Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

NOTICE:

When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.

System Name

See Procedure

Lane Departure Alert System (w/ Steering Control)

Intelligent Clearance Sonar System

Parking Assist Monitor System

Panoramic View Monitor System

Pre-collision System

Lighting System (for HV Model with Cornering Light)

WHEN DISCONNECTING AUXILIARY BATTERY CABLE

(a) After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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WHEN AUTOMATIC COLLISION NOTIFICATION HAS ACTIVATED

(a) Perform "ACN CALL END" with Techstream to terminate ACN (Automatic Collision Notification) with the call center.

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(b) The BUB (Back-Up Battery) must be replaced.

WHEN DISCONNECTING CONNECTORS FROM DCM (TELEMATICS TRANSCEIVER)

(a) The power switch must be off.

WHEN REPLACING THE DCM (TELEMATICS TRANSCEIVER)

(a) After installing a new Telematics Data Communication Module (DCM (Telematics Transceiver)), perform "DCM ACTIVATION" with the Techstream. This allows the Telematics service provider to register the new DCM (Telematics Transceiver) and to delete the old DCM (Telematics Transceiver) information from their database.

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NOTICE:

Do not replace the DCM (Telematics Transceiver) with one from another vehicle.

WHEN UNABLE TO CONTACT WITH CALL CENTER BUT NO DTC

(a) This may occur when the cellular signal strength was very weak. Check "DCM OPERATION HISTORY" with the Techstream.

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WHEN DIAGNOSING DCM (TELEMATICS TRANSCEIVER)

(a) While attempting to diagnose the DCM (Telematics Transceiver), do not use a DCM (Telematics Transceiver) from another vehicle. Each DCM (Telematics Transceiver) is registered to a specific VIN and should not be tested in another vehicle.

    Parts Location

    Problem Symptoms Table

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Safety Connect System(for Gasoline Model): Manual Button Malfunction (B15C5)
    DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch. DTC No. Detection Item DTC Detection Condition Trouble Area B15C5 Manual Button Malfunction Open or short circuit in manual (SOS) switch is detected. DCM (Telematics Transce ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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