Normal Operation
WARNING: This page is about a different car, the 2013 Ford F-150. 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 in the Body Control Module (BCM) when the BCM detects that battery voltage has dropped below 9 volts on the voltage supply circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- High circuit resistance
- BCM