P0516 Fault Code

Battery Temperature Sensor Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0516 fault code indicates an issue with the battery temperature sensor circuit, specifically when the sensor detects a low voltage or an open circuit. This sensor plays a crucial role in monitoring the temperature of the battery, which helps prevent overheating and maintain optimal performance. When the circuit is faulty, it can negatively affect the charging system and lead to battery-related issues.

What are the symptoms of the P0516 code?

Common symptoms associated with the P0516 fault code may include:

• Check Engine Light illuminated on the dashboard.
• Inconsistent battery charging or discharging behaviors.
• Overheating battery during operation.
• Sudden drops in battery voltage while driving.

What causes the P0516 code?

Possible causes of the P0516 fault code include:

• A defective battery temperature sensor.
• Damaged wiring or connectors in the sensor circuit.
• Faulty engine control module (ECM) or software issues.
• Poor battery condition or connections, which may influence the sensor's readings.

How to fix P0516?

To resolve the P0516 fault code, consider the following steps:

1. Inspect the battery temperature sensor and its wiring for any visible damage or corrosion.
2. Test the battery temperature sensor using a multimeter to ensure it operates within the specified range.
3. Check and clean battery terminals and connections to ensure proper conductivity.
4. If necessary, replace the faulty sensor or repair damaged wiring.
5. Clear the fault codes from the ECU and test drive the vehicle to confirm that the issue is resolved.