Timing Venture wipers

Look online for the wiper module for this model. This is a common issue to include operation without the switch being activated. Everything is controlled by the module which screws directly on the front of the wiper motor by 3 torx head screws and measures about 4" x 4" and is very easy to install. The motor should be on the firewall. The modules run anywhere between $35 and 65. Let me know if you need anything else.

you need to change the wiper postion part of the wiper motor..it is located ontop of the wiper motor where the wiper arms connect to

Check that you have connected the wiper motor correctly - ensure that you havent inadvertently got the polarity wrong!.
Leave the wiper arms off until you get the motor to run and park using the normal wiper on/off switch.
The motor 'park' control switching is normally an integral part of the motor drive gear and is not adjustable.
During your testing, affix a temporary indicator pointer to the end of a wiper arm drive shaft (use masking tape or similar) to prevent damage to motor or levers.

There is a wiper pulse board on the wiper motor itself that is failing, this can be replaced without replacing the entire unit.

need to change your wiper motor.

It sounds like the switch went out. I have seen a lot of GM products have this same problem.

There should be a circuit breaker which shuts down the wipers when they are frozen. Sounds like the breaker didn't do its job and the wiper motor fried. My guess is it needs replacing.

You will need to replace the wiper transmission.This is a common problem.

Check if the spindles are rotating if they are the splines are worn in the wiper blade assembly. Try tietening the wipers on the splines

The problem is in the wiper motor assembly. Did you ever notice that when you switch the wipers off they always go back to the home position? This is due to a switch that keeps the wiper motor operating until the wipers are parked. In many older GM vehicles this is accomplished with a leaf type switch which opens when the wipers are in the correct position. when the dash switch is turned on this switched is bypassed keeping them on-when the wipers are turned off the motor continues to operate until this connection is broken.

Inside the wiper motor housing there is a nylon gear that drives a cam that cycles the leaf switch-most likely the gear has become damaged so it no longer drives the leaf switch allowing the switch to remain closed. A cheap fix is to disassemble the motor unit and piece of tape between the contacts. Although the wiper will not park properly they once again can be controlled by the dashboard switch.

In later vehicles the wiper position is located with an electronic sensor with a small PB board - the repair of this gizmo is beyond the scope of most shade tree mecahnics - so the solution is to replace the entire wiper motor assembly - unfortuneatly.