Code Definition

P0516 — Battery Temperature Sensor Circuit Low

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

About P0516

P0516 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 P0516 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 P0516 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 P0516 fault code is set when the Engine Control Module (ECM) detects a lower than expected input signal from the battery temperature sensor circuit. This sensor plays a crucial role in monitoring the temperature of the vehicle's battery. The battery temperature influences the charging rate and overall battery efficiency, with extreme temperatures potentially leading to reduced battery life or damage. A low input signal might suggest an electrical issue, such as a short to ground in the sensor circuit, a malfunctioning sensor, or problems with the wiring or connectors. This condition can le...

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