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DTC codes / P28xx · Transmission / P2813
P2813 indicates that the transmission control module (TCM) has detected an abnormal condition in the electrical circuit for pressure control solenoid G, which is used to regulate hydraulic pressure inside the automatic transmission. The TCM monitors the solenoid's command signal and the resulting pressure or electrical feedback, and it sets this code when the circuit's performance falls outside the expected range for a calibrated period. This typically results in degraded shift quality or limited transmission operation.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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