What it means
The control module monitors the performance of the drive motor A clutch actuator as it responds to commands. It sets this code when the actuator does not achieve the expected operation within the monitored limits.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
The drive motor A clutch actuator moves the clutch in response to commands from the hybrid or transmission control module. This code sets when the module detects that the actuator's operation does not meet expected performance, even if the clutch is not consistently stuck engaged or disengaged.
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 hybrid and transmission-module codes and freeze-frame data to identify when drive motor A clutch actuator performance fell outside the expected range.
- Compare commanded and reported actuator or clutch position in live data and check for slow, incomplete, or inconsistent movement.
- Inspect the actuator connector and harness for damage, corrosion, loose terminals, or contamination.
- Check any associated hydraulic pressure and actuator response using the manufacturer's diagnostic procedure.
- If wiring and pressure are within specification, test the actuator and clutch mechanism for sticking or wear.
Common fixes
- Repair damaged or poorly connected actuator wiring.
- Correct a confirmed hydraulic pressure or control issue affecting actuator movement.
- Clean, free, or replace the drive motor A clutch actuator if it responds sluggishly or inconsistently.
- Repair the clutch mechanism if it causes the actuator performance fault.
Can I keep driving?
Limit driving if shifts are harsh, delayed, or accompanied by slipping or shuddering; the vehicle may enter limp mode and continued use can worsen clutch damage. Stop if the vehicle cannot shift or deliver power predictably.
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.