The MUTT can be used to access ABS Blink Codes on trailers equipped with ABS systems. Trailers equipped with ABS feature an ABS Control Unit (ECU) which detects any electrical fault in the trailer ABS. Most trailers with ABS will also have a dedicated ABS lamp on the driver side. Each fault has a code. When a fault occurs, the ECU stores the.. ABS codes may be cleared in certain trailers. It may include hitting the brakes many times or turning switches in a precise sequence. Check your trailer's handbook for detailed instructions. Give it time after resetting. The ABS light on the semi trailer may take a bit to recognize that everything is okay.
Make sure trailer is stationary and wheels are properly chocked. On the MUTT, turn the control knob to select the Auxiliary Circuit; Push the control knob to cycle the Brake Light Circuit for each desired Cycle in one second intervals.; Count number of blinks on Trailer ABS Lamp, see chart below for specific fault info.. The Bendix fault code list does have more than enough fault codes to keep you busy once they start blinking. If you are not paying attention, you can miss a. Bendix ABS Fault Codes List. Blink code Wheel Speed Sensors except for the first one. 1 st digit: 2nd digit: Description:. Trailer PMV REL Solenoid Shorted to Voltage: 66: 1056: 3: 7.