P0961
Pressure Control Solenoid A Control Circuit Range/Performance
The pressure control solenoid A does not respond to commanded duty cycle within expected dynamic range, suggesting hydraulic blockage or coil weakness.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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
Common causes
Ordered by how often each turns out to be the cause.
- Solenoid sluggishCommon
- Valve body contaminationPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Pressure Control Solenoid A
- Valve Body
P0961 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.