Transmission Fluid Pressure High
TCM detects line pressure above the calibrated maximum, suggesting stuck pressure regulator valve or solenoid fault.
Affected components
- Pressure regulator valve
- Pressure control solenoid
- Valve body
Common causes
- High likelihood: Pressure regulator valve stuck
- Medium likelihood: Pressure control solenoid fault
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.