not operate	Seat heater switch RH
	Separate type front seat cushion cover RH
	Separate type front seatback cover RH
	Seat heater control sub-assembly RH
	Harness or connector	-

System Description

SYSTEM DESCRIPTION 1. GENERAL DESCRIPTION (a) By operating the seat heater switch, which is located in the console box, the seat temperature can be controlled within the range of 30 to 40°C (86 t ...

On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY LH (a) Disconnect the b2 seat heater control sub-assembly LH connector. ...

Other materials about Toyota 4Runner:

Diagnosis System
DIAGNOSIS SYSTEM 1. DIAGNOSIS SYSTEM (a) Indicator light (1) During vehicle stabilizer control operation, the KDSS indicator light comes on when there is a malfunction in the KDSS. NOTICE: When the malfunction has been corrected, the KDSS indica ...

Front Passenger Side Power Window Auto Up / Down Function does not Operate with Front Passenger Side Power Window Switch
DESCRIPTION If the auto up/down function does not operate, the cause may be one or more of the following: The ECU in the power window regulator motor determines that the power window regulator motor has not been initialized. The power window ...