Neutral Position Sensor A Not Learned
The neutral position sensor A reports a not learned fault. Verification of true neutral position is impaired.
Affected components
- Neutral position sensor a
- Wiring harness
- Tcm
Common causes
- High likelihood: Adaptation lost after battery disconnect
- Medium likelihood: Sensor replaced without learn procedure
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
- Reduced-power or limp mode may occur
Related codes
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.