OBD2 trouble code reference
8,157 codes across 1 prefix groups on this page.
U0xxx
- U0012Medium Speed CAN Communication Bus (+) Opennetwork
- U0013Medium Speed CAN Communication Bus (+) Lownetwork
- U0014Medium Speed CAN Communication Bus (+) Highnetwork
- U0015Medium Speed CAN Communication Bus (-) Opennetwork
- U0016Medium Speed CAN Communication Bus (-) Lownetwork
- U0017Medium Speed CAN Communication Bus (-) Highnetwork
- U0018Medium Speed CAN Communication Bus (-) shorted to Bus (+)network
- U0019Low Speed CAN Communication Busnetwork
- U001AHigh Speed CAN Communication Busnetwork
- U001BCommunication issue within the vehicle's network, specifically indicating a problem with the data bus related to the vehicle's control modulesnetwork
- U001CCommunication issue within the vehicle's network, specifically indicating a problem with the "High Speed CAN Communication Bus"network
- U001DVehicle's network, specifically indicating a problem with the "High Speed CAN Communication Bus"network
- U001ECommunication issue within the vehicle's network, specifically indicating a problem with the "High Speed CAN Communication Bus"network
- U001FISO/SAE Reservednetwork
- U0020Low Speed CAN Communication Bus Performancenetwork
- U0021Low Speed CAN Communication Bus (+) Opennetwork
- U0022Low Speed CAN Communication Bus (+) Lownetwork
- U0023Low Speed CAN Communication Bus (+) Highnetwork
- U0024Low Speed CAN Communication Bus (-) Opennetwork
- U0025Low Speed CAN Communication Bus (-) Lownetwork
- U0026Low Speed CAN Communication Bus (-) Highnetwork
- U0027Low Speed CAN Communication Bus (-) shorted to Bus (+)network
- U0028Vehicle Communication Bus Anetwork
- U0029Vehicle Communication Bus A Performancenetwork
- U002AHigh Speed CAN Communication Bus A - Signal Invalidnetwork
- U002BHigh Speed CAN Communication Bus Offnetwork
- U002CHigh Speed CAN Communication Bus Offnetwork
- U002DHigh Speed CAN Communication Bus Offnetwork
- U002EHigh Speed CAN Communication Bus Offnetwork
- U002FISO/SAE Reservednetwork
- U0030Vehicle Communication Bus A (+) Opennetwork
- U0031Vehicle Communication Bus A (+) Lownetwork
- U0032Vehicle Communication Bus A (+) Highnetwork
- U0033Vehicle Communication Bus A (-) Opennetwork
- U0034Vehicle Communication Bus A (-) Lownetwork
- U0035Vehicle Communication Bus A (-) Highnetwork
- U0036Vehicle Communication Bus A (-) shorted to Bus A (+)network
- U0037Vehicle Communication Bus Bnetwork
- U0038Vehicle Communication Bus B Performancenetwork
- U0039Vehicle Communication Bus B (+) Opennetwork
- U003AControl Module Communication Bus 'A' Offnetwork
- U003BControl Module Communication Bus 'B' Offnetwork
- U003CControl Module Communication Bus 'A' Offnetwork
- U003DCommunication issue within the vehicle's network, specifically indicating a problem with the "High Speed CAN Communication Bus"network
- U003EHigh Speed CAN Communication Bus A Offnetwork
- U003FISO/SAE Reservednetwork
- U0040Vehicle Communication Bus B (+) Lownetwork
- U0041Vehicle Communication Bus B (+) Highnetwork
- U0042Vehicle Communication Bus B (-) Opennetwork
- U0043Vehicle Communication Bus B (-) Lownetwork