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HOMESERVICE MANUALSGMC2020ACADIA SLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 195 (FIXED AND MOVEABLE WINDOWS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B316B, B317A, B318A, OR B319A (WITH DRIVER/FRONT PASSENGER EXPRESS UP/DOWN WINDOWS)CIRCUIT/SYSTEM VERIFICATION
2020 GMC Acadia SL

Circuit/System Verification

2020 GMC Acadia SLSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2021 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Driver Left Front Window Switch @ S79D Window Switch - Driver - Not Used

    Verify the scan tool parameter:

    • Driver Window Main Control Down Switch = Inactive
    • Driver Window Main Control Up Switch = Inactive
    • Driver Window Main Control Express Switch = Inactive
    • If not the specified state 

      Refer to Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  3. S79D Window Switch - Driver - Not Used

    Verify the scan tool parameter:

    • Left Rear Window Main Control Down Switch = Inactive
    • Left Rear Window Main Control Express Switch = Inactive
    • Left Rear Window Main Control Up Switch = Inactive
    • Right Rear Window Main Control Down Switch = Inactive
    • Right Rear Window Main Control Express Switch = Inactive
    • Right Rear Window Main Control Up Switch = Inactive
    • Front Passenger Window Main Control Down Switch = Inactive
    • Front Passenger Window Main Control Express Switch = Inactive
    • Front Passenger Window Main Control Up Switch = Inactive
    • If not the specified state 

      Test or replace the component: S79D Window Switch - Driver

    • Go to next step: If the specified state 
  4. Operate the component: Driver Left Front Window Switch @ S79D Window Switch - Driver - Pressed & Pulled

    Verify the scan tool parameter:

    • Driver Window Main Control Down Switch = Active
    • Driver Window Main Control Up Switch = Active
    • Driver Window Main Control Express Switch = Active
    • If not the specified state 

      Refer to Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  5. Operate the component: Left Rear Window Switch @ S79D Window Switch - Driver - Pressed & Pulled

    Verify the scan tool parameter:

    • Left Rear Window Main Control Down Switch = Active
    • Left Rear Window Main Control Express Switch = Active
    • Left Rear Window Main Control Up Switch = Active
    • If not the specified state 

      Test or replace the component: S79D Window Switch - Driver

    • Go to next step: If the specified state 
  6. Operate the component: Right Rear Window Switch @ S79D Window Switch - Driver - Pressed & Pulled

    Verify the scan tool parameter:

    • Right Rear Window Main Control Down Switch = Active
    • Right Rear Window Main Control Express Switch = Active
    • Right Rear Window Main Control Up Switch = Active
    • If not the specified state 

      Test or replace the component: S79D Window Switch - Driver

    • Go to next step: If the specified state 
  7. Operate the component: Right Front Window Switch @ S79D Window Switch - Driver - Pressed & Pulled

    Verify the scan tool parameter:

    • Front Passenger Window Main Control Down Switch = Active
    • Front Passenger Window Main Control Express Switch = Active
    • Front Passenger Window Main Control Up Switch = Active
    • If not the specified state 

      Test or replace the component: S79D Window Switch - Driver

    • Go to next step: If the specified state 
  8. S79P Window Switch - Passenger - Not Used

    Verify the scan tool parameter: Passenger Window Switch at Door = Inactive

    • If not the specified state 

      Refer to Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  9. Operate the component: S79P Window Switch - Passenger - Pressed & Pulled

    Verify the scan tool parameter:

    • Passenger Window Switch at Door = Up
    • Passenger Window Switch at Door = Express Up
    • Passenger Window Switch at Door = Down
    • Passenger Window Switch at Door = Express Down
    • If not the specified state 

      Refer to Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  10. S79LR Window Switch - Left Rear - Not Used

    Verify the scan tool parameter: Left Rear Window Switch at Door = Inactive

    • If not the specified state 

      Test or replace the component: S79LR Window Switch - Left Rear

    • Go to next step: If the specified state 
  11. Operate the component: S79LR Window Switch - Left Rear - Pressed & Pulled

    Verify the scan tool parameter:

    • Left Rear Window Switch at Door = Up
    • Left Rear Window Switch at Door = Down
    • Left Rear Window Switch at Door = Express Down
    • If not the specified state 

      Test or replace the component: S79LR Window Switch - Left Rear

    • Go to next step: If the specified state 
  12. S79RR Window Switch - Right Rear - Not Used

    Verify the scan tool parameter: Right Rear Window Switch at Door = Inactive

    • If not the specified state 

      Test or replace the component: S79RR Window Switch - Right Rear

    • Go to next step: If the specified state 
  13. Operate the component: S79RR Window Switch - Right Rear - Pressed & Pulled

    Verify the scan tool parameter:

    • Right Rear Window Switch at Door = Up
    • Right Rear Window Switch at Door = Down
    • Right Rear Window Switch at Door = Express Down
    • If not the specified state 

      Test or replace the component: S79RR Window Switch - Right Rear

    • Go to next step: If the specified state 
  14. All OK.
RENDER: 1.0x

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