Toyota 4Runner: How To Troubleshoot Ecu Controlled Systems

Introduction

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General Information

GENERAL INFORMATION A large number of ECU controlled systems are used in the 4RUNNER. In general, ECU controlled systems are considered to be very intricate, requiring a high level of ...

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Brake
General Maintenance GENERAL MAINTENANCE PROCEDURE 1. INSPECT BRAKE LINE PIPES AND HOSES HINT: Work in a well-lighted area. Turn the front wheels fully to the right or left before beginning the inspection. (a) Using a mirror, check the enti ...

Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2) (P0976,P0977)
DESCRIPTION Shifting from 1st to 5th is performed in combination with the ON and OFF operation of the shift solenoid valves SL1, SL2, S1, S2 and SR, which is controlled by the ECM. If an open or short circuit occurs in one of the shift solenoid valves, th ...