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Test G: 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.

  1. Verify Generator Is Source Of Radio Interference

    Start and run the engine. Tune the radio to a station where the interference is present. Turn ignition off. Disconnect generator B+ terminal. Start engine. With the engine running, determine if the interference is still present. Is the interference present with the generator disconnected? If yes, diagnose in-vehicle entertainment system. If no, install a new generator. See GENERATOR  under REMOVAL & INSTALLATION. Test system for normal operation.
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