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:

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. PROCEDURE 1. INSTALL FRONT SEAT SIDE AIRBAG ASSEMBLY 2. INSTALL SEPARATE TYPE FRONT SEATBACK COVER (a) Using hog ring plier ...

Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. CAUTION The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To av ...