What it means
The drive motor C temperature sensor signal is outside the expected range or does not behave as expected. This code does not establish that the reading is unusable for control.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
The Drive Motor C temperature sensor supplies a signal used to monitor that motor's temperature. This code sets when the signal is outside its expected range or changes in a way the control system considers implausible, even if a reading is still available.
Common causes
Most likely first.
- Sensor characteristic drifted
- Sensor mounting displaced
- Sensor element aged beyond calibration window
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
How to diagnose it
- Review freeze-frame and live temperature data for Drive Motor C, especially whether the reading changes smoothly as the motor warms.
- Compare the cold motor reading with ambient and other available temperature readings to look for a persistent offset.
- Inspect the Drive Motor C sensor mounting and connector for displacement, looseness, corrosion, or damage.
- Check the sensor signal and wiring for stable continuity and the correct response using the manufacturer's specifications.
- If mounting and wiring are sound, test the sensor for calibration drift and check the control-module input.
Common fixes
- Secure the Drive Motor C temperature sensor in its correct mounting position.
- Clean or repair a poor connector connection.
- Repair damaged sensor wiring or terminals.
- Replace the sensor if its output remains outside the manufacturer's expected response.
Can I keep driving?
Avoid sustained high loads and stop if the vehicle shows a motor temperature warning or loses substantial power. An implausible reading can lead to unnecessary power limiting or leave the motor's actual temperature inadequately monitored.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.