Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 1997 >> Probe Base, Automatic >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System >> Trouble Shooting >> Blower Motor Operates Constantly >> Check Mode Selector Switch

Check Mode Selector Switch

Turn ignition off. Disconnect mode selector switch connector, located behind control panel. Turn mode selector switch off. Measure resistance between mode selector switch Blue/Yellow wire and Black wire terminals. If resistance is greater than 10,000 ohms, repair short to ground in Blue/Yellow wire, Blue/White wire, Red/Black wire, Black wire and/or Green/Red wire. If resistance is less than 10,000 ohms, replace mode selector switch.