Code Definition

P0707 — Transmission Range Sensor Circuit Low Input

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

About P0707

P0707 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 P0707 is stored, the module has detected a signal or supply voltage lower than the expected operating range; a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour; and a sensor-related fault — the reported value from the named sensor is out of spec.

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 P0707 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 P0707 code is triggered when the Engine Control Module (ECM) or Transmission Control Module (TCM) detects a low input signal from the transmission range sensor circuit. This sensor, also known as the Park/Neutral Position (PNP) switch, informs the ECM/TCM about the current gear selection of the transmission. A low input signal typically indicates a short to ground or an electrical fault in the sensor or its circuit. This condition can lead to inaccurate or false transmission gear position readings, affecting the vehicle's ability to start, transmission shifting patterns, and the operation ...

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