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DTC U0126 ⦆ Wiring harness or connector failure of CAN bus line ⦆ Steering wheel sensor malfunction ⦆ ASC-ECU malfunction DTC U0141 ⦆ Wiring harness or connector failure of CAN bus line ⦆ Malfunction of ETACS-ECU ⦆ ASC-ECU malfunction DIAGNOSIS Required Special Tools: ⦆ MB991958: Scan Tool (M.U.T.-III Sub Assembly) ⦆ MB991824: Vehicle Communication Interface (V.C.I.) ⦆ MB991827: M.U.T.-III USB Cable ⦆ MB991910: M.U.T.-III Main Harness A STEP 1. M.U.T.-III CAN bus diagnostics Q:Is the check result normal? YES: Go to Step 2. NO: Repair the CAN bus lines. (Refer to GROUP 54D - CAN Bus Diagnostics table P.54D-17.) On completion, go to STEP 2. M.U.T.-III other system diagnostic trouble code Q:Is other DTC set? YES: Troubleshoot for the relevant diagnostic trouble code. NO: Go to Step 3. STEP 3. M.U.T.-III diagnostic trouble code Q:Is any DTC set? YES (DTC U0100 is set): Replace the engine ECU, and then go to Step 4. YES (DTC U0101 is set): Replace the A/T-ECU, and then go to Step 4. YES (DTC U0114 is set): Replace AWD-ECU, and then go to Step 4. YES (DTC U0123 is set): Replace the steering wheel sensor, and then go to Step 4. YES (DTC U0141 is set): Replace the ETACS-ECU, and then go to Step 4. NO (No DTC is set.): The procedure is complete. STEP 4. Check whether the diagnostic trouble code is reset. Q:Is DTC U0100, U0101, U0114, U0126, or U0141 set? ACTIVE SKID CONTROL SYSTEM (ASC) 35C-151 DIAGNOSIS |