Clutch Position Sensor A Circuit
General electrical fault on the clutch position sensor A circuit — used in dual-clutch and automated-manual transmissions to monitor clutch fork or release-bearing position. Without a valid signal the TCM cannot close the loop on clutch engagement.
Affected components
- Clutch position sensor a
- Sensor wiring
Common causes
- High likelihood: Open or shorted wiring
- Medium likelihood: Failed Hall element
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.