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Home >> Chevrolet >> 2017 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> Power Windows Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
  2. Operate the component: S79D Window Switch - Driver - Pressed & Pulled
  3. Verify the component works as specified: M74D Window Motor - Driver = Up & Down
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 1

    • If the specified state 
  4. Operate the component: Passenger Window Switch at S79D Window Switch - Driver - Pressed & Pulled
  5. Verify the component works as specified: M74P Window Motor - Passenger = Up & Down
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

    • If the specified state 
  6. Operate the component: S79P Window Switch - Passenger - Pressed & Pulled
  7. Verify the component works as specified: M74P Window Motor - Passenger = Up & Down
    • If not the specified state at S79P Window Switch - Passenger 

      Refer to: Circuit/System Testing - Test 3

    • If the specified state 
  8. All OK.
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