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Generator On-Vehicle Tests - Load Test

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. Switch the tester to the ammeter function.
  2. Connect the positive and negative leads of the tester to the corresponding battery terminals.
  3. Connect the current probe to the generator B+ output terminal, circuit CABLEPRO (RD).
  4. With the engine running at approximately 2,000 RPM, adjust the tester load bank to determine the output of the generator. Generator output should be greater than the graph shown below. If not, refer back to the pinpoint test or Go to Symptom Chart .
    5. Fig 1: Load Test Output Chart
    GF0008254Courtesy of FORD MOTOR CO.
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