C1681

PARK ASSIST / MONITORING: WIDE VIEW FRONT MONITOR SYSTEM: C1681: Front Camera Feedback Malfunction
C1681 - Front Camera Feedback Malfunction

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 front television camera assembly to the parking assist ECU.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

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

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

(b) Disconnect the B3 connector from the front 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 (BCV-, BGND)

(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 FRONT TELEVISION CAMERA ASSEMBLY (BCB+, BGND)

(a) Disconnect the B3 connector from the front 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 (BCV+, GND1)

(a) Reconnect the B3 connector to the front television camera assembly.

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

HINT
A waterproof connector is used for the front 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 front television camera assembly.

Text in Illustration

NG -- REPLACE FRONT TELEVISION CAMERA ASSEMBLY Removal

OK -- REPLACE PARKING ASSIST ECU Removal