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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the EBCM.
  2. Test for less than 1 ohm of resistance between the ground terminals 13 and 38 and ground.
    • If greater than the specified range, test the ground circuits for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ terminals 25 and 1 and ground.
    • If the test lamp does not illuminate, test the B+ circuits for a short to ground or an open/high resistance.
  4. If all circuits test normal, replace the EBCM.
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