Transmission Park Position Sensor/Switch A Circuit Performance High
Sensor A is electrically intact but the high-end value drifts — for example a value above the calibrated non-Park range while the lever actually is in Park.
Affected components
- Park position sensor a
Common causes
- High likelihood: Aged sensor with high-end drift
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
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.