DTC C1707: Implausible coding data: Diagnosis

STEP 1. Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line .
CAUTION: To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE).
1. Connect scan tool (M.U.T.-IIISE). Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-IIISE) ."
2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?

YES: Go to Step 2.

NO: Repair the CAN bus lines (Refer to TROUBLESHOOTING ).
STEP 2. ETACS-ECU coding data check .
Using the scan tool (M.U.T.-IIISE), check if there is the FCM type2, LDW Parameter status abnormality to the coding data stored in the ETACS-ECU.

Q: Is the check result normal?

YES: Go to Step 3.

NO: Go to Step 4.
STEP 3. Using scan tool (M.U.T.-IIISE), read the other system DTC .
Check again if the DTC is set in the FCM/LDW/AHB-ECU.
1. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if DTC is set.
Q: Is the DTC set?

YES: Replace the FCM/LDW/AHB-ECU (Refer to FCM/LDW/AHB-ECU ).

NO: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
STEP 4. Using scan tool (M.U.T.-IIISE), read the other system DTC .
Check again if the DTC is set in the FCM/LDW/AHB-ECU.
1. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if DTC is set.
Q: Is the DTC set?

YES: Repair the coding data or replace ETACS-ECU (Refer to ETACS-ECU ).

NO: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).