1999 Cadillac CateraFACTORY OEM SERVICE PROCEDURE

Test 2: Left Front Window Express Feature Inoperative

  1. If power window system check was performed, go to next step. If power window system check was not performed, perform system check. See SYSTEM CHECK  under TROUBLE SHOOTING.
  2. If left front window regulator motor operates properly from left front window switch, go to step  4 . If left front window regulator motor does not operate properly from left front window switch, go to next step.
  3. Go to TEST 6: LEFT FRONT WINDOW INOPERATIVE  . After repair is complete, go to step  7 .
  4. Program left front window regulator motor. See WINDOW MOTOR  under PROGRAMMING. When programming is complete, go to next step.
  5. If left front window regulator motor express up and down operates properly, system is okay. If left front window regulator motor express up and down does not operate properly, go to next step.
  6. Replace left front window regulator motor. See WINDOW REGULATOR & MOTOR  under REMOVAL & INSTALLATION. After repair is complete, go to next step.
  7. Connect all connectors and components that were disconnected. Verify left front window express up and down feature operates properly. If left front window express up and down feature does not operate properly, go to step  1 .
Chapter Navigation
Return to Chapter: System Tests
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.