Shift Fork A Position Circuit
The TCM cannot read a valid position signal from shift fork A position sensor. Selector engagement state is unknown.
Affected components
- Shift fork a
- Shift fork position sensor a
- Wiring harness
Common causes
- High likelihood: Position sensor failed
- Medium likelihood: Wiring or connector fault
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.