1998 Cadillac Seville SLSFACTORY OEM SERVICE PROCEDURE

Power Mirror Memory Inoperative In One Direction

  1. If outside mirror system check was performed, go to next step. If outside mirror system check was not performed, go to OUTSIDE MIRROR SYSTEM CHECKΒ  under SYSTEM TESTS.
  2. Check for open or short in position sensor wiring between appropriate door control module and appropriate outside power mirror:

    • Left Horizontal

      circuit No. 786 (Light Blue/Black wire).
    • Left Vertical

      circuit No. 784 (Dark Green/Black wire).
    • Right Horizontal

      circuit No. 786 (Light Blue/Black wire).
    • Right Vertical

      circuit No. 784 (Dark Green/Black wire).

    If circuit is okay, go to next step. If faulty circuit is found, go to step Β 4 .

  3. Replace suspect mirror. See POWER MIRRORS - SEVILLE article. After repairs, recheck system operation.
  4. Repair open or short in faulty wiring. See WIRING DIAGRAMSΒ  . After repairs, recheck system operation.
Factory Service Tools

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When to See a Mechanic

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

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

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