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
- Critical
- Can I keep driving?
- No, stop and have it checked
- Estimated cost
- $10 to $2,000
- 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
P1299 Cylinder Head Overtemperature Protection Active (Ford) Critical
On Ford, Lincoln and Mercury, the P1299 code means the cylinder head overtemperature protection is active. The engine runs on fewer cylinders with very little power. Stop driving and let it cool before you do anything else.