Toyota 4Runner manuals

Toyota 4Runner: Problem Symptoms Table



  • 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.
Occupant Classification System


Suspected Area

See page

The front passenger seat condition differs from that indicated by the passenger airbag ON/OFF indicator (DTC is not stored)

Trouble in Passenger Airbag ON/OFF Indicator

System Description
SYSTEM DESCRIPTION 1. DESCRIPTION OF OCCUPANT CLASSIFICATION SYSTEM (a) GENERAL DESCRIPTION (1) In the occupant classification system, the occupant classification ECU calculates the weight of the ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK OCCUPANT CLASSIFICATION ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition ...

Other materials about Toyota 4Runner:

INSPECTION PROCEDURE 1. INSPECT FRONT PROPELLER SHAFT ASSEMBLY (a) Using a dial indicator, check the propeller shaft runout. Maximum runout: 0.3 mm (0.0118 in.) If the shaft runout is more than the maximum, replace the propeller shaft. ...

General Maintenance GENERAL MAINTENANCE PROCEDURE 1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY (a) Where necessary, tighten all the parts of the chassis. Front axle and suspension Drivetrain Rear axle and suspension Brake system ...

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