P1550
Battery Current Sensor Circuit Range/Performance
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Incorrect voltage readings on the dashboard
- Battery charging problems
- Reduced engine performance
- Errors in the operation of the start-stop system
Causes
- Battery current sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Wiring harness damage
- ECM problems
How to Fix
- Check the continuity of the current sensor circuit
- Inspect the connectors and contacts of the sensor
- Check the functionality of the current sensor
- Scan the ECM for other errors
- If necessary, replace the battery current sensor