Toyota Avalon Service & Repair Manual: Diagnosis System



(a) The DCM (Telematics Transceiver) control the vehicle safety connect system functions. Safety connect system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the safety connect system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.


(a) Check the DLC3.

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(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery.


(a) When a malfunction is detected in the safety connect system, the manual (SOS) switch red indicator on the manual (SOS) switch illuminates to inform the driver of the malfunction.

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    Dcm Power Source Circuit

    Diagnostic Trouble Code Chart

    See More:

    Toyota Avalon Service & Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "C" Circuit Short to Ground or Open (P079514)
    DESCRIPTION Refer to DTC P079512. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P079514 Pressure Control Solenoid "C" Circuit Short to Ground or Open While the vehicle is being driven so that gear changes occur, a short to ground or open is detected in the so ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

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