U0080Vehicle Communication Bus F
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- U0080 is the general fault of Vehicle Communication Bus F, and makers give that letter very different networks. In the 2019 Audi A6 and A7 3.0 TFSI the transmission module stores U008000 (Bus F) when its harness chafes on the crossmember or the FlexRay feed rubs on a module bracket, together with parking lock codes P17F4-P17F6 and U010100 in the engine module. Range Rover L460/L461 log U0080-88 (bus off) and U0080-81 (invalid data) if connector CM32B3/4 is not latched. Stellantis security gateways call it Ethernet Bus 1; when the telematics box answers more than 5 s late after start-up, a stored U0080-00 is simply cleared. Volvo and Mack trucks use U008088 for CAN faults on datalink 7 at engine or aftertreatment module. Effects range from none to a transmission warning.
- What you may notice
- Transmission or other warning messages in the cluster
- Stored code without any noticeable fault
- Telematics or app services report errors
- Likely causes
- LikelyBus F wiring chafed on a crossmember or bracket
- PossibleInline connector of Bus F not fully latched
- PossibleModule on Bus F starts communicating too late after wake-up (stored code only)
- RareSupply or ground fault of a Bus F module
- Repair
- Hard · Usually a job for a workshop.Typical cost: €0 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.