Toyota 4Runner: Introduction

Toyota 4Runner Service Manual / General / Introduction

How To Troubleshoot Ecu Controlled Systems
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How To Troubleshoot Ecu Controlled Systems

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Air Inlet Damper Control Servo Motor Circuit (B1442)
DESCRIPTION The recirculation damper servo sub-assembly sends pulse signals to inform the No. 1 air conditioning amplifier assembly of the damper position. The No. 1 air conditioning amplifier assembly activates the motor (normal or reverse) based on th ...

IG Signal Circuit
DESCRIPTION This circuit detects the ignition switch ON or off condition, and sends it to the main body ECU. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspect ...