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ANTI-SKID BRAKING SYSTEM (ABS) DIAGNOSIS TSB Revision ANTI-LOCK BRAKING SYSTEM (ABS) 35B-39 CIRCUIT OPERATION • The ABS-ECU controls the illumination of the • The ABS-ECU illuminates the ABS warning light • When the ABS-ECU connector is disconnected, TECHNICAL DESCRIPTION (COMMENT) TROUBLESHOOTING HINTS (The most likely • Malfunction of the ABS-ECU connector lock • Disconnection of the ABS-ECU connector • Damaged wiring harness or connector • Malfunction of the hydraulic unit (integrated with DIAGNOSIS Required Special Tool: • MB991223: Harness Set STEP 1. Check the ABS warning light circuit at the Q: Does the ABS warning light illuminate? YES : Go to Step 4. AC001985 CONNECTOR: A-02 AD AC004428 AB CONNECTORS: C-41, C-42 C-41 C-42 COMBINATION AC004410AB CONNECTOR: C-94 AC004411AB CONNECTORS: C-101, C-104 C-104 C-101 AC004410AB CONNECTOR: C-94 |