LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2000 >> LeSabre Custom, 4T65E/MN3 >> Repair and Diagnosis >> Body & Frame >> Seats >> Power Seat System >> System Tests >> Test J: Memory Switch Inoperative
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test J: Memory Switch Inoperative

  1. If power seat diagnostic system check has been performed, go to next step. If power seat diagnostic system check has not been performed, go to POWER SEAT DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Check operation of power windows. If power window operation is okay, go to next step. If power window operation is not okay, go to DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in POWER DOOR LOCKS - BONNEVILLE & LESABRE article.
  3. If more than one memory function is not operating properly, go to step  6 . If only one memory function is not operating properly, go to next step.
  4. Disconnect memory function switch harness connector. Measure resistance between memory function switch terminals No. 3 and 1 (for memory recall 1) or terminals No. 3 and 2 (for memory recall 2). Press suspect memory function button. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, go to step  8 .
  5. Disconnect Driver Door Switch Assembly (DDSA) harness connector. For memory recall 1 circuit, measure resistance of White wire between DDSA harness connector terminal No. 3 and memory function switch harness connector terminal No. 1. For memory recall 2 circuit, measure resistance of Purple wire between DDSA harness connector terminal No. 2 and memory function switch harness connector terminal No. 2. If resistance is less than 5 ohms, go to step  7 . If resistance is 5 ohms or more, go to step  9 .
  6. Check for open in ground circuit at memory function switch harness connector terminal No. 3 (Black/White wire). See GROUND DISTRIBUTION article in WIRING DIAGRAMS. Repair ground circuit as necessary and go to step  12 . If ground circuit is okay, go to step  8 .
  7. Inspect DDSA harness connector for poor connections. Repair connector as necessary and go to step  12 . If connector is okay, go to step  10 .
  8. Inspect memory function switch harness connector for poor connections. Repair connector as necessary and go to step  12 . If connector is okay, go to step  11 .
  9. Repair open in White or Purple wire. Go to step  12 .
  10. Replace DDSA. Go to step  12 .
  11. Replace memory function switch. Go to step  12 .
  12. Operate system to verify repair. If symptom still exists, go to step  2 . If symptom does not exist, system is okay.
scientia non olet · About LEMON Manuals