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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gauges >> Diagnostic Information and Procedures >> Engine Coolant Level Indicator Malfunction (LWN) >> Circuit/System Verification

Circuit/System Verification

  1. Verify proper engine coolant level.
    • If not at proper level 

      Add coolant as necessary.

    • Go to next step: If at proper level 
  2. Ignition ON, verify the scan tool Coolant Level Switch parameter reads CLOSED.
    • If not CLOSED 

      Refer to Circuit/System Testing.

    • Go to next step: If CLOSED 
  3. All OK.
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