Battery Temperature Sensor Circuit Range/Performance
The P0514 code indicates that the battery temperature sensor circuit is reporting a voltage or resistance value outside the expected range. This sensor monitors battery temperature to optimize charging voltage. A faulty sensor, wiring issues, or a weak battery can trigger this code, potentially leading to overcharging or undercharging.
01. Most Common Causes
- Faulty battery temperature sensor
- Open or shorted wiring in sensor circuit
- Corroded or loose connector at sensor
- Weak or failing battery
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Battery warning light on dashboard
- Poor battery performance or charging issues
- Hard starting or slow crank
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect battery temperature sensor and wiring for damage or corrosion.
Step 3: Test sensor resistance with a multimeter and compare to manufacturer specs.
Step 4: Check battery voltage and condition; load test if necessary.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is generally safe for short trips, but the battery may not charge properly, leading to a dead battery or starting issues. It's best to diagnose and fix promptly.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150, including parts (sensor $20-$60) and labor (0.5-1 hour).