Pinpoint Test A : U3003:16: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Wiring Diagram Vehicle Dynamic Suspension for schematic and connector information.
Normal Operation and Fault Conditions
The VDM requires an operating voltage that is between 9 and 16 volts. The VDM receives this voltage from the BCM. The VDM has a single ground circuit. Excessive resistance or an open in one or more of these circuits, a discharged battery or a inoperative charging system results in the VDM setting a DTC.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | This DTC sets in continuous memory and on-demand if the voltage supplied to the VDM falls below 9 volts for more than 5 seconds. |
Possible Sources
- Fuses
- Wiring, terminals or connectors
- VDM
Visual Inspection and Diagnostic Pre-checks
- Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
- Make sure the vehicle battery terminals are tightened to their correct torque specifications.
- Make sure BCM fuse 36 (15A) is OK.