P0797
PowertrainTransmission Solenoidmoderate severityPressure Control Solenoid C Stuck On
What P0797 Means
Pressure control solenoid C is stuck on and not releasing properly. This causes improper hydraulic pressure in the transmission.
Symptoms
- Harsh engagement
- Transmission slipping or binding
- Warning light on
Common Causes
- Stuck pressure control solenoid C
- Debris in valve body
- Contaminated fluid
- Faulty transmission control module
Diagnostic Steps
- Scan and confirm stuck-on code
- Check transmission fluid condition
- Command solenoid off with scan tool
- Inspect valve body and solenoid
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Community Confirmed Fixes
No confirmed fixes yet for this code. Be the first to contribute!
Submit a FixFound a Fix for P0797?
Help other technicians by sharing what worked on your vehicle.
Submit Your Fix