Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Side Camera Current Malfunction (C1684)

DESCRIPTION

This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the passenger side television camera assembly to the parking assist ECU.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

• 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) Clear the DTCs.

(b) Check for DTCs.

OK:

DTC C1684 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

(a) Disconnect the K36 parking assist ECU connector.

(b) Disconnect the I13 outer rear view mirror assembly RH 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) Remove the parking assist ECU with the connector still connected.

*a Component with harness connected (Parking Assist ECU)

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

Standard Resistance:

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

Standard Voltage:

NG

REPLACE PARKING ASSIST ECU

OK

(a) Replace the side television camera assembly RH with a new or normally functioning one.

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NEXT

(a) Clear the DTCs.

(b) Check for DTCs.

OK:

DTCs C1684 is not output.

OK

END (SIDE TELEVISION CAMERA ASSEMBLY RH IS DEFECTIVE)

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH