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
- Low
- Can I keep driving?
- Yes, no immediate risk
- 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
P0666 PCM/ECM/TCM Internal Temperature Sensor Circuit Low
The P0666 code means there is a fault in the sensor that measures the internal temperature of the computer. The sensor is built into the circuit board, so diagnosis comes down to ruling out power and ground problems and checking the software.