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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Fixed And MOVEABLE Window System) >> Diagnostic Information and Procedures >> Power Windows Malfunction (A55 With A33) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Operate the component: Driver Left Front Window Switch - Pressed & Pulled
  3. Verify the component operates in both directions: 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: Right Front Window Switch @ S79D Window Switch - Driver - Pressed & Pulled
  5. Verify the component operates in both directions: 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 operates in both directions: M74P Window Motor - Passenger= Up & Down
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 3

    • If the specified state 
  8. Operate the component: Left Rear Window Switch @ S79D Window Switch - Driver - Pressed & Pulled
  9. Verify the component operates in both directions: M74LR Window Motor - Left Rear= Up & Down
    • If not the specified state 

      Refer to Circuit/System Testing - Test 4

    • If the specified state 
  10. Window Lockout Switch - Not Pressed
  11. Operate the component: S79LR Window Switch - Left Rear - Pressed & Pulled
  12. Verify the component operates in both directions: M74LR Window Motor - Left Rear= Up & Down
    • If not the specified state 

      Refer to Circuit/System Testing - Test 4

    • If the specified state 
  13. Operate the component: Right Rear Window Switch @ S79D Window Switch - Driver - Pressed & Pulled
  14. Verify the component operates in both directions: M74RR Window Motor - Right Rear= Up & Down
    • If not the specified state 

      Refer to Circuit/System Testing - Test 5

    • If the specified state 
  15. Window Lockout Switch - Not Pressed
  16. Operate the component: S79RR Window Switch - Right Rear - Pressed & Pulled
  17. Verify the component operates in both directions: M74RR Window Motor - Right Rear= Up & Down
    • If not the specified state 

      Refer to Circuit/System Testing - Test 5

    • If the specified state 
  18. Operate the component: Window Lockout Switch - Pressed

    Verify the function:

    • S79LR Window Switch - Left Rear=Disabled
    • S79RR Window Switch - Right Rear=Disabled
    • If not the specified state 

      Refer to Circuit/System Testing - Test 6

    • If the specified state 
  19. All OK.