Transmission Park Position Sensor/Switch B Circuit Performance/Low
Sensor B low-end value drifts away from the calibrated Park threshold.
Affected components
- Park position sensor b
Common causes
- High likelihood: Aged sensor with low-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.