Question about 2003 Chevrolet Silverado 2500HD

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Wipers fail intermittently

Wipers fail to work intermittently. Have replaced pulse board and relay. No change. No wiper/washer function at all and then starts randomly working again with no apparent problem.

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On my silverado 2003 the intermittant wiper/washer turned out to be a loose fitting fuse. The fuse is located on the outside face of the dash, you need to open the drivers door to remove the cover to acess the fuses. locate the fuse on the diagram, and wiggle it with your finger while the unit is malfunctioning to see it that is the problem. I bent the fuse blades slightly apart before reinserting the fuse and it hasn't been a problem since

Posted on Jan 29, 2009

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I own the same year and model truck, but haven't noticed that issue. I did own an '88 k2500 and had that problem. I know from my job experience that those particular trucks had an issue with the wiper motor ground path being faulty. You could check to make sure that the ground wire in the plug is actually "grounding", or the quick fix at least used to be, run a separate ground wire from the motor assembly to the body. There was also an issue with the control board on the motor, which I gather you've replaced. As I've mentioned I haven't encountered that issue with the later model trucks yet. Aside from the ground issue, it may be a faulty multifunction switch (turn signal lever/ wiper switch/ hazard switch assembly) I hope this helps.

Posted on Nov 13, 2008

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Try to any electricl loose contact electricl wiring circutry. tha may be.

Posted on Nov 12, 2008

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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 http://www.bbbind.com/free_tsb.html 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

2
Inspect the WIPERS fuse A9 for an open.
Is the fuse open?
--
YES - Go to Step 3
NO - Go to Step 4

3
Replace the WIPERS fuse.
Is the replacement complete?
--
Go to Wiper/Washer System Check
--

4
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

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

6
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

7
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

8
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

9
Repair the open or poor connection in CKT 143.
Is the repair complete?
--
Go to Wiper/Washer System Check
--

10
Replace the the Accessory Relay.
Is the replacement complete?
--
Go to Wiper/Washer System Check
--

11
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
--

12
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

2001 firebird wipers stop in up position already replaced the pulse board


Usually the park switch inside the wiper motor is the fault.

Jun 17, 2013 | Cars & Trucks

2 Answers

Can't find wiper relay on 94 ranger


Wipers do not require a relay. If your wipers are not functioning and a fuse is blown, the washer will not work either. If the washer works, check the wiper switch or the wiper motor, but wiper motors are normally very reliable.

May 17, 2011 | 1994 Ford Ranger Supercab

1 Answer

During a recent snowstorm, the weight of the snow was apparently too much for the rear wiper. It stopped mid-stream and is stuck. Simultaneously, the intermittent function of the front wipers also quit. ...


Check fuse no. 11 (10A) in the driver's under dash fuse/relay box. I suspect it is blown. It provides power for the rear wiper, both washers, and the intermittent wiper function for front and rear. It probably blew when your rear wiper got stuck.

Jan 31, 2011 | 2003 Honda Odyssey

2 Answers

My windsheld wipers wont work...we put a new motor on it but it still doesnt work


maybe it's not problem with motor maybe is switch of wipers,or cabels that conect to wipers motor,or its fuse.

Jan 26, 2011 | 2000 Buick Park Avenue

2 Answers

Windsheld wipers work intermittently. turn


the wiper motor seems to be defective, test that first

Jul 04, 2010 | 1998 GMC Safari

1 Answer

I have an intermittent problem with my wipers. They don't work one day and the next they do. Could this be pulse board problem or with the motor?


more than likely the pulse board loose at the wire connector. try wiggling the connector with wipers on (keeping hands away from wipers) then try tapping the motor with a small hammer.

Feb 11, 2010 | 1999 Chevrolet Tahoe

1 Answer

Windshield wipers work intermittent


Typical problem is the pulse board on the wiper motor fails on this year of truck. I have had both a 97 and 98 K1500 and had to replace on both. Sometimes the wipers would work, sometimes they would quit when I was driving. Part is less than $50 at auto parts stores. Follow the instructions included. Requires removing 4-5 torx (star) head screws. Takes less than 10 minutes.

Nov 24, 2009 | 1998 Chevrolet K1500

1 Answer

Wipers won't stop wiping.


Sounds like your intermittent wiper circuit is defective. Normally the intermittent feature is engaged by one of the functions on the multi-function switch (usually on the steering column). The circuit of the intermittent wiper periodically activates a relay that closes across the "Wiper On" switch. Your intermittent wiper circuit is likely defective and holding its relay closed (or the relay is stuck closed), thereby keeping the wipers on. Note: The wiper motor has an internal switch that opens when the wipers are in the park position and that is designerd to stop the wipers in the park position. When you turn on the wipers (or the intermittent relay is closed), the motor's internal switch is shunted such that the wiper does not stop at the park point of the cycle.

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1 Answer

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possibly a relay the one for intermittent wipers is #16 front under dash relay panel

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