P0797

Pressure Control Solenoid C Stuck On

High severity

The TCM detects that pressure control solenoid C remains energized hydraulically despite commanded de-energization. Line pressure or shift quality deviates from target.

Common causes

Solenoid mechanically stuck
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $440-2750
Valve body contamination
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $440-2750
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0797 mean?

P0797 means "Pressure Control Solenoid C Stuck On". It is a generic OBD-II code that points to a fault in the transmission.

What are the most common causes of P0797?

solenoid mechanically stuck; valve body contamination; carbon or debris buildup preventing free movement — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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