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 $800
- 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
P0639 Throttle Actuator Control Range/Performance (Bank 2) High
The P0639 code means the second electronic throttle, on engines that have two, is not following the position the computer asks for. Like P0638, it is usually caused by carbon buildup or wear.