Pressure Control Solenoid Performance or Stuck Off
The transmission pressure control solenoid is not operating correctly.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The transmission uses a pressure control solenoid to adjust hydraulic pressure for shifting. If it's stuck off, the shifts can be harsh or might not happen at all.
What the computer is actually seeing
The engine control module (ECM) is expecting the solenoid to adjust pressure based on vehicle speed and load, but it sees no change or incorrect operation.
What a healthy reading looks like
Expected voltage at the solenoid connector should be around 12V when activated, with pressure readings between 30-70 psi during normal operation.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the transmission fluid level; top off if low, then retest.
- 22. Inspect wiring and connectors to the pressure control solenoid for any damage or corrosion. Fix any issues found.
- 33. Measure the voltage and ground at the pressure control solenoid connector with the engine running; should be around 12V. If not, trace wiring back to the ECM and repair accordingly.
- 44. If voltage is correct, remove the solenoid and inspect for physical damage or blockage; replace if necessary.
- 55. Clear the code and test drive the vehicle; if the code returns, further diagnose the transmission control module.
Common causes
- Wiring issues (shorts or opens in harness)
- Faulty pressure control solenoid
- Low transmission fluid level or contamination
- Faulty transmission control module (TCM)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to avoid driving. You could face harsh shifting or transmission damage.
Will this code come back after clearing it?
If the underlying issue isn't fixed, the code will return.
Why does this code pair with other transmission codes?
Transmission systems are interconnected, so issues with one component can trigger multiple codes.
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