Cruise Control Vacuum Solenoid: Testing and Inspection

1. Remove the auto-cruise vacuum pump connector.
2. Measure the resistance value between connector terminal 1 and 2, and connector terminals 2 and 4.

Standard value: 50 - 60 Ohms

3. Check that the solenoid valve makes an operating noise when battery voltage is impressed between terminals 2 and 1 and connector terminals 2 and 4.
4. If there is a malfunction of the solenoid valve. Replace the cruise vacuum pump assembly.