Code Definition

P0770 — Shift Solenoid E open circuit

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

About P0770

P0770 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 P0770 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 P0770 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 P0770 is set when the transmission control module (TCM) or the engine control module (ECM) in vehicles with integrated control systems detects an open circuit condition in shift solenoid 'E'. An open circuit in this context implies a break or disconnection in the electrical path that powers the solenoid. Shift solenoid 'E' is instrumental in regulating hydraulic fluid flow for the activation of specific gears in the transmission. An open circuit can prevent the solenoid from receiving electrical signals, thereby impairing its functionality and potentially leading to issues such ...

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