LEMON Manuals: Even more car manuals for everyone
Home >> Pontiac >> 1981 >> T1000 2D Hatchback, Automatic Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Motors, Switches, Relays >> Speed Control Systems - Automatic, General Motors Cruise Master >> Trouble Shooting & Diagnosis >> Electrical Test - "Resume" System

Electrical Test - "Resume" System

  1. Check all fuses and connections. Adjust brake release valve and switch. Disconnect switch harness 3-wire connector at lower end of steering column. Check switch continuity using continuity chart.
    "RESUME" SWITCH CONTINUITY CHART

    Button Slider Continuity
    Released OFF None
    Release ON Blu-Blk
    Released RESUME Brn-Blu-Blk
    Half In ON None
    Full In ON Brn-Blu
    Releasing ON Brn-Blu-Blk
  2. Disconnect electrical connector at resume valve. With transducer well grounded, connect an ohmmeter between ground and Brown/White wire in main wire harness. Resistance should read 27-31 ohms.
  3. Disconnect main wiring harness from transducer. Connect ohmmeter between Dk. Green wire at transducer and Gray/Black wire at resume solenoid. Resistance should be 21-25 ohms. If not, check broke switch operation. If brake switch is okay, repair or replace harness as required.
  4. Check for continuity between resume valve ground wire and ground. Repair if no continuity. Reconnect electrical connector at resume valve. With harness disconnected from transducer, connect battery voltage to Dk. Green wire. Resume valve should pull in. If not, replace valve.
  5. Check transducer by measuring resistance from Dk. Green wire to ground. Resistance should be 5.3-6.3 ohms. Apply battery voltage to transducer hold terminal. Transducer solenoid should engage, and release upon removal of battery voltage. If not, replace solenoid.