DTC U0100: Engine ECU CAN timeout; DTC U0101 T/M ECU CAN timeout; DTC U0114 AWD ECU CAN timeout; DTC U0126 Steering angle sensor CAN timeout; DTC U0141 ETACS-ECU CAN timeout; DTC U0317 EPB CAN timeout; DTC U15A0 ACC/FCM ECU CAN timeout; DTC U15A5 FCM/LDW/AHB CAN timeout: Diagnosis

STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III). Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
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 check result normal?

YES: Go to Step 2.

NO: Repair the CAN bus lines (Refer to CAN BUS DIAGNOSTICS TABLE ). On completion, go to Step 4.
STEP 2. Check whether the DTC is set again.
Q: Is DTC U0100, U0101, U0114, U0126, U0141, U0317, U15A0 or U15A5 set?

YES: Go to Step 3.

NO: The procedure is complete.
STEP 3. Scan tool (M.U.T.-III) other system DTC
Use scan tool (M.U.T.-III) to check that other DTC is set in the ECU corresponding to the relevant diagnosis.

Q: Is other DTC set?

YES: Troubleshoot for the relevant DTC.

NO: Go to Step 4.
STEP 4. Scan tool (M.U.T.-III) DTC
Use scan tool (M.U.T.-III) to check if the same DTC (time-out) is set in the other ECU.

Q: Is any DTC set?

YES (DTC U0100 is set): Replace the ECM (Refer to ECM <2.4L ENGINE>, ECM <3.0L ENGINE>).

YES (DTC U0101 is set): Replace the TCM (Refer to TCM <CVT> or TCM <A/T>).

YES (DTC U0114 is set): Replace AWD-ECU (Refer to AWD-ECU ) <Vehicles without S-AWC> or AWC-ECU (Refer to AWC-ECU <Vehicles with S-AWC> ) <CVT (Vehicles with S-AWC)> or (Refer to AWC-ECU <Vehicles with S-AWC> ) <A/T (Vehicles with S-AWC)>.

YES (DTC U0126 is set): Replace steering wheel sensor (Refer to WHEEL SPEED SENSOR CURRENT CHECK ).

YES (DTC U0141 is set): Replace the ETACS-ECU (Refer to ETACS-ECU ).

YES (DTC U0317 is set): Replace the electric parking brake ECU (Refer to ELECTRIC PARKING BRAKE ECU ).

YES (DTC U15A0 is set): Replace the ACC-ECU (Refer to ACC-ECU ).

YES (DTC U15A5 is set): Replace the FCM/LDW/AHB-ECU (Refer to FCM/LDW/AHB-ECU ).

NO (No DTC is set.): Go to Step 5.
STEP 5. Check whether the DTC is set again.
Erase the DTC.

Q: Is DTC U0100, U0101, U0114, U0126, U0141, U0317, U15A0 or U15A5 set?

YES: Replace the hydraulic unit (integrated with ASC-ECU) (Refer to HYDRAULIC UNIT ).

NO: The procedure is complete.