Inspection Procedure 11: Traction Control Function or Skid Control Function Inoperative: 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

1. STEP 1. M.U.T.-III diagnostic trouble code 

   Q: Is any DTC set? 

   YES:  Troubleshoot for the relevant diagnostic trouble code.

   NO:  Go to Step 2.

2. STEP 2. Hydraulic unit (HU) check 

   Refer to HYDRAULIC UNIT CHECK  .

   Q: Is the check result normal? 

   YES:  Go to Step 3.

   NO:  Repair the brake pipe or replace ASC-ECU.

3. STEP 3. Operation check 

   Q: Does traction control function or skid control function operate normally? 

   YES:  The procedure is complete.

   NO:  Check the brake system related components except the ASC.