LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1997 >> DeVille Base >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Memory System >> Self-Diagnostics >> Manual Diagnostic Feature
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Manual Diagnostic Feature

  1. When MSM diagnostic connector (taped to body harness) is grounded, one chime will sound to indicate MSM has entered Diagnostic Mode 1. MSM diagnostic connector must remain grounded for entire test. During Mode 1, all seat switch inputs are tested and all seat movement is disabled. When each switch is activated, one chime will sound. If a switch is activated and no chime is heard, MSM did not receive input.
  2. To enter Mode 2, remove ground from MSM diagnostic connector, and re-establish ground within 5 seconds. During Mode 2, all position sensors are tested and seats will move. As seat is moved, MSM will test seat position sensor for a gradual voltage change. If a large change or no change in feedback voltage occurs, a chime will sound. 3) To exit either diagnostic mode, remove ground for more than 5 seconds. When diagnostic mode is exited, 3 chimes will sound.
scientia non olet · About LEMON Manuals