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Cruise Control Servo

  1. Turn ignition on. Place cruise control switch in ON position. Using external voltmeter, connect negative lead to vehicle ground. Disconnect servo connector. Check voltage at pin No. 2 of servo connector. See Figure . If voltage is less than battery voltage, check for loose connections, brake switch adjustment or damaged harness.
  2. Connect a jumper wire between terminal No. 2 of servo connector and corresponding terminal of servo. Check voltage at 3 remaining male servo terminals. If voltage is less than battery voltage at each terminal, replace servo.
  3. Using external ohmmeter, measure resistance between terminal No. 1 of servo connector and vehicle ground. If resistance is more than 5 ohms, check and repair harness as needed.
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