C1621

PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM (w/ Wide View Front Monitor System): C1621,C1622: Back Camera Power Supply Failure

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA)

(a) Disconnect the F105 connector from the parking assist ECU.

(b) Disconnect the L32 connector from the rear television camera assembly.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK PARKING ASSIST ECU (CV-, CGND)

(a) Reconnect the F105 connector to the parking assist ECU.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE PARKING ASSIST ECU Removal
OK -- Continue to next step.

3. CHECK REAR TELEVISION CAMERA ASSEMBLY (CB+)

(a) Disconnect the L32 connector from the rear television camera assembly.

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

Standard Voltage:

NG -- REPLACE PARKING ASSIST ECU Removal
OK -- Continue to next step.

4. CHECK PARKING ASSIST ECU (CV+, GND1)

(a) Reconnect the L32 connector to the rear television camera assembly.

(b) Reconnect the F105 connector to the parking assist ECU.

HINT
A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connectors connected.

OK:

Waveform is as shown in the illustration.

HINT
The video waveform changes according to the image sent by the rear television camera assembly.

Text in Illustration

NG -- REPLACE REAR TELEVISION CAMERA ASSEMBLY Removal

OK -- REPLACE PARKING ASSIST ECU Removal