What does VW fault code U3004 mean?
When a VW displays an error code U3004this means that the car has the following fault:
- Type of breakdown: Data transmission
- Fault details: Accessory power relay
- Reason: –
It must be taken into account that the OBD2 diagnostic code U3004 It is a generic code, so this data transmission error DTC code can be displayed on any car regardless of whether it is a VW brand vehicle or any other brand.
This website is merely informative, so any failure or error that your vehicle may present must be analyzed and reviewed by a specialized mechanical workshop for a correct evaluation of the possible fault and a correct repair. Remember, if your VW has a fault code U3004, it is recommended that you visit a workshop as soon as possible to solve it, since driving with mechanical problems in the car can cause traffic accidents.
OBD2 diagnostic tools for VW
If you want to know what the fault code U3004 on a VW brand car means, you can use our website to find the specific error and its meaning, or if you prefer, you can purchase a car fault diagnostic meter.
These gauges are a digitized device that perform a diagnostic test to check if a vehicle has a fault and, if there is, determine what type of fault it is. That is, these devices perform tests to see if a car has faults, determine the error code number and specify the meaning of the fault.