Code No.C1754: ACC/FCM Radar Calibration not Completed

caution

If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
Whenever the ECU is replaced, ensure that the communication circuit is normal.

OPERATION

The ACC/FCM-ECU memorises the neutral position of its radar.

DIAGNOSIS CODE SET CONDITION

This diagnosis code is set when the abnormality below is detected:

The ACC/DCM-ECU detects that the neutral position of its radar is not learned yet.

PROBABLE CAUSES

Neutral position of ACC/FCM-ECU radar not learned
Malfunction of ACC/FCM-ECU

DIAGNOSIS PROCEDURE

STEP 1. ACC/FCM-ECU radar calibration

Perform calibration of ACC/FCM-ECU radar calibration (Refer to

).

Q. Has the calibration succeeded?

	This diagnosis is complete.

	Go to Step 2

STEP 2. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.C1754 set?

	Replace the ACC/FCM-ECU (Refer to ).

	This diagnosis is complete.