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 radio and display assembly are not normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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 parking assist monitor system may be needed.

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PROCEDURE

(a) Disconnect the G2 radio and display receiver assembly connector.

(b) Disconnect the P19 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) Reconnect the G2 radio and display receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition G2-27 (CGND) - Body ground Always Below 1 Ω

*a Component with harness connected (Radio and Display Receiver Assembly)

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

Standard Voltage:

OK

REPLACE TELEVISION CAMERA ASSEMBLY

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY