C1622

PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: C1622: Open or Short Circuit in Back Camera Signal
C1622 - Open or Short Circuit in Back Camera Signal

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
* When "System initializing" is displayed on the navigation ECU sub-assembly after disconnecting the cable from the negative (-) auxiliary battery terminal, correct the steering angle neutral point Initialization.
* 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 Calibration.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)

(a) Disconnect the I66 connector from the navigation ECU sub-assembly.

(b) Disconnect the T6 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. INSPECT NAVIGATION ECU SUB-ASSEMBLY (V-, CGND, CA+)

(a) Reconnect the I66 connector to the navigation ECU sub-assembly.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE NAVIGATION ECU SUB-ASSEMBLY Removal
OK -- Continue to next step.

3. INSPECT NAVIGATION ECU SUB-ASSEMBLY (V+, GND1)

(a) Reconnect the T6 connector to the rear television camera assembly.

(b) Reconnect the I66 connector to the navigation ECU sub-assembly.

Text in Illustration

(c) Check the waveform of the rear television camera assembly using an oscilloscope.

HINT
A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation ECU sub-assembly with the connector 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.

NG -- REPLACE REAR TELEVISION CAMERA ASSEMBLY Removal

OK -- REPLACE NAVIGATION ECU SUB-ASSEMBLY Removal