Code Definition

P083C — Transmission fluid pressure switch signal low - Circuit G

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

About P083C

P083C 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 P083C is stored, the module has detected a signal or supply voltage lower than the expected operating range.

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 P083C 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 P083C fault code is set when the Engine Control Module (ECM) or Transmission Control Module (TCM) detects a low signal from the transmission fluid pressure switch in Circuit G. This pressure switch is integral to the transmission's hydraulic system, monitoring the fluid pressure in a designated part of the transmission (referred to as Circuit G). The pressure switch's signal is essential for the TCM to accurately control the hydraulic pressure, which is vital for proper gear engagement and shifting. A low signal condition can indicate a problem with the pressure switch itself, a partial sh...

Join TaT to view the complete code information and diagnostic details.

Quick Facts