P0515

Battery Temperature Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–56 (est.)

Symptoms

Incorrect battery charging
Check Engine light comes on
Problems starting the engine
Reduced efficiency of the vehicle's electrical system

Causes

Open or short circuit in the sensor wiring harness
Battery temperature sensor malfunction
Poor contact in sensor connectors
ECU problems

How to Fix

Check the integrity of the sensor wiring harness
Check the resistance of the battery temperature sensor
Clean or replace sensor connectors
If necessary, replace the battery temperature sensor
Check and, if necessary, reflash the ECU

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