Right Side Assist Step Position Sensor Circuit
Table of contents
B051D CADILLAC Possible Causes
- Faulty Right Side Assist Step Position Sensor
- Right Side Assist Step Position Sensor harness is open or shorted
- Right Side Assist Step Position Sensor circuit poor electrical connection
- Faulty Assist Step Control Module (ASC)
How do I fix code B051D CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- B051D 62 Right Side Assist Step Position Sensor Circuit Actuator Stuck Open
- B051D 63 Right Side Assist Step Position Sensor Circuit Actuator Stuck Closed
- B051D 29 Right Side Assist Step Position Sensor Circuit Too Few Pulses
- B051D 2A Right Side Assist Step Position Sensor Circuit Too Many Pulses
- B051D 22 Right Side Assist Step Position Sensor Circuit Low Time < Minimum
Cost of diagnosing the B051D CADILLAC code
The cost of diagnosing the B051D CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B051D CADILLAC Description
The Assist Step Control Module (ASC) controls the running board actuators to extend or retract the running boards. Each actuator consists of an electric motor and a potentiometer. The module supplies a low reference and 10-volt reference source voltage to the potentiometer. The ASC control module monitors the voltage drop across the potentiometer on the position signal circuit. When the actuator shaft rotates, the voltage on the position signal circuit changes. The ASC control module supplies the actuator motor with a 12-volt control circuit and a ground control circuit. The ASC module controls the direction of the actuator by changing the polarity of the control circuits.