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Circuit/System Testing

  1. Ignition OFF, Retained Accessory Power OFF, disconnect the harness connector X4 at the K9 body control module.
  2. Test for 120-160 Ω between control terminal 14 and ground.
    • If less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the X50A underhood fuse block.
    • If greater than the specified value, test the control circuit for an open/high resistance or a short to voltage. If the circuit tests normal, replace the X50A underhood fuse block.
  3. If all circuits test normal, test or replace the K9 body control module.
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