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STEP 7. Resistance measurement at A-02 ASC-ECU ZC601293 0007 ASC-ECU MB991997 Check harness A-02 ASC-ECU (1) Disconnect the ASC-ECU connector, connect special tool NOTE: Do not connect the special tool MB991997 to ASC- ECU. (2) Resistance between the wheel speed sensor power supply OK: No continuity Q:Is the check result normal? YES: Go to Step 10. NO (Not normal at the terminal No. 43 or 42): Go to Step 8. STEP 8. Connector check: A-02 ASC-ECU connector, D-133 Q:Is the check result normal? YES: Go to Step 9. NO: Repair the defective connector. STEP 9. Wiring harness check between A-02 ASC-ECU ⦆ Check for short circuit in wheel speed sensor <RR> circuit Q:Is the check result normal? YES: Replace the wheel speed sensor <RR>. NO: Repair the wiring harness. ACTIVE SKID CONTROL SYSTEM (ASC) 35C-31 DIAGNOSIS |