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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Heating And Cooling System) >> Diagnostic Information and Procedures >> DTC P0526 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Observe the DTC information with a scan tool. Verify DTC P0651 is not set.
    • Go to next step: If no DTC is set 
  2. Observe the DTC information with a scan tool. Verify DTC P0526 is not set.
    • Go to next step: If no DTC is set 
  3. Engine running, verify the scan tool Fan Speed parameter is greater than 0 RPM.
    • If 0 RPM 

      Refer to Circuit/System Testing.

    • Go to next step: If greater than 0 RPM 
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
    • If DTC sets 

      Refer to Circuit/System Testing

    • If no DTC is set 
  5. All OK.
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