Question about 1998 Chevrolet Astro

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Winhshield wipers do not work

The front window wipers will not work the washer will not work either i replaced the pulse module board. no help. is it possible i have a tilt steering wheel when i lifted the wheel up i think that is when i think they stopped working could that loosen a wire?

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Cadillac Deville 99

Wiper/Washer System (Pulse) Schematics (w/o CE1)
Wiper/Washer System (Pulse) Schematics (w/CE1)

Which one does yours have ?

The switch could be bad or the windshield wiper / washer module . Do you own a DVOM - digital volt ohm meter ? Do you know how to do automotive electrical trouble shooting ? There are a few good videos on youtube on basic electrical trouble shooting an how to read wiring diagrams . Go to for free wiring diagrams . Check B+ voltage at the switch (in an out ) at the different speeds .Check for B+ voltage at the wiper washer module , it's part of the wiper motor .
The windshield wiper/washer system consists of a permanent-magnet depressed-park wiper motor assembly, a wiper transmission assembly, wiper arm and blade assemblies, a washer pump mounted on a washer solvent container, and a wiper/washer switch assembly.
The wiper/washer system is a pulse (delay) type. Pulse timing and demand wash functions are controlled electronically. Wiper/Washer System Description (Rainsense)
The windshield wiper/washer system consists of a Rainsense module, a permanent-magnet, depressed-park wiper motor assembly, a wiper transmission, wiper arm and blade assemblies, a washer pump mounted on a washer solvent reservoir, and a wiper/washer switch assembly.
The wiper/washer system is a rain sensing type. Rainsense functions are controlled electronically. 1
Was the Wiper/Washer System Check performed?
Go to Step 2
Go to Wiper/Washer System Check

Inspect the WIPERS fuse A9 for an open.
Is the fuse open?
YES - Go to Step 3
NO - Go to Step 4

Replace the WIPERS fuse.
Is the replacement complete?
Go to Wiper/Washer System Check

Disconnect the wiper/washer switch connector C202.
Turn ignition switch ON.
Connect a test light from connector C202, terminal E5 to ground.
Is the test light on?
YES - Go to Step 16
NO - Go to Step 5

Connect a test light from Accessory Relay, terminal A1, to ground.
Is the test light on?
YES - Go to Step 6
NO - Go to Step 11

Connect a test light from Accessory Relay, terminal A3, to ground.
Is the test light on?
YES - Go to Step 7
NO - Go to Step 12

Connect a test light from Accessory Relay, terminal B1 to terminal A3.
Is the test light on?
YES - Go to Step 8
NO - Go to Step 15

Inspect CKT 143 for an open or poor connection between connector C202 and the Accessory Relay.
Was an open or poor connection found?
YES - Go to Step 9
NO - Go to Step 10

Repair the open or poor connection in CKT 143.
Is the repair complete?
Go to Wiper/Washer System Check

Replace the the Accessory Relay.
Is the replacement complete?
Go to Wiper/Washer System Check

Repair the open in CKT 1040 or the power feed circuit to the WIPERS fuse.
Is the repair complete?
Go to Wiper/Washer System Check

Inspect the ACC fuse C13 for an open.

let me know if you make it this far an then I will send the rest of testing procedures !

Mar 09, 2016 | Cadillac DeVille Cars & Trucks

1 Answer

Olds intrigue recalls

Replace wiper switch or bring it to your dealer.

May 10, 2014 | 1998 Oldsmobile Intrigue

1 Answer

1984 buick lesaber wipers stoped pulsing

Usually when the delay function fails, the problem is in the circuit board module on the wiper motor.
You would need to check the circuit with a meter, the module may be available without buying a wiper motor.

Feb 08, 2013 | 1984 Buick LeSabre

1 Answer

2002 Olds Intrigue ...sometimes the wipers start by themselves with the switch in the off position. The only way to shut them off is to push the washer button.(sometimes takes 3 or 4 tries).-do you think...

usually its both the switch and the pulse usually go bad at the same time but u can start with wiper motor with pulse board try rockauto.comtheyre best for parts

Sep 14, 2011 | Oldsmobile Intrigue Cars & Trucks

1 Answer

I have a 96 jeep grand cherokee laredo my rear wiper doesnt work my front wiper has no pulse setting all 4 power windows no longer work im confused on were to start was told to replace body control module...

some times the ground wire going from the body to the door ( located in the rubber boot ) breaks. so you have to pull back the boot and try to find the black ground wire

May 30, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Delay wipers only work on high speed on 2000 chevy silverdo 1500 truck no delay

Hello, my name is Ben and I can help you with this problem. This is a very common problem with Chevy. You need what is known in most vehicles as a "pulse board". The pulse board is located inside the wiper motor control module. On many vehicles the pulse board is replaceable, unfortunately on your Silverado you must replace the entire Wiper Motor Control Module which is bolted onto the top of the wiper motor. To get to the wiper motor, first remove those little nut covers on the big end of the windshield wiper arms, if you slip a small screwdriver or your fingernail they just pop off. Now unbolt the windsheild wiper arms, before removing the wiper arms, mark their location on the windsheild with a grease pencil or magic marker. The arms are hard to remove, you need to kinda wiggle and pull at the same time, now that long plastic cowl needs to come off, those clips at the front edge just slide forward, then at each end lift up that rubber flap and remove those TORX screws. Remove the cowl and set it somewhere SAFE, it's easy to break. You will now see the control module mounted on the wiper motor, unplug the electrical connections and remove the TORX screws holding it to the motor. Assembly is the reverse of dis-assembly. If you have any trouble or questions, feel free to ask, Ben.

Nov 13, 2010 | 2000 Chevrolet Silverado

2 Answers

1995 gmc sierra 1500 windshield wipers work on high sometimes works on regular or mist settings

It is the pulse module inside the wiper motor. It has bad solder joints were the wiring connector is soldered to the pused module board. You can either replace the module or just touch up the solder joints yourself.


Nov 04, 2010 | 1995 GMC Sierra

2 Answers

Wipers only work on high speed. washer pump work too. I have no low speed or delay for wipers. Is this a switch problem or is there a relay modual under the hood that could be bad

Hello, this is a very common problem for Chevrolet. Your wiper motor control module is bad. It's mounted directly onto the wiper motor. On some models you can replace the "pulse board" inside the control module. If not you need to replace the entire wiper motor control module. It depends on your level of skill and parts availability.

Feb 02, 2010 | 1999 Chevrolet Express

1 Answer

Windshield wipers only run on high

Hi, this is a common GM problem. I'm assuming you mean the front wipers. The wiper motor control module is most likely defective. The module is mounted directly to the wiper motor. You can probe the plug going into the motor with a digital multi-meter while operating the switch to verify the switch is good. On some of these you can replace the "pulse board" inside the control module, on some you must replace the module. Or, I have located an entire wiper motor assembly for your vehicle on EBAY for $80.40. Of course if you go the EBAY route check with the seller for fitment and to be sure the module is on the motor he is selling. It would be easier to just replace the module. Good luck and if you need anymore info, just leave a comment.

Jan 24, 2010 | 1999 Chevrolet Venture

9 Answers

Windshield wipers will not turn off - 2003 Chevrolet Silverado

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.

Mar 14, 2009 | 2003 Chevrolet Silverado 1500

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