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ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS TSB Revision ANTI-LOCK BRAKING SYSTEM (ABS) 35B-43 . CIRCUIT OPERATION . ABS DTC SET CONDITION • Stoplight switch is not operating properly and remains in ON state for more than 15 minutes. • Stoplight switch system harness is damaged and no signal is input to M-ASTC-ECU. . TROUBLESHOOTING HINTS • Malfunction of the stoplight switch • Damaged wiring harness and connector • Malfunction of the M-ASTC-ECU . DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991911: MUT-III Main Harness B • MB991223: Harness Set STEP 1. Check the stoplight operation. YES : Go to Step 5. STEP 2. Check the stoplight switch installation condition. YES : Go to Step 3. AC204384 D-116 AD CONNECTOR: D-116 AC204548 E-111 AM CONNECTOR: E-111 AC203901AE CONNECTOR: E-119 E-119 |