Vehicle Communication Bus ‘A’ Bus Off
Table of contents
U0028 LINCOLN Possible Causes
- Faulty Restraint Control Module (RCM)
- Restraint Control Module (RCM) harness is open or shorted
- Restraint Control Module (RCM) circuit poor electrical connection
- Faulty Antilock Brake System (ABS) Module
How do I fix code U0028 LINCOLN?
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.
Cost of diagnosing the U0028 LINCOLN code
The cost of diagnosing the U0028 LINCOLN 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)
U0028 LINCOLN Description
The Restraint Control Module (RCM) supplies the stability/traction control system with accelerometer data over a dedicated Controller Area Network (CAN). If the RCM detects a fault with communications with the dedicated CAN circuits, it sets Diagnostic Trouble Code (DTC) U0028. The RCM does not request the Instrument Panel Control (IPC) to illuminate the airbag warning indicator if DTC U0028 is set.