Code Definition

P0514 — Battery Temperature Sensor Signal Error

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

About P0514

P0514 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 P0514 is stored, the module has detected 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 P0514 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 P0514 fault code is set when the Engine Control Module (ECM) detects an error in the signal from the battery temperature sensor. This sensor monitors the temperature of the vehicle's battery, which is important for ensuring optimal charging and prolonging the battery's lifespan. Battery temperature can affect the charging rate, and extreme temperatures can lead to reduced battery efficiency or damage. An error in the battery temperature sensor signal might suggest a malfunctioning sensor, wiring or connector issues, or a problem with the circuit. This can lead to inaccurate temperature rea...

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