FixVault
Home › Buick › 1979 › Skyhawk Base, Automatic Trans › Repair and Diagnosis › Electrical › Body Electrical › Speed Control Systems - Automatic › Testing › Engagement Switch Wiring Harness

Engagement Switch Wiring Harness

  1. Disconnect switch harness three wire connector at lower part of steering column. Disconnect battery ground cable.
  2. Connect ohmmeter between Brown/White wire (in main wire harness) and ground. Make sure regulator is well grounded. Ohmmeter should read 42-49 ohms.
  3. If resistance is above or below specified value, disconnect harness connector at transducer and measure resistance of Brown/White resistance wire. Resistance should measure 38-42 ohms. If resistance not as specified, replace wire harness.
    Fig 1: Vacuum and Electrical Diagram of General Motors Cruise Master Speed Control System
    G09348654Courtesy of GENERAL MOTORS COMPANY
About FixVault