Engine Speed Input Circuit Range or Performance
Same as P0725 with the signal in plausible range yet not matching the engine model.
Affected components
- Engine speed signal to tcm
Common causes
- High likelihood: Signal drift between ECM output and TCM input
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.