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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector(s) at the affected module.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminals and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. If all circuits tests normal, replace the appropriate module.
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