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Home >> Buick >> 2016 >> Envision >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> DTC B3205: Driver Window Motor >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON
  2. Verify the driver window functions while commanding the Driver Window Motor Up and Down with a scan tool.
    • If the Up and Down functions do not work 

      Replace the M74D Window Motor - Driver.

    • If the UP and DOWN functions works 
  3. Verify the driver window performs the Express Up and Express Down functions with the S79D Window Switch-Driver.
    • If the driver window performs the Express Up and Express Down functions 
  4. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
  5. Ignition ON
  6. Verify the driver window performs the Express Up and Express Down functions with the S79D Window Switch-Driver.
    • If the driver window does not Express Up and Express Down 

      Replace the M74D Window Motor - Driver

    • If the driver window performs the Express Up and Express Down functions 
  7. All OK.
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