What it means
The calibration data programmed for pressure control solenoid H 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 H is part of the transmission's hydraulic pressure-control system. The transmission controller checks whether the calibration data for solenoid H uses a format its software can interpret. This code sets when the solenoid H data is incompatible with that expected format, potentially disrupting pressure control and shifts.
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
- Read and save transmission codes and freeze-frame data, checking whether the fault appeared after solenoid H replacement or controller programming.
- Compare the installed solenoid H identification and calibration record with the correct transmission and controller software version.
- Inspect the solenoid H connector and harness for poor seating, corrosion, fluid contamination, or damaged wiring.
- Use a transmission-capable scan tool to check the controller's reported solenoid H calibration status and any related faults.
- Verify that the calibration format for solenoid H is supported, then carry out the required setup or programming according to the manufacturer's procedure.
Common fixes
- Re-enter or correct solenoid H calibration data in a controller-supported format.
- Repair the solenoid H connector or harness if it is damaged, contaminated, or poorly connected.
- Replace an incompatible pressure control solenoid H with a unit matched to the transmission and software.
- Update the transmission controller software if the manufacturer specifies an applicable version.
Can I keep driving?
If shifting is rough or delayed, avoid towing, steep climbs, and rapid acceleration. A limited operating mode or unpredictable shifting can make the vehicle difficult to control in traffic; stop when safe and arrange recovery if that occurs.
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.