I have a 2003 Yukon XL and the Front wipers want cut off. I took it to the dealer and they said I needed a Wiper Module Assembly.
parts and labor said, would be around 500.00 dollars
Can any body tell me how to fix it my self and to do it cheaper than this.
You can purchase this at any auto parts store for around $40. its a small black box located high and slightly to the driver side firewall. takes about 20 min.to replace(easy). I would sujest purchasing the part first,remove from package,and get familiar with the part as to how it appears to bolt on,also compare it with the one thats on the vehicle now.It will also have a wire harness that plugs into it.
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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 .
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.
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I recently had the same problem of the drivers side wiper not working. My boyfriend (a mechanic) took the windshield cowl off and looked to see what was going on. He originally thought that maybe something had slipped off. I'm going to describe what he found in layman's terms. When you take off the wiper blade arms from the wiper transmission assembly unit there are these silver colored nubs with grooves on them (one for each wiper). What he found was that on mine the grooves were stripped so that the wiper on the drivers side wouldn't catch and go across the windshield while the other wiper worked fine. What we think that happened is that I left the wipers on when I shut off the car and since we had a huge snowstorm the wiper transmission bound up and stripped the nubs when I turned on the vehicle the next day and let it warm up. I had tried for the past week to find a used replacement wiper transmissions assembly but was not successful. I just ordered the part from my local Hyundai dealer at a cost of $180. I will at least save on the labor, as my boyfriend can handle that part. If you try to get the part used, be careful. There was a product change mid-year. Prior to June 2004 (If I remember correctly) is one part number and Santa Fe's manufactured after that date is a different part. I needed the earlier Santa Fe part. You can look at the body panel between the front and back doors on the driver's side for the production date of your vehicle there is a metal decal with the vin, your color codes, and other information.
Fixed the wiper problem which was identical to Brad's by changing out the wiper module which is also called a pulse module or something of that nature. Pretty easy fix. You have to remove the grill that the wiper blades protrudes from in order to get to the motor (4 clips in front which can be removed by hand, remove radio antenna, a center push down retainer, two plastic end caps which pop off and then 1 star type screw on each end under the end caps). Getting the blades off seemed difficult. I used a small puller to pop them off after removing the nuts.
You can't buy this module at a regular parts store. I had to get it from the dealer so be prepared to spend $130 to $140 for the part or go to the salvage yard. Works great now.