Input/Turbine Shaft Speed Sensor C Circuit
General electrical fault on input/turbine speed sensor C — third input speed sensor in heavy-duty or hybrid-coupled transmissions.
Affected components
- Input shaft speed sensor c
- Sensor wiring
Common causes
- High likelihood: Open or shorted wiring
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.