Pressure Control Solenoid A Control Circuit / Open
The transmission's pressure control solenoid A has a broken electrical connection, like a light switch with a loose wire. The engine computer can't send signals to control transmission fluid pressure properly.
The ECM monitors voltage and current flow through the solenoid control circuit. It expects specific resistance and continuity when commanding the solenoid on/off. An open circuit means zero current flow, triggering the fault code.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Solenoid Circuit Resistance | 4-12 ohms | Infinite resistance (open) |
| Control Signal Voltage | 0V or 12V switching | No voltage change detected |
Code P0960 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0960 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.