Code Definition

P0796 — Pressure Control Solenoid C Performance or Stuck off

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0796

P0796 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0796 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0796 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The fault code P0796 is set when the transmission control module (TCM) or the engine control module (ECM) in vehicles with integrated control systems detects that the pressure control solenoid 'C' is either not performing as expected or is stuck in the 'off' position. This solenoid plays a critical role in regulating hydraulic pressure within the transmission, necessary for proper gear engagement and shifting. When the solenoid is performing poorly or is stuck off, it fails to properly regulate the hydraulic pressure, leading to transmission issues such as delayed gear shifts, inability to shi...

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