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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> DTC B3205 or B3210: Window Motor >> Circuit/System Verification

Circuit/System Verification

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

      Replace the appropriate M74 Window Motor .

    • If the Up and Down works 
  3. Verify the driver and passenger window performs the Express Up and Express Down functions with the S79D Window Switch-Driver.
    • If the 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 and passenger window performs the Express Up and Express Down functions with the S79D Window Switch-Driver.
    • If a window does not Express Up and Express Down 

      Replace the M74 Window Motor

    • If both windows perform the Express Up and Express Down functions 
  7. All OK.
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