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Home >> Buick >> 2014 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Engine Cooling System) >> Diagnostic Information and Procedures >> Cooling Fan Always On >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the KR20C cooling fan relay.
  2. Ignition ON, observe that the cooling fan is not activated.
    • If the fan is not activated, test or replace the KR20C cooling fan relay.
  3. Ignition OFF, disconnect the KR20P cooling fan relay.
  4. Ignition ON, observe that the cooling fan is not activated.
    • If the fan is activated after the relays are removed, test for a short to voltage in the appropriate relay controlled output circuit.
  5. If the circuits test normal, test or replace the KR20P cooling fan relay.
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