LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 1979 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Electrical >> Body Electrical >> Speed Control Systems - Automatic >> Testing >> Engagement Switch
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engagement Switch

  1. Disconnect switch harness three wire connector at lower part of steering column. Connect an ohmmeter between terminal 1 (Brown wire) and terminal 2 (Blue wire). Continuity should be maintained until switch is pressed all the way in.
  2. Connect ohmmeter between terminal number 1 (Brown wire) and terminal number 3 (Black wire). No continuity should be shown. With button partially depressed, ohmmeter should show continuity. With button fully depressed, ohmmeter should again show no continuity.
  3. Connect ohmmeter between terminal number 2 (Blue wire) and terminal number 3 (Black wire). No continuity should be shown. With button partially and then fully depressed, continuity should be shown.