Pinpoint Test D : Radio Interference: Notes

WARNING: This page is about a different car, the 2016 Ford Transit-350 HD, 2016 Ford Transit-350, 2016 Ford Transit-250, and 2016 Ford Transit-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Charging System for schematic and connector information.

Normal Operation and Fault Conditions

The generator radio suppression equipment reduces interference transmitted through the speakers by the vehicle electrical system.

NOTE: If the Original Equipment Manufacturer (OEM) ACM has been replaced with an aftermarket unit, the vehicle may not pass this test. Return the vehicle to Original Equipment Manufacturer (OEM) condition before following this pinpoint test.

NOTE: Inspect for any aftermarket accessories. Check the wiring for these accessories and be sure they have not been attached to the generator circuits and are positioned away from the generator wiring.

Possible Sources

Generator
In-vehicle entertainment system
Wiring, terminals or connectors

Visual Inspection and Diagnostic Pre-checks

Inspect the generator.
Inspect the in-vehicle entertainment system.