Vent Circuit Open (Test D)

If less than 30 ohms were present, refer to, in this article, VENT CIRCUIT SHORT (TEST J)  test. If more than 30 ohms were present, remove connector from cruise control servo. Check resistance between terminals "A" and "C" of servo. If resistance is more than 55 ohms, replace servo. If resistance is less than 55 ohms, check for an open Dark Blue wire between terminal "C" of module and terminal "A" of servo. Ensure terminal "C" of servo connector is grounded.