Pinpoint Test H: Radio Interference

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

H1 VERIFY THE GENERATOR IS THE SOURCE OF RADIO INTERFERENCE
NOTE: If the original equipment manufactured (OEM) audio unit has been replaced with an aftermarket unit, the vehicle may not pass this test. Return the vehicle to OEM condition before following this pinpoint test.
- Key in START position.
  Start and run the engine.
- Tune the radio to a station where the interference is present.
- Key in OFF position.
- Disconnect: Generator C102c.
- Key in START position.
  With the engine running, determine if the interference is still present.
- Is the interference present with the generator disconnected?
- Yes : REFER to ENTERTAINMENT SYSTEM - GENERAL INFORMATION for the diagnosis and testing of the in-vehicle entertainment system.
- No : INSTALL a new generator. REFER to GENERATOR AND REGULATOR . TEST the system for normal operation.