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?
- No, stop and have it checked
- Estimated cost
- $100 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
P0601 Internal Control Module Memory Check Sum Error High
The P0601 code means the computer ran a check of its own internal memory and the result did not match what it expected. It sounds final, but before you condemn the module, rule out low voltage and interrupted programming, which are common and much cheaper causes.