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.
Engine Immobiliser System


Suspected Area

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Engine does not start

LIN communication system

ID code box power source circuit

Certification ECU power source circuit

Steering lock system

Smart key system (for Start Function)

SFI system

Security indicator light malfunction

Security indicator light circuit

Certification ECU

REGISTRATION PROCEDURE 1. DESCRIPTION OF CODE REGISTRATION HINT: The engine immobiliser function ID code is the same as the recognition code for the smart key system and wireless trans ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK ENGINE SWITCH (a) Disconnect the F71 switch connector. (b) Measure the resistance according to the value(s) in the table below. Terminal No. (Symbol) ...

Other materials about Toyota 4Runner:

Installation with LATCH system (rear/second row seats only)
Installing on the rear seats (vehicles without third row seats) Fold the seatback while pulling the seatback angle adjustment lever. Return the seatback and secure it at the first lock position. Type A Latch the hooks of the lower straps onto the LATC ...

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 ...

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