Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: System Diagram

SYSTEM DIAGRAM

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     How To Proceed With Troubleshooting

    PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS

     Operation Check

    OPERATION CHECK CHECK NAVIGATION SYSTEM NORMAL CONDITION (w/ Navigation Function) (a) If the cause of a symptom is any of the following, the corresponding symptom is normal; it is not due to a mal

     Utility

    UTILITY SPEAKER CIRCUIT ENERGIZATION INSPECTION (for 9 Speakers) HINT: This function checks for an open in each speaker circuit. (a) Speaker circuit energization inspection (1) In accordance with

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     Terminals Of Ecu

    TERMINALS OF ECU CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (a) Disconnect the I55 and I253 radio and display receiver assembly connectors. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Terminal Description

     AVC-LAN Circuit

    DESCRIPTION The audio and visual system communicates with each device via AVC-LAN communication. If a malfunction such as a short in a communication line, short to +B or short to ground occurs in the AVC-LAN circuit, communication will stop and the audio and visual system will not operate cor

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