Code No. C1751:
ACC/FCM ECU Failure
Code No. C2296: CAN Buffer Error
Code No. C2297: CAN Transmit
Error
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 (Refer to GROUP 54C -
Troubleshooting
).
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the ACC/FCM-ECU is replaced, calibrate the radar (refer to
).
|
OPERATION
ACC/FCM-ECU monitors the malfunction in the ECU.
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality below is detected:
- A malfunction is detected inside the ACC/FCM-ECU.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of the ACC/FCM-ECU
|
STEP 1. M.U.T.-III CAN bus diagnostics.
|
|
Use M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Go to Step 2.
|
|
|
|
Repair the CAN bus lines (Refer to GROUP 54C -
Troubleshooting ).
On completion, go to Step 2.
|
|
|
|
STEP 2. Check whether the diagnosis code is set again.
|
|
Check again if the diagnosis code is set in the ACC/FCM-ECU.
|
|
(1)Erase the diagnosis code.
|
|
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
|
|
(4)Press the ACC ON/OFF switch to turn the ACC system to ON.
|
|
(5)On completion, check that the diagnosis code is set again.
|
|
Q.
Is diagnosis code No. C1751, C2296 or C2297 set?
|
|
Replace the ACC/FCM-ECU (Refer to ).
|
|
|
|
This diagnosis is complete.
|
|
|