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Charging System Pinpoint Test 8: Radio Interference

PINPOINT TEST 8 - RADIO INTERFERENCE

PINPOINT TEST 8 RADIO INTERFERENCE
STEP INSPECTION ACTION
1 VERIFY THE GENERATOR IS THE SOURCE OF THE 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 0117-01.
  • Key in START position.
  • With the engine running, determine if the interference is still present.
  • With the engine running, note any radio interference.
  • Is the interference present with the generator disconnected? 
Yes See AUDIO SYSTEM DIAGNOSIS for diagnosis and testing of the in-vehicle entertainment system.
No Install a new generator. See GENERATOR REMOVAL/INSTALLATION - 2.3L or GENERATOR REMOVAL/INSTALLATION - 3.0L, 4.0L . Test the system for normal operation.