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POSSIBLE CAUSES ABM - 12 VOLT SUPPLY CIRCUIT FAULT ABM - SIGNAL CIRCUIT FAULT WHEEL SPEED SENSOR 12 VOLT SUPPLY SHORT TO GROUND WHEEL SPEED SENSOR SIGNAL CIRCUIT INOPERATIVE TEST ACTION APPLICABILITY 1 Turn the ignition on. t, read DTCs. With the DRBIII t, read and record Freeze Frame information. With the DRBIII t, erase DTCs. Turn the ignition off. t, read DTCs. NOTE: The ABM must sense all four wheels at 25km/h (15 mph) before it will t display WHEEL SPEED SENSOR CIRCUIT? All Yes → Go To 2 No → Go To 13 2 Turn the ignition off. All Yes → Repair as necessary. Perform ABS VERIFICATION TEST - VER 1. No → Go To 3 3 Turn the ignition off. All Yes → Go To 6 No → Go To 4 4 Turn the ignition off. All Yes → Repair the affected Wheel Speed Sensor 12 Volt Supply circuit for a short to ground. No → Go To 5 18 BRAKES (25E) LEFT FRONT WHEEL SPEED SENSOR CIRCUIT — Continued |