Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Back Camera Power Supply Failure (C1621)

DESCRIPTION

This DTC is stored if the television camera assembly judges as a result of its self check that the signals or signal lines between the television camera assembly and parking assist ECU are not normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

• Inspect the fuses for circuits related to this system before performing the following procedure.
• When "!" is displayed on the radio and display receiver assembly after the cable is disconnected from the negative (-) auxiliary battery terminal, correct the steering angle neutral point.

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• Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the panoramic view monitor system may be needed.

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PROCEDURE

(a) Disconnect the K36 parking assist ECU connector.

(b) Disconnect the P7 television camera assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

OK

REPLACE TELEVISION CAMERA ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR