P0779 Intermittent / unstable signal in the automatic transmission pressure control solenoid valve “B” circuit
P0779 - OBD-II Trouble Code Technical Description Trouble P0779 is a general transmission-related trouble code that indicates an intermittent/intermittent signal in the transmission pressure control solenoid valve B circuit. What does trouble code P0779 mean? Trouble code P0789 indicates a problem with the transmission pressure control solenoid valve. This usually means that the transmission pressure control solenoid valve “C” has failed or has a problem with its circuit. In vehicles with an automatic transmission controlled by the engine control module (PCM), pressure control solenoid valves are used to regulate transmission pressure. This is necessary to ensure proper gear shifting and optimal transmission performance. When the P0789 code appears, a number of problems may arise...