Air Recirculation Malfunction

TEST DESCRIPTION

Steps 1-7:

Steps 8-15:

The number(s) below refer to the step number(s) on the diagnostic table.
4. Tests for voltage at the coil side of the recirculation vacuum solenoid valve. The heater and A/C control supplies power to the coil side of the recirculation vacuum solenoid valve.
5. Verifies that the heater and A/C control is providing ground to the recirculation vacuum solenoid valve.
6. Tests if ground is constantly being applied to the recirculation vacuum solenoid valve.