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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the X50A Fuse Block - Underhood.
  2. Disconnect the harness connector X5 at the K9 Body Control Module.
  3. Test for less than 5 Ω between the control circuit terminal 10 at the X50A Fuse Block - Underhood and the control circuit terminal 11 X5 at the K9 Body Control Module.
    • If the value is not within the specified range, test the control circuit for a short to voltage or an open/high resistance.
    • If the circuit tests normal, test or replace the K9 Body Control Module.
  4. Test for infinite resistance between the control circuit terminal 10 at the X50A Fuse Block - Underhood and ground.
    • If the value is not within the specified range, test the control circuit for a short to ground.
  5. If all circuits test normal, test or replace the X50A Fuse Block - Underhood.
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