Testing and Inspection for B Series Truck Blower Motor Switch
Blower Motor Switch: Testing and Inspection
1. Disconnect electrical connector from blower control switch.
2. Check for continuity between switch terminals. Continuity should exist between terminals;
B and LY ........................................................................................................................................................................................... switch position 1
B and L .............................................................................................................................................................................................. switch position 2
B and LR ........................................................................................................................................................................................... switch position 3
B and LB ........................................................................................................................................................................................... switch position 4