Transmission Fluid Temperature Sensor A Circuit
The transmission fluid temperature sensor A signal is missing or out of range. Used by shift logic to adapt timings to fluid viscosity.
Affected components
- Trans fluid temp sensor
- Sensor wiring
Common causes
- High likelihood: Sensor internally faulty
- Medium likelihood: Wiring 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
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.