Yukon what ? just a plain yukon ? 2WD or 4WD XL - Denali etc...
No pulse board . controlled by the BCM - body control module . Taking the vehicle to a qualified repair would be your best bet .
Windshield Wipers
The windshield wiper/washer switch signal circuits are inputs to the body control module (BCM) and the BCM controls wiper motor low speed operation, washer pump and high speed operation. The windshield wiper/washer switch is provided a low reference from the BCM and each of the switch signal circuits is supplied 12 volts through a resistor and monitored within the BCM. During LOW or INTERMITTENT operation the wiper switch low signal circuit is closed to the low reference circuit through a series of resistors within the switch assembly and the signal circuit voltage monitored by the BCM will depend on the switch contact location to the resistor assembly. During HIGH or WASH operation the high and wash switch signal circuits are closed directly to the low reference circuit within the switch assembly and nearly all the signal circuit voltage will be dropped across the BCM resistors. The BCM controls the wiper motor through the Wiper Relay and the Wiper High Relay. During any wiper motor function that uses low speed the BCM supplies the voltage to energize the Wiper Relay and battery voltage will be supplied from the Wiper Relay through the de-energized Wiper High Relay to the wiper motor low speed control circuit. During high speed wiper motor operation the Wiper Relay is energized as in low speed and the BCM provides a ground to energize the Wiper High Relay and the battery voltage is supplied to the wiper motor high speed control circuit. Wiper motor park operation is controlled by the BCM using an input from the park switch within the wiper motor assembly. The BCM supplies the park switch signal circuit 12 volts through a resistor then monitors the circuit. Whenever the wiper motor is out of the park position the park switch signal circuit is closed to ground and nearly all the signal circuit voltage will be dropped across the BCM resistor. When the wiper switch is turned to the OFF position while the wiper motor is somewhere in mid-cycle, the BCM will continue to operate the motor until the wipers reach the park position. If the ignition is turned OFF while the wipers are in mid-cycle, the wipers will stop immediately where they are and the BCM will park the wipers the next time the ignition is cycled ON.
SOURCE: wheres the circuit board for a windshield wiper
Hello jlwhelchel: My name is Roger and I will answer your question. Raise the hood locate the wiper motor. Remove the cover held on by three screws. Remove the cover. The cover is the module.
Should you need further help please just ask. Please rate the answer. This way I know the information was helpful. Thank You for using Fix Ya. Roger
SOURCE: wiper problem
Are you sure that it is the board?? I have a 1995 c1500 and it was doing same thing. Its mounted on rubber gromets and developed a bad ground. Take a wire with two big clips on both ends of it and clip one to the wiper motor. And other on the motor, on a bolt or something.
Testimonial: "Thanks for the free advice, I thought we had to pay for it? I wouldn't have any problem paying if I could ask till we figured out the problem."
SOURCE: wiper motor pulse board location
Wiper pulse board is on the motor assy, is it not working or are they stuck up on the windshield. If they are stuck up like some of the gm's do its a little tab that sticks up on the plate you can see it usually a small tap back inwards makes it function properly again so it makes contact on the transmission to lay back down.
SOURCE: Intermittant dead battery problem since
A technician will need to a parasitic drain test on the electrical system to determine where the battery drain is taking place. Sometimes the glovebox or vanity mirror lamps don't shut off and drain the battery.
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