Code Definition

P0182 — Fuel Temperature Sensor A Circuit low Input

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

About P0182

P0182 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 P0182 is stored, the module has detected a signal or supply voltage lower than the expected operating range; 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 P0182 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 P0182 fault code is set when the Engine Control Module (ECM) detects a lower than expected input signal from the Fuel Temperature Sensor A circuit. This sensor plays an important role in monitoring the temperature of the fuel in the vehicle, as fuel temperature can significantly affect fuel density, vapourization, and subsequently the air-fuel mixture and combustion process. A low input signal from this sensor may suggest a problem such as a faulty sensor, a short to ground in the sensor circuit, or issues with the wiring or connectors. This condition can lead to the ECM receiving inaccura...

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