Pinpoint Test F : U300A:62: Notes
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
The EPB module receives ignition switch voltage from BCM fuse 22 (5A) along a hardwired circuit. The EPB module also receives an ignition switch status message from the BCM through the GWM. The EPB module uses the hardwired voltage input to validate the CAN message and it uses the CAN message to validate the hardwired voltage input circuit.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U300A:62 | Ignition Switch: Signal Compare Failure | This DTC sets in continuous memory and on-demand if the hardwired ignition voltage and the ignition status CAN message are inconsistent to one another from longer than 5 seconds. |
Possible Sources
- Fuse
- Wiring, terminals or connectors
- Network concern
Visual Inspection and Diagnostic Pre-checks
- Make sure BCM fuse 22 (5A) is OK.