U00xx

116 generic network & communication codes in the U00xx range.Module-to-module communication across the vehicle data bus.

0 of these have been through editorial review and carry full diagnostic guidance.

Codes in this range

U0001High Speed CAN Communication BusSeverity level 4 of 5: Get it looked at now.
U0002High Speed CAN Communication Bus PerformanceSeverity level 3 of 5: Diagnose soon.
U0003High Speed CAN Communication Bus (+) OpenSeverity level 4 of 5: Get it looked at now.
U0004High Speed CAN Communication Bus (+) LowSeverity level 4 of 5: Get it looked at now.
U0005High Speed CAN Communication Bus (+) HighSeverity level 4 of 5: Get it looked at now.
U0006High Speed CAN Communication Bus (-) OpenSeverity level 4 of 5: Get it looked at now.
U0007High Speed CAN Communication Bus (-) LowSeverity level 4 of 5: Get it looked at now.
U0008High Speed CAN Communication Bus (-) HighSeverity level 4 of 5: Get it looked at now.
U0009High Speed CAN Communication Bus (-) Shorted to Bus (+)Severity level 4 of 5: Get it looked at now.
U0010Medium Speed CAN Communication BusSeverity level 2 of 5: Not urgent.
U0011Medium Speed CAN Communication Bus PerformanceSeverity level 2 of 5: Not urgent.
U0012Medium Speed CAN Communication Bus (-) OpenSeverity level 3 of 5: Diagnose soon.
U0013Medium Speed CAN Communication Bus (-) LowSeverity level 3 of 5: Diagnose soon.
U0014Medium Speed CAN Communication Bus (-) HighSeverity level 3 of 5: Diagnose soon.
U0015Medium Speed CAN Communication Bus (-) Shorted to Bus (+)Severity level 3 of 5: Diagnose soon.
U0016Medium Speed CAN Communication Bus OffSeverity level 4 of 5: Get it looked at now.
U0017Medium Speed CAN Communication Bus (+) OpenSeverity level 3 of 5: Diagnose soon.
U0018Medium Speed CAN Communication Bus (+) LowSeverity level 3 of 5: Diagnose soon.
U0019Medium Speed CAN Communication Bus (+) HighSeverity level 3 of 5: Diagnose soon.
U0020Low Speed CAN Communication Bus (+) OpenSeverity level 3 of 5: Diagnose soon.
U0021Low Speed CAN Communication Bus (+) LowSeverity level 3 of 5: Diagnose soon.
U0022Low Speed CAN Communication Bus (+) HighSeverity level 3 of 5: Diagnose soon.
U0023Low Speed CAN Communication Bus (+) Shorted to Bus (-)Severity level 3 of 5: Diagnose soon.
U0024Low Speed CAN Communication Bus OffSeverity level 3 of 5: Diagnose soon.
U0025Low Speed CAN Communication Bus (-) OpenSeverity level 3 of 5: Diagnose soon.
U0026Low Speed CAN Communication Bus (-) LowSeverity level 3 of 5: Diagnose soon.
U0027Low Speed CAN Communication Bus (-) HighSeverity level 3 of 5: Diagnose soon.
U0028Vehicle Communication Bus ASeverity level 3 of 5: Diagnose soon.
U0029Vehicle Communication Bus BSeverity level 3 of 5: Diagnose soon.
U0030Powertrain Sensor Data BusSeverity level 4 of 5: Get it looked at now.
U0031Vehicle Communication Bus C (+) OpenSeverity level 3 of 5: Diagnose soon.
U0032Vehicle Communication Bus A (+) HighSeverity level 4 of 5: Get it looked at now.
U0033Vehicle Communication Bus A (-) OpenSeverity level 4 of 5: Get it looked at now.
U0034Vehicle Communication Bus A (-) LowSeverity level 4 of 5: Get it looked at now.
U0035Vehicle Communication Bus A (-) HighSeverity level 4 of 5: Get it looked at now.
U0036Vehicle Communication Bus A (-) shorted to Bus A (+)Severity level 4 of 5: Get it looked at now.
U0037Vehicle Communication Bus BSeverity level 4 of 5: Get it looked at now.
U0038Vehicle Communication Bus B PerformanceSeverity level 3 of 5: Diagnose soon.
U0039Vehicle Communication Bus B (+) OpenSeverity level 4 of 5: Get it looked at now.
U0040Communication Bus OffSeverity level 4 of 5: Get it looked at now.
U0041Vehicle Communication Bus B (+) HighSeverity level 4 of 5: Get it looked at now.
U0042Vehicle Communication Bus D (+) OpenSeverity level 3 of 5: Diagnose soon.
U0043Vehicle Communication Bus B (-) LowSeverity level 4 of 5: Get it looked at now.
U0044Vehicle Communication Bus B (-) HighSeverity level 4 of 5: Get it looked at now.
U0045Vehicle Communication Bus B (-) shorted to Bus B (+)Severity level 4 of 5: Get it looked at now.
U0046Vehicle Communication Bus CSeverity level 4 of 5: Get it looked at now.
U0047Vehicle Communication Bus C PerformanceSeverity level 3 of 5: Diagnose soon.
U0048Vehicle Communication Bus C (+) OpenSeverity level 4 of 5: Get it looked at now.
U0049Vehicle Communication Bus C (+) LowSeverity level 4 of 5: Get it looked at now.
U0050Vehicle Communication Bus E (+) OpenSeverity level 3 of 5: Diagnose soon.
U0051Vehicle Communication Bus C (-) OpenSeverity level 4 of 5: Get it looked at now.
U0052Vehicle Communication Bus C (-) LowSeverity level 4 of 5: Get it looked at now.
U0053Vehicle Communication Bus C (-) HighSeverity level 4 of 5: Get it looked at now.
U0054Vehicle Communication Bus C (-) shorted to Bus C (+)Severity level 4 of 5: Get it looked at now.
U0055Vehicle Communication Bus DSeverity level 4 of 5: Get it looked at now.
U0056Vehicle Communication Bus D PerformanceSeverity level 3 of 5: Diagnose soon.
U0057Vehicle Communication Bus D (+) OpenSeverity level 4 of 5: Get it looked at now.
U0058Vehicle Communication Bus D (+) LowSeverity level 4 of 5: Get it looked at now.
U0059Vehicle Communication Bus D (+) HighSeverity level 4 of 5: Get it looked at now.
U0060Vehicle Communication Bus F (+) OpenSeverity level 3 of 5: Diagnose soon.
U0061Vehicle Communication Bus D (-) LowSeverity level 4 of 5: Get it looked at now.
U0062Vehicle Communication Bus D (-) HighSeverity level 4 of 5: Get it looked at now.
U0063Vehicle Communication Bus D (-) shorted to Bus D (+)Severity level 4 of 5: Get it looked at now.
U0064Vehicle Communication Bus ESeverity level 4 of 5: Get it looked at now.
U0065Vehicle Communication Bus E PerformanceSeverity level 3 of 5: Diagnose soon.
U0066Vehicle Communication Bus E (+) OpenSeverity level 4 of 5: Get it looked at now.
U0067Vehicle Communication Bus E (+) LowSeverity level 4 of 5: Get it looked at now.
U0068Vehicle Communication Bus E (+) HighSeverity level 4 of 5: Get it looked at now.
U0069Vehicle Communication Bus E (-) OpenSeverity level 4 of 5: Get it looked at now.
U0070Communication Bus "B" PerformanceSeverity level 3 of 5: Diagnose soon.
U0071Vehicle Communication Bus A (+) Bus OffSeverity level 4 of 5: Get it looked at now.
U0072Vehicle Communication Bus A (-) Bus OffSeverity level 4 of 5: Get it looked at now.
U0073Control Module Communication Bus "A" OffSeverity level 4 of 5: Get it looked at now.
U0074Control Module Communication Bus "B" OffSeverity level 4 of 5: Get it looked at now.
U0075Control Module Communication Bus "B" PerformanceSeverity level 3 of 5: Diagnose soon.
U0076Control Module Communication Bus "C" OffSeverity level 4 of 5: Get it looked at now.
U0077Vehicle Communication Bus B OffSeverity level 3 of 5: Diagnose soon.
U0078Vehicle Communication Bus B (+) OpenSeverity level 3 of 5: Diagnose soon.
U0079Vehicle Communication Bus B (+) LowSeverity level 3 of 5: Diagnose soon.
U007AControl Module Communication Bus H OffSeverity level 4 of 5: Get it looked at now.
U007BControl Module Communication Bus I OffSeverity level 4 of 5: Get it looked at now.
U007CControl Module Communication Bus J OffSeverity level 4 of 5: Get it looked at now.
U007DControl Module Communication Bus K OffSeverity level 4 of 5: Get it looked at now.
U007EControl Module Communication Bus L OffSeverity level 4 of 5: Get it looked at now.
U007FControl Module Communication Bus M OffSeverity level 4 of 5: Get it looked at now.
U0080Vehicle Communication Bus B (+) HighSeverity level 3 of 5: Diagnose soon.
U0081Vehicle Communication Bus F PerformanceSeverity level 3 of 5: Diagnose soon.
U0082Vehicle Communication Bus F + OpenSeverity level 4 of 5: Get it looked at now.
U0083Vehicle Communication Bus F + LowSeverity level 4 of 5: Get it looked at now.
U0084Vehicle Communication Bus F + HighSeverity level 4 of 5: Get it looked at now.
U0085Vehicle Communication Bus F - OpenSeverity level 4 of 5: Get it looked at now.
U0086Vehicle Communication Bus F - LowSeverity level 4 of 5: Get it looked at now.
U0087Vehicle Communication Bus F - HighSeverity level 4 of 5: Get it looked at now.
U0088Vehicle Communication Bus F - Shorted to Bus F +Severity level 4 of 5: Get it looked at now.
U0089Vehicle Communication Bus GSeverity level 4 of 5: Get it looked at now.
U008AVehicle Communication Bus G PerformanceSeverity level 3 of 5: Diagnose soon.
U008BVehicle Communication Bus G (+) OpenSeverity level 4 of 5: Get it looked at now.
U008CVehicle Communication Bus G (+) LowSeverity level 4 of 5: Get it looked at now.
U008DVehicle Communication Bus G (+) HighSeverity level 4 of 5: Get it looked at now.
U008EVehicle Communication Bus G (-) OpenSeverity level 4 of 5: Get it looked at now.
U008FVehicle Communication Bus G (-) LowSeverity level 4 of 5: Get it looked at now.
U0090Vehicle Communication Bus G (-) HighSeverity level 4 of 5: Get it looked at now.
U0091CAN Communication Bus "C" OffSeverity level 4 of 5: Get it looked at now.
U0092CAN Communication Bus "C" PerformanceSeverity level 3 of 5: Diagnose soon.
U0093Vehicle Communication Bus H PerformanceSeverity level 3 of 5: Diagnose soon.
U0094Vehicle Communication Bus H (+) OpenSeverity level 4 of 5: Get it looked at now.
U0095Vehicle Communication Bus H (+) LowSeverity level 4 of 5: Get it looked at now.
U0096Vehicle Communication Bus H (+) HighSeverity level 4 of 5: Get it looked at now.
U0097Vehicle Communication Bus H (-) OpenSeverity level 4 of 5: Get it looked at now.
U0098Vehicle Communication Bus H (-) LowSeverity level 4 of 5: Get it looked at now.
U0099Vehicle Communication Bus H (-) HighSeverity level 4 of 5: Get it looked at now.
U009AVehicle Communication Bus H (-) shorted to Bus H (+)Severity level 4 of 5: Get it looked at now.
U009BVehicle Communication Bus ISeverity level 4 of 5: Get it looked at now.
U009CVehicle Communication Bus I PerformanceSeverity level 3 of 5: Diagnose soon.
U009DVehicle Communication Bus JSeverity level 4 of 5: Get it looked at now.
U009EVehicle Communication Bus J PerformanceSeverity level 3 of 5: Diagnose soon.