U0493Invalid Data Received From Personal Computer
- Generic OBD-II code · Network
- How the car detects it
- U0493 covers a personal computer sharing the vehicle network, a slot in the J2012 list that hardly any production car fills. The nearest real case is a fleet or police vehicle with a laptop or mobile data terminal wired into the car: Ford's 2027 Police Interceptor Utility offers an Integrated Computer Screen that mirrors a laptop stowed in the cargo bay, and a Vehicle Integration System that lets upfitters read the J1939 CAN signals. The code is logged when such a computer sends frames whose content a receiving module refuses; total silence would be U0192. No manufacturer documents U0493 publicly, so an aftermarket installation, its interface box or its software is the first suspect. Driving is unaffected and no MIL lights.
- What you may notice
- Functions of the connected computer that rely on vehicle data fail
- Often no noticeable fault in the vehicle itself
- Likely causes
- LikelyAftermarket computer installation or interface box sending non-conforming frames
- PossibleSoftware or configuration of the connected computer
- RareWiring or connector fault at the vehicle interface
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.