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DIAGNOSIS TSB Revision ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-37 STEP 1. Using scan tool MB991958, diagnose the CAN bus YES : Go to Step 3. CAN Bus Diagnostics table ). On completion, go to Step 2. STEP 2. DTC recheck after repairing the CAN bus line YES : Go to Step 3. STEP 3. Scan tool service data .) • Item No.03: RL wheel speed sensor Q: Is the check result normal? YES : Go to Step 10. STEP 4. Connector check: Connector check: A-05 YES : Go to Step 5. STEP 5. Voltage measurement at A-05 ASC-ECU connector tool ASC check harness (MB991997) to the wiring (2) Turn the ignition switch to the ON position. power supply terminal (signal terminal) No. 36 and the body OK: 1 volt or less Q: Is the check result normal? YES : Go to Step 6. 8. AC400817CH ASC-ECU MB991997 Check harness A-05 ASC-ECU |