Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- High
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $0 to $1,500
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
U0001 High Speed CAN Communication Bus High
The U0001 code means there is a general fault on the high speed CAN bus. It usually causes communication codes in several modules and, depending on the network affected, limp mode or warning lights. Drive with caution, because important systems can fail.