P0518 - Battery Temperature Sensor Circuit Intermittent

The battery temperature sensor signal is intermittent.

Code Overview

The battery temperature sensor signal is intermittent.

Common Causes

• Failed battery temperature sensor
• Damaged wiring or connector
• Battery monitoring system fault

Diagnostic Steps

1. Inspect the sensor connector and harness
2. Compare battery temperature data to ambient conditions
3. Check for corrosion or poor terminal contact

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.