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.

Airbag System


Suspected Area

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SRS warning light goes off after primary check, but then comes on

SRS Warning Light Circuit

When ignition switch is turned to ON, SRS warning light sometimes comes on after approximately 6 seconds

SRS Warning Light Circuit

SRS warning light always comes on even when no DTCs are output

SRS Warning Light Circuit

When ignition switch is turned to ON, SRS warning light does not come on

SRS Warning Light Circuit

Although SRS warning light operates normally, DTC or normal system code is not output

Diagnosis Circuit

Although terminals TC and CG of DLC3 are not connected, DTC or normal system code is output

Diagnosis Circuit

System Description
SYSTEM DESCRIPTION 1. GENERAL (a) In conjunction with the impact absorbing structure for a front collision, the SRS (Supplemental Restraint System) steering pad, instrument panel passenger airba ...

Terminals Of Ecu
TERMINALS OF ECU 1. AIRBAG SENSOR ASSEMBLY Terminal No. Symbol Destination F33-1 P2+ Instrument panel passenger airbag assem ...

Other materials about Toyota 4Runner:

PRECAUTION 1. IGNITION SWITCH EXPRESSION HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ign ...

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC HINT: When DTC B1650/32 is stored as a result of troubleshooting for the airbag system, perform troubleshooting for the occupant classification system. (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch t ...

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