What it means
The drive motor A clutch remains engaged when the control module commands it to disengage.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
Drive motor A is part of the vehicle's hybrid or electrified drive system, and its clutch couples or separates that motor from the drivetrain. The control module sets this code when it commands the clutch to release but detects that it remains engaged.
Common causes
Most likely first.
- Clutch actuator stuck
- Hydraulic pressure off
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
How to diagnose it
- Read transmission and hybrid control-module codes and freeze-frame data to identify the command and operating conditions when motor A's clutch failed to release.
- Check live data for the commanded and reported state of the drive motor A clutch, and note any related gear or actuator faults.
- Inspect the clutch actuator connector and harness for damage, loose connections, or fluid contamination.
- Check the actuator's movement and any associated hydraulic pressure data using the manufacturer's diagnostic procedure.
- If wiring and pressure are within specification, test the drive motor A clutch for mechanical binding or internal damage.
Common fixes
- Repair a damaged or loose clutch actuator connector or harness.
- Restore hydraulic pressure by repairing the confirmed leak or pressure-control fault.
- Free or replace a clutch actuator confirmed to be stuck.
- Repair or replace the drive motor A clutch if it is mechanically stuck engaged.
Can I keep driving?
Avoid driving if shifts are harsh, slipping, or missing, or if the vehicle is in limp mode; continued use can worsen clutch or transmission damage and may leave the vehicle unable to move normally. Arrange prompt diagnosis, and stop if control of the vehicle feels unpredictable.
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.