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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the KR74 Ignition Run Relay clicks ON and OFF when commanding the Auxiliary Ignition Run Relay On and Off with a scan tool.
    • If the KR74 Ignition Run Relay does not click ON and OFF 

      Refer to Circuit/System Testing below

    • Go to next step: If the KR74 Ignition Run Relay clicks ON and OFF 
  3. All OK.
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