Possible Causes:
* Low Battery Voltage: A weak battery or faulty alternator can't supply enough power to both the ABS and EPS systems, causing them to shut down and illuminate the warning lights. This is a common cause for both lights to come on at once.
* Faulty Battery Ground: A poor connection at the battery's negative terminal can cause similar issues.
* Faulty ABS Module: While less likely to cause the EPS light as well, a malfunctioning ABS module can trigger both lights. This is a more serious issue requiring professional diagnosis.
* Faulty EPS Module: A failing EPS module can cause the EPS light, and if it draws excessive power or creates a system fault, it might also trigger the ABS light due to the shared electrical system.
* Body Control Module (BCM) Problem: The BCM manages many vehicle systems and a fault could potentially affect both ABS and EPS.
* Wiring Issues: Damaged or corroded wiring between the modules and the battery could also cause power supply issues to both systems.
What to Do:
1. Check the Battery and Alternator: This is the first and easiest step. Have the battery's voltage tested at an auto parts store or using a multimeter. Also, have the alternator tested to ensure it's charging properly.
2. Check Battery Terminals and Ground: Inspect the battery terminals and ground cable for corrosion and tightness. Clean any corrosion with a wire brush and ensure a secure connection.
3. OBD-II Scan: Have the car's OBD-II system scanned at an auto parts store or using an OBD-II scanner. This will retrieve diagnostic trouble codes (DTCs) that pinpoint the problem. The codes will be crucial for accurate diagnosis.
4. Professional Diagnosis: If the battery, alternator, and terminals are fine, and OBD-II scan reveals any codes beyond simple battery issues, take the vehicle to a qualified mechanic specializing in Chrysler vehicles. They can use specialized diagnostic tools to pinpoint the exact cause. Ignoring the problem could lead to more serious issues or even safety hazards (loss of power steering).
Important Note: Driving with the EPS light on means you'll have reduced or no power steering. This can make steering significantly more difficult, especially at low speeds. It's advisable to limit driving until the issue is resolved.
