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.
Climate Control Seat System

Symptom

Suspected Area

See page

Climate control seat system does not operate

Refreshing seat switch


Harness or connector

-

Seat heater LH does not operate

Refreshing seat switch


Seat heater control sub-assembly LH


Front seat cushion heater assembly LH


Front seatback heater assembly LH


Harness or connector

-

Seat heater RH does not operate

Refreshing seat switch


Seat heater control sub-assembly RH


Front seat cushion heater assembly RH


Front seatback heater assembly RH


Harness or connector

-

One or both blowers do not operate (LH)

Refreshing seat switch


Seat cushion climate control blower LH

-

Seatback climate control blower LH

-

Air conditioning amplifier assembly


Harness or connector

-

One or both blowers do not operate (RH)

Refreshing seat switch


Seat cushion climate control blower RH

-

Seatback climate control blower RH

-

Air conditioning amplifier assembly


Harness or connector

-

Operation Check
OPERATION CHECK 1. CHECK SEAT CUSHION CLIMATE CONTROL BLOWER (a) Turn the engine switch on (IG). (b) Set the refreshing seat switch blower side to level 3 (maximum). (c) Check that the fan motor t ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY LH (a) Disconnect the b24 seat heater control sub-assembly LH connector. ...

Other materials about Toyota 4Runner:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Audio and Visual System DTC Code Detection Item See page B1532 LVDS Signal Malfunction (from Extension Module) B1551 HD Radio ...

All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate
DESCRIPTION When the entry operation and wireless operation of the door lock functions do not operate, a malfunction or wave interference may be occurring in either of the following: 1) the signal communication line between the door control receiver and ...

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