Code No.C1703 LDW CAMERA not Initialization

  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.


The LDW-ECU will store diagnosis code No. C1703 when it has never initialised the LDW camera.
note This diagnosis code may be also stored if the LDW camera is not installed correctly. Prior to the diagnosis, check whether the camera is installed correctly.


If the LDW-ECU has never initialised the LDW camera (the image input adjustment of the camera is incomplete), it will determine that the system is defective.



STEP 1. Check the camera mounted surface on the windshield.

Visually check the LDW camera mounted surface on the windshield for scratch, cracks, contamination or drain drops.

Q. Is the check result normal?

Initialise the LDW camera. (Refer to GROUP 54A - How to initialise the LDW camera ). Then go to Step 2.

Windshield glass replacement (Refer to GROUP 42A - Windshield Glass Removal and Installation .)

STEP 2. Check whether the diagnosis code is reset.

Check if the diagnosis code No. C1703 is set to LDW-ECU.
(1)Turn the ignition switch from the LOCK (OFF) position to the ON position.
(2)Check if the diagnosis code is set.

Q. Is the diagnosis code set?

Replace the LDW-ECU.

This diagnosis is complete.