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
- $100 to $4,000
- 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
P0734 Gear 4 Incorrect Ratio High
The P0734 code means that with 4th gear engaged, the ratio between the transmission input and output speeds is not correct, so something is slipping. Causes run from low fluid to worn clutches. The fluid level and condition tell you whether the repair is cheap or a rebuild.