Code Definition

P0928 — Gear Shift Lock Solenoid Circuit / Open

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

About P0928

P0928 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 P0928 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 P0928 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 P0928 fault code is set when the control module detects an open circuit condition in the gear shift lock solenoid circuit. This circuit controls the solenoid responsible for locking the gear shift mechanism, a feature designed to prevent unintentional gear shifts, such as shifting out of park without pressing the brake. An open circuit condition indicates a break in the electrical continuity, which can prevent the gear shift lock solenoid from functioning correctly. Causes for this condition can include severed wiring, disconnected connectors, or a fault within the solenoid itself. This is...

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