2001 quad heater blower fan not working all speeds.
2001 quad, 4.7l, 3.92 lsd rear, 5sp. Other day start truck after 2 short block trip for newspaper. Upon restart, have NO radio, NO blinkers, No Blower fan at any speed. (Previously had recall for possible wiring harness chaff from clutch pedal action, dealer declared I do not have wiring harness problem.) Got home, reseated all fuses, restarted. Radio and Blinkers work. Heater blower fan not working all speeds. Swap some identical relays and checked continuitywith dvm for all fuses inside cab and in engine compartment. All fuses good. Days later, same condition, blower fan does not work. No error codes displayed upon error code test. Cut back insulation enough to put 12v on fan blower, and it works. Thinking of removing dashboard cover under steering wheel and reseat any connectors. Heat does barely flow from vents when heater fan switch selected to low-med-high and no flow in off position, again the blower fan will not activated. Anyone see this? Got info that blower resistor pack only controls low-med speed, and fan should work on high regardless. I have no fan blower at all! All help greatly appreciated. Also, if anyone has an electrical schematic of that circuit, it would also be greatly appreciated. No fan since 12.22.2005 Thanks. Ger.