Question about 1992 Buick LeSabre

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I have a 1992 Buick Lesabre Limited. The windshield wipers work on high and low but not intermitent also there is no power to the windshield washer pump on the resevoir.

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Check the relays for this system, or sounds to be the switch needs to be replaced.

Posted on Jan 01, 2011

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This is the switch itself. Replace the switch and all will be well. If you need instructions, let me know. Happy new year.

Posted on Jan 01, 2011

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1 Answer

How do I find out if the wipers on my 2006 H3 Hummeris on a relay?


The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper micro relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIP/WASH 10A fuse
• WIPER 25A fuse

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper micro relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay switched output to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.

Low Speed Operation
When the wiper switch is in the Low position, voltage is supplied through an internal resistor to the signal circuit. The body control module (BCM) monitors the windshield wiper switch signal 1 circuit, and energizes the wiper micro relay which will operate the windshield wiper motor. The wiper motor will operate at low speed, since the wiper 2 relay is de-energized. Low speed can also be commanded with a scan tool, by commanding Wiper Relay Cmd. ON and OFF. Refer to Scan Tool Output Controls .
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper micro relay and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper micro relay switched output to the switched input of the wiper 2 relay through its contacts and out the switched output of the wiper 2 relay to the high speed circuit of the windshield wiper motor. The windshield wiper motor will operate at high speed. During high speed wiper motor operation the wiper switch signal circuit is at the low speed signal voltage, and the body control module (BCM) supplies redundant voltage to the wiper relay via the wiper diode.

This info is out of hummer factory service manual !

Dec 10, 2016 | 2006 Hummer H3

1 Answer

What could be my problem for my windshield wipers to suddenly start and stop working?


It could be the screws are loose (at the bottom end of the wipers)
There may be a rubber cap you will need to access the screws. (Also worth checking if the wiper motor is working when wipers are not)

Other possibility, the wiper motor fuse is loose with intermittent connection - locate the fuse box and take out all fuses, inspect them for damage/burn marks and insert them firmly back.

Hope this helps

Sep 29, 2016 | 2003 Buick LeSabre

1 Answer

Windshield wipers wont work on my 1992 buick lesabre limited. Replaced fuse and wiper motor. How do I diagnose what is wrong?


Hi John, I would be checking the switch,does it feel good when operating it? Being old and made of plastic they can fail.

Feb 27, 2015 | 1992 Buick LeSabre

1 Answer

How do you change the window scrapers on a 1989 buick lesabre limited?


What are window scrapers... If you mean windshield wipers , go to your local auto parts store and buy new ones...the packaging has instructions printed on it , on how to change the wiper blades

Sep 21, 2013 | 1989 Buick LeSabre

1 Answer

Windshield wipers don't work.Fuse is good and motor is good.No power to motor. The tag to tell what relay is for what is missing. Was wondering if the wipers had a relay and which one it is.


Hello Firerocker.
If your washer motor works there is power in the circuit and ground.
The wiper motor housing needs to be grounded.
If neither one works check for power on the green wire leading into the motor. If nothing there your switch may be bad.
If there is power to the green wire then check for power on the gray wire on low wiper speed and power on purple on high speed.
Here is a diagram if you need it.

http://i28.photobucket.com/albums/c227/Kiltylake/Wiper.gif

Hope this gets your wipers going again.

KL


Feb 12, 2010 | 1992 Buick LeSabre

2 Answers

Windshield wipers working on low speed only and windshield washer not working intermitant wipe is working rear wiper/washer is working


You may want to check the switch of the wiper if there are loose connections or it may need cleaning. If that checks out ok, you may want to proceed to check the relay if it is faulty or the connection is loose. Otherwise inspect the wiper motor and the assembly for physical signs of damages.

Oct 09, 2009 | 1992 Jeep Cherokee Sport

1 Answer

Windshield wipers move only inches


The arm is probubly loose on the motor...I had the same problem...open the vent area below the windshield under the hood ...remove the drivers side wiper arm and see if the motor is completely turning...if so check the connector arm is on and tight..the pivot ball may have worn oblong...or it just loosened up...pretty easy fix

Jun 08, 2009 | 1992 Buick LeSabre

1 Answer

Intermitent wipers do not work


try taking a wire and ground the motor housing(alot of times they lose their ground which affects the intermitent wiper operation

Oct 16, 2008 | 2001 Buick LeSabre

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