Pinpoint Test E: Radio Interference

E1 VERIFY THE GENERATOR IS THE SOURCE OF THE RADIO INTERFERENCE
NOTE: If the 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 audio unit to a station where the interference is present.
- Key in OFF position.
- Disconnect: Generator C102b
- Key in START position.
- With the engine running, determine if the interference is still present.
- Is the interference present with the generator disconnected?
1. YES : REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article for diagnosis and testing of the in-vehicle entertainment system.
2. NO : INSTALL a new generator. REFER to GENERATOR AND REGULATOR article. TEST the system for normal operation.