Code Definition

P0996 — Transmission Fluid Pressure Sensor/Switch F Circuit Intermittent

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

About P0996

P0996 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 P0996 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

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 P0996 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 P0996 is activated when the Transmission Control Module (TCM) detects intermittent signals from the Transmission Fluid Pressure Sensor/Switch 'F' Circuit. This condition points to an erratic pattern of signal transmission, which can be caused by intermittent electrical connections, sporadic sensor performance, or fluctuations in the transmission fluid pressure. The intermittent nature of this fault often suggests issues with wiring or connections rather than a constant mechanical fault.

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