Pinpoint Test A : Poor Reception - Am/Fm: Notes
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
Diagnostic Overview
Refer to Audio System/Navigation for schematic and connector information.
Normal Operation and Fault Conditions
Refer to Information and Entertainment System - Premium Plus , AM/FM Radio.
The RDS function allows the vehicle operator to choose which genre (category) of music to listen to. When the SCAN button is pressed, the ACM only stops at channels falling within the selected category. If no channel in the selected category is found, the ACM continues to scan without stopping. This may appear to be a reception issue, but it is actually due to the customer setting.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1A56:21 | Antenna: Signal Amplitude < Minimum | Sets when the signal strength is less than the pre-configured threshold value during the ACM self-test. |