U3878 Audi Fault Code
If you want to know how to repair U3878 OBD 2 code, it is necessary to find out what type of fault it is. The reason for this is that each type of fault needs different repair steps.
Meaning of Audi U3878 OBD/2 ErrorU3878 Code Check :
U3878 OBD 2 code troubleshooting is a process of resolving the problem with the car engine by inspecting the error codes and checking for any specific issues.
| U | Network (U) Code |
| 3 | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent |
| 8 | Vehicle Speed Output Circuit |
| 7 | Cruise Vehicle Speed/Set Speed Difference Too High |
| 8 | Electrostatic Oil Separator Circuit Failed Open |
Common U3878 Error :
Because many things can trigger the error, finding the root cause can be tricky. This often makes repairing code U3878 a long and arduous task. Other times, more than one problem can trigger this code.
It's advisable to leave this one to the professionals. In most cases, fixing code U3878 does not cost a lot to repair. Once the code U3878 is repaired, your car will run better, have more power, and get better fuel mileage.