Code Definition

P0927 — Gear Shift Reverse Actuator Circuit High

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

About P0927

P0927 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 P0927 is stored, the module has detected a signal or supply voltage higher 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 P0927 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 P0927 fault code is activated when the control module detects a high voltage condition in the gear shift reverse actuator circuit. This circuit is integral to the operation of the reverse gear mechanism, typically involving even-numbered gears (2, 4, 6). A high voltage condition in this circuit usually indicates an electrical fault, such as a short to power or an internal issue within the actuator, leading to voltage levels exceeding the normal operating range. This abnormal voltage can affect the proper functioning of the gear shift mechanism, potentially causing issues in engaging or mai...

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