What it means
The calibration data programmed for pressure control solenoid C does not match the format expected by the transmission controller.
At a glance
- Usually lights the check-engine light
How it works
Pressure control solenoid C helps the TCM regulate transmission hydraulic pressure. This code sets when the calibration data assigned to solenoid C does not match the format or version expected by the TCM, so the controller may not use the correct pressure-control settings.
Common causes
Most likely first.
- Replacement solenoid incompatible with software version
- Calibration code format does not match controller version
Symptoms
- Check engine or transmission warning light may be on
- Harsh, delayed, or erratic shifting
- Transmission may enter a limited operating mode
How to diagnose it
- Record freeze-frame data and check related transmission codes, noting whether the fault followed replacement or programming of solenoid C.
- Confirm that pressure control solenoid C is compatible with the transmission and the TCM's software version.
- Read solenoid C's calibration data and compare its format with the controller's requirements.
- Verify that the calibration for solenoid C was entered correctly during installation or programming.
- If the solenoid and calibration match, check vehicle-specific service information for a TCM update or calibration procedure.
Common fixes
- Enter the correct calibration data for pressure control solenoid C.
- Replace an incompatible solenoid C with one that matches the transmission and TCM version.
- Correct the format or entry of solenoid C's calibration data.
- Update or reprogram the TCM if vehicle-specific service information requires it.
Can I keep driving?
Limit driving if shifting is harsh, delayed, or erratic, or if the transmission enters a limited mode, since incorrect pressure control can contribute to wear. Stop driving if shifts become unpredictable or the vehicle cannot maintain a suitable gear.
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.