What it means
A fault has been detected in the drive motor C temperature sensor circuit. The code does not specify whether the fault is an open, short, or other circuit problem.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
The temperature sensor circuit reports the temperature of Drive Motor C to the vehicle controls. This code sets when the circuit has a fault, but it does not specify whether the signal is open, shorted, or otherwise incorrect; the system may limit motor output because it cannot rely on the reading.
Common causes
Most likely first.
- Sensor failed
- Wiring or connector fault
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
How to diagnose it
- Read freeze-frame and live data for Drive Motor C temperature, and check for related motor or inverter codes.
- When the vehicle is cold, compare the reported motor temperature with other temperature readings and ambient conditions for an implausible difference.
- With the high-voltage system safely disabled according to the service information, inspect the Drive Motor C temperature sensor connector and harness for looseness, damage, moisture, or corrosion.
- Check the sensor circuit for continuity, shorts, and connector integrity using the manufacturer's wiring diagram and specification.
- If wiring checks pass, test the Drive Motor C temperature sensor and control-module input using the manufacturer's procedure.
Common fixes
- Seat and secure a loose Drive Motor C temperature sensor connector.
- Repair damaged or corroded wiring and connector terminals.
- Replace the Drive Motor C temperature sensor if it fails testing.
- Repair the control-module circuit only if sensor and wiring tests pass.
Can I keep driving?
Drive gently and avoid high loads; stop if propulsion is reduced or a temperature warning appears. A faulty Drive Motor C reading can prompt power limits or prevent the vehicle from continuing to drive.
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.