Hey Derek , here is how the wipers park position is suppose to work !
Windshield wiper motor park operation is controlled by the body control module (BCM) using an input from the park switch within the wiper motor assembly. The BCM monitors the windshield wiper motor park switch circuit to determine if the windshield wiper blades are at the bottom of the glass. The circuit will be pulled to ground by the wiper motor park switch while the windshield wiper motor is operating. 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. The BCM will park the wipers the next time the ignition is turned ON.
The wipers will not park when they are commanded ON and OFF with a scan tool. The BCM will park the wipers the next time the wiper switch is turned ON and OFF.
The BCM provides stall protection for the wiper motor by monitoring the park switch. If the park switch does not transition for 3 seconds while the wipers are operating, the BCM will assume that the wiper motor is stalled, and will de-energize the wiper relay until the wiper switch is cycled OFF and ON again.
Check for a voltage signal on the yellow wire at the wiper motor assembly , this is signal to the BCM ! If there is no signal you need to replace the windshield wiper motor assembly ? If there is a signal need to have Tech 2 scan tool hooked up to see if The BCM is the problem ! Relay #39 an #40 are the high an low wiper relays in the under hood fuse block ! Do you have a volt meter ,do you know how to do electrical testing ?
SOURCE: 1999 Chevy Venture, Windshield wipers stop in upright position
You will need to replace the wiper transmission.This is a common problem.
SOURCE: windshield wipers stuck upright when off
It is the fuse or the pulse board. Most likly the pulse board though
SOURCE: Wipers Blades stay UP when in the off position
As far as the wipers staying up this is a common problem with them. I have a 2002 that had the same problem. There is what they call call a park tab that tells the wipers where to park at when they are turned off. Technically the tab should be replaced however I got by with heating it up and bending it back into the shape it is suppose to be in. You have to remove the cowl below the windshield to get to the motor which is where it is located. I would say the skill level required for this repair is at least a 3 on a scale of 5 being most difficult
SOURCE: windshield wipers stuck upright when off
This is a commoon problem with what is called the "Park pawl stop". The tab is most likely bent and needs to be re-aligned, then the wipers need to be re-timed. This re-timing can be a little difficult, although the re-aligning of the tab is failry simple.
TechJK
SOURCE: Removing/replacing wiper motor in '93 Ford Ranger
You don't have to put the wipers in an upright position You can take the arms completely off. It's very easy to do, when you are looking at the base of the wiper arm, on the side closest to the windshield, at the base, there is a spring-loaded tab. Lift the arm on its hinge to where the arm is now pointing away from the windshield, pull the tab and the wiper arm will slide right off. Now you can access the linkage joints easily. Hope that helps!
The fuse is in location 50
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