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Home >> Cadillac >> 1997 >> Seville STS >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Memory System) >> System Testing >> One Mirror Does Not Move Up & Down For Manual & Recall Functions >> Left Mirror
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Left Mirror

WARNING: This page is about a different car, the 1998 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform MEMORY SYSTEM CHECK  under TESTING - SYSTEM CHECKS. Go to next step.
  2. Disconnect left outside mirror connector C1. Connect a fused (20-amp) jumper wire between component-side of outside mirror connector C1, terminal "C" (Light Green wire) and battery voltage. Connect another fused (20-amp) jumper wire between component-side of outside mirror connector C1, terminal "D" (Yellow wire) and ground. If up/down motor runs, go to next step. If up/down motor does not run, go to step 6).
  3. Disconnect Memory Mirror Module (MMM) Blue, 32-pin connector. Using DVOM, check resistance Yellow wire between MMM harness connector terminal F10 and outside mirror harness connector C1, terminal "D". If resistance is 5 ohms or less, go to next step. If resistance is not 5 ohms or less, go to step 7).
  4. Check resistance of Light Green wire between MMM harness connector C1, terminal F12 and outside mirror harness connector C1, terminal "C". If resistance is 5 ohms or less, go to next step. If resistance is not 5 ohms or less, go to step 8).
  5. Replace Memory Mirror module (MMM).
  6. Replace left outside mirror. See MIRRORS - POWER article.
  7. Repair open in circuit No. 88 (Yellow wire) between left outside mirror and MMM. See WIRING DIAGRAMS  .
  8. Repair open in circuit No. 89 (Light Green wire) between left outside mirror and MMM. See WIRING DIAGRAMS  .
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