U025A - Lost Communication With Special Purpose Vehicle Control Module 'B'
U025A Possible Causes
- Faulty Special Purpose Vehicle Control Module 'B'
- Special Purpose Vehicle Control Module 'B' harness is open or shorted
- Special Purpose Vehicle Control Module 'B' circuit poor electrical connection
How do I fix code U025A?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 U025A code
Labor: 1.0The cost of diagnosing the U025A 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.
- Engine Light ON (or Service Engine Soon Warning Light)
U025A DescriptionA Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Special Purpose Vehicle Control Module 'B' has not been received.
More InformationNeed more information on how to fix the U025A code?
Get Access to Factory Service Manuals
Need more help?Get the U025a code diagnosed by a professional: Find a repair shop in your area
CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the U025a code? Have you replaced any parts?
Any information is appreciated. Thanks