Pressure Control Solenoid C Control Circuit Range/Performance
The transmission's pressure control solenoid C isn't responding properly to the engine computer's commands—think of it like a valve that's stuck or broken, preventing proper fluid pressure adjustment. This causes the transmission to struggle with gear shifts and performance.
The ECM monitors the electrical current and response time of pressure control solenoid C as it attempts to regulate transmission fluid pressure. It compares actual solenoid behavior against expected voltage patterns and response times. If the solenoid doesn't reach proper pressure thresholds or responds outside normal electrical parameters, the fault is triggered.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Solenoid Current Draw | 0.5–2.0 amps during actuation | Outside range or no response |
| Pressure Response Time | 50–200 milliseconds to reach target | Delayed or absent pressure buildup |
Code P0969 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, P0969 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.