Normal Operation
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- DTC U3003:16 (Battery Voltage: Circuit Voltage Below Threshold) - sets continuous and on-demand in the Headlamp Control Module (HCM) if the HCM detects battery voltage below 9 volts from the HCM voltage supply circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- HCM