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Circuit/System Testing

WARNING: This page is about a different car, the 2013 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Diagnose and repair any communication DTCs prior to performing this testing.

  1. Ignition ON.
  2. Verify DTC P15F2 is not set.
    • If the DTC is set 
    1. Program the K20 Engine Control Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K20 Engine Control Module.
      • If the DTC does not set
    3. All OK
    • If the DTC is not set 
  3. All OK.
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