Code Definition

P0785 — Shift/Timing Solenoid A open malfunction/ 3-2 Shift Solenoid Circuit Electrical

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

About P0785

P0785 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 P0785 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

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 P0785 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 P0785 is set when the transmission control module (TCM) or the engine control module (ECM) in vehicles with integrated control systems detects an open circuit or an electrical malfunction in the shift/timing solenoid 'A', specifically associated with the 3-2 shift solenoid. This solenoid is crucial for controlling the timing and execution of gear shifts, particularly the downshift from 3rd gear to 2nd gear. An open circuit or electrical malfunction means there is a break or fault in the electrical pathway necessary for the solenoid's operation. This can lead to issues such as fa...

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