Question about 1981 Chevrolet Corvette

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1981 Chevy El Camino Wiper motor

My wiper motor has stopped working, of the 3 wires that operate the motor only 1 recieves any power when the switch is activated. I have replaced the motor and switch and still have the same issue. All fuses are good and you can hear the motor click when turned on but that is all it does, if left on for more than a few seconds the electronics in the motor start to smoke.

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  • Master
  • 631 Answers

I would say you have a faulty motor.

Posted on Jul 28, 2009

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2003 Pontiac Montana wipers not working how to fix


First you need a wiring diagram, free at http://www.bbbind.com/free_tsb.html Then you need a DVOM - digital volt ohm meter to test the circuit . Then if your not familiar with automotive electrical systems testing ,go on youtube an check out Electric Testing Techniques You Need to Know Also having a factory diagnostic trouble shooting chart would also be usefull . You could just start replacing parts , you mite get lucky . The wiper motor is a high fail part , so is the switch ..You could find the fuse is blown ! But fuse's don't usually blow without a reason . Short to ground , low resistance . ( high current flow) Also knowing how they work and what all is involved in making them work.
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Windshield wiper motor module
• Windshield wiper motor
• Windshield washer pump motor
• FRT/WPR/WSHR 25A fuse

Wiper/Washer System Operation
The windshield wiper motor module is part of the windshield wiper motor cover and controls wiper motor operation. The windshield wiper motor is a 2 speed motor and is operated at low speed in all modes except HIGH. The accessory voltage supply circuit to the windshield wiper motor assembly is used to operate the wiper motor in all of the low speed modes. The accessory voltage supply circuit to the windshield wiper/washer switch is used to supply the windshield wiper switch signal circuits and the wiper motor high speed circuit.
When the wiper/washer switch is in the LOW position voltage is supplied through a 24K ohm resistor within the switch to the windshield wiper switch signal 2 circuit, and accessory voltage is supplied to the windshield wiper switch signal 1 circuit. The reduced voltage from the wiper switch signal 2 circuit and accessory voltage from the wiper switch signal 1 circuit causes the wiper motor module to close the wiper motor accessory voltage supply circuit to the wiper motor low speed terminal.
Windshield wiper/washer system MIST operation is identical to LOW operation except that the MIST switch is a press and release type. When the wiper switch is moved to the MIST position and released, low speed wiper motor operation is started and will continue until 1 cycle is complete. If the wiper switch is moved to the MIST position and held, the windshield wiper motor will operate in the LOW mode until the switch is released.

Don't the wipers work in any mode ?
1
Did you review the Wiper/Washer System description and operation and perform the necessary inspections?
YES - Go to Step 2
NO - Go to Symptoms - Wiper/Washer Systems
2
Turn ON the ignition , with the engine OFF.
Operate the windshield wiper/washer switch through all the switch positions.
Does the windshield wiper/washer system operate normally?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Turn OFF the ignition.
Disconnect the harness connector of the windshield wiper motor.
Turn the ignition ON, with the engine OFF.
Connect a test lamp from the accessory voltage circuit of the windshield wiper motor to a good ground.
Does the test lamp illuminate?
YES - Go to Step 4
NO - Go to Step 13
4
Connect a test lamp from the accessory voltage circuit to the ground circuit of the windshield wiper motor.
Does the test lamp illuminate?
YES - Go to Step 5
NO - Go to Step 14
5
Connect a test lamp from the signal 2 circuit of the windshield wiper switch to a good ground.
Press the windshield washer switch.
Does the test lamp illuminate?
YES - Go to Step 11
NO - Go to Step 6
Let me know if you make it this far and i will send rest of diagnostic's

Nov 25, 2016 | 2003 Pontiac Montana

1 Answer

Where to find the window wiper motor? How to know if it is bad and if replacing it will fix my wiper fluid problem in my 85 el camino. wipers work fine but no spray does not. maybe fuse?


If I remember correctly, your wiper motor is mounted to the firewall, likely on the drivers side. You can locate it easily by turning the key on and turning on the wipers. Just listen to the motor and follow the sound. To see what's going on with the washer portion, you need to carefully remove the plastic cover.
If you have a circuit board inside, be careful not to break it. You need to look at the pump and pump actuator to see what's working or not. (check for voltage and mechanical operation)
To fix it, you can sometimes get a pump rebuild kit but if the electrical part isn't functioning, unless you are trying to keep the car absolutely stock, there are aftermarket external pumps you can add on, using a push button on the dash. It's an easy install and far cheaper than replacing the entire wiper motor assembly. Another option is to go to a scrapyard and find a fluid reservoir from a Chrysler or any other car that uses a pump on the reservoir. Find one that fits reasonably well in your engine compartment and just attach the hoses to your system. Then all you need is a wire from a power source to the push button, then to the pump, and a ground for the pump housing.

Dec 03, 2010 | 1985 Chevrolet El Camino

3 Answers

Front wipers will not operate. checked fuse and relay look ok. back wiper works


Here are a few other things to check beside the fuse and relay:

Check Wiper Motor - the wiper motor is the driving force of the windshield wiper. Feel the motor and listen to a humming sound. If there is no humming, the motor is the problem. Check if the motor is working properly and see to it that its electrical connections are made properly. If you find that the motor is dead and beyond repair, get it replaced immediately.

Check For Break in Connecting Wires - the connecting wires of the motor sometimes go loose and that may cause the windshield wipers to stop working. Also check the battery plug connection which the motor has. Connecting the loose wires properly or fixing/replacing the plug might solve your problem.

Check Wiper Switch - another wiper assembly part that can malfunction is the wiper switch itself. Check for switch malfunction and if you find that is indeed the problem, get it replaced from a mechanic.

Check for Bent Wiper Arms - bent wiper arms can cause the operation of the wipers to be hampered. If the wiper arms are bent beyond repair, get them replaced immediately.

Nov 25, 2010 | 2003 Isuzu Ascender

1 Answer

Windshild wipers stop working


CHECK FUSE IF FUSE GOOD.HOOK A JUMPER WIRE TO GROUND AND GROUND WIPER MOTOR.TURN WIPER SWITCH ON IF WIPERS WORKS YOU HAVE TO FIX GROUND CONNECTION. IF WIPER STILL DONT WORK.REMOVE THE COWL COVER.TURN WIPER SWITCH ON TO SEE IF POWER GOING TO WIPER MOTOR IF YES.REMOVE WIPER MOTOR HOTWIRE IT.IF WIPER MOTOR DONT WORK REPLACE IT.IF WIPER MOTOR DO WORK CHECK FOR BINDING OR DAMAGE LINKAGES.IF POWER NOT GOING TO WIPER MOTOR AND FUSE GOOD.WIPER SWITCH FAULTY OR IT HAS BROKEN WIRE FROM SWITCH TO WIPER MOTOR.

Oct 04, 2010 | 2002 Toyota Avalon

3 Answers

Windshield wipers stopped working not fuse is there a relay and where is it


with the key on and the wiper switch in the low or high position tap the wiper motor with a screwdriver handle. If it starts working replace the wiper motor.

Sep 26, 2010 | 2002 Buick Rendezvous

1 Answer

Need to get a programmer dont know where its at


  • Windshield Wipers Continue to Run When Turn Signal and Windshield Wiper Switch Are Turned OFF
  • Damaged turn signal and windshield wiper switch .
  • Damaged windshield wiper motor .
  • Damaged windshield wiper control module.
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Pin Number Circuit Circuit Function 1 57 (BK) Wiper Motor Ground (Park) 2 28 (BK/PK) Wiper Module to Wiper Motor (Park Switch) 3 65 (DG) Wiper Motor Power (Park Feed) 4 61 (Y/R) Wiper Motor Common (RUN) 5 56 (DB/O) Wiper Motor LO 6 58 (W) Wiper Motor HI
Windshield Wiper System The windshield wiper system consists of :
  • Windshield wiper motor (17508) (F-type).
  • Washer system.
  • Windshield wiper control module.
  • Turn signal and windshield wiper switch (13K359).
The windshield wiper control module is:
  • Located at the instrument panel fuse panel.
The windshield wiper motor is:
  • Attached to the cowl top extension (021A36) .
  • Connected to windshield wiper mounting arm and pivot shaft (17566) .
The turn signal and windshield wiper switch features a:
  • Rotary wiper switch.
  • Push type washer actuator.
OFF/Low/High Speed
  • Has a two-speed, permanent magnet, three brush electric windshield wiper motor .
  • The windshield wiper motor has a brush rigging that permits selection of low or high speed.
  • When the turn signal and windshield wiper switch is in the LO position, the common brush and the blue/orange wire brush are used, and the windshield wiper motor operates at low speed.
  • When the turn signal and windshield wiper switch is in the HI position, the common brush and the white wire brush are used.
  • In HI position, electric current will bypass a portion of the armature winding causing the windshield wiper motor to operate faster.
  • When the turn signal and windshield wiper switch is moved to the OFF position, the windshield wiper motor will continue at low speed until the park switch outer contacts open.
  • When the park switch contacts open, the windshield wiper motor stops in the park position.
Interval
When the turn signal and windshield wiper switch is in the interval position:
  • The wipers make single wipes separated by pauses.
  • The rotary switch is on the end of turn signal and windshield wiper switch .
  • The length of the pause can be set from approximately 1 to 17 seconds.
  • Length of pause decreases as the rotary switch is rotated away from off.
  • Length of pause increases as the rotary switch is rotated toward off.
While in the interval wiper mode:
  • It is normal to hear a slight click at the beginning of each on/pause cycle. NOTE: When using interval wipers, the first wipe may not occur until after a pause of up to 17 seconds.

May 27, 2009 | 1994 Ford Mustang

4 Answers

Windshield Wiper Not Working Properly


Well sure enough all I had to do was replace the circuit board...wish I had done this a couple months ago...it was so easy to do and will now be much easier to drive with being able to see clearly again....

Dec 22, 2008 | 1999 Chevrolet Suburban

1 Answer

Giovanni


Hey scorpio13206,

Thanks for asking me about your wiper problem. I've got to let you know up front that this could be a multi-step process (perform a test, the results determine the next step). I'll also be asking some questions to get a better grip on where the problem may be. I'll explain what I'm asking
so you can better help me help you. Just comment me back with your findings.

I know people have jobs and lives. I don't expect an immediate response so don't worry about it. It's important that you take your time, be safe.

If you have something you can use to test voltage (test light or volt meter), get it out. You will also need A length of wire, preferably with clips on the ends (just to keep your hands free) to supply voltage for some of the tests.

Be patient. You are my eyes and ears. From the way you described the problem, you won't have a any trouble, we're going to do great. Let's get started.

Questions:
  • The pulled wire, how was it connected? (just curious)
  • When you grounded the wire from the wiper motor, did it spark? Was the ignition and/or the wiper switch on at the time?
  • Is the delay after market?
  • Were the fuses checked again after the wire was grounded? (I figured you wouldn't pull a wire if nothing was wrong, you would've checked fuses before pulling wires, so....)
  • Wiper motor: How many wires come out of it? (some motors have multiple speeds wired into them (two to four wires), others are controlled by an electric pulse (one or two), some have after market delays wired in)
  • Did the pulled wire look like it was added or was it original from manufacturer?
Tests:
  • After you have confirmed the fuses are ok again. On the wire that was pulled, test it for voltage with the ignition and wiper switch on.
  • Need to know the wiring config before I put any test power to the motor.
Get back to me when you can.
Mike

Oct 01, 2008 | 1983 Chevrolet El Camino

1 Answer

Giovanni


I have a 1983 Royal Knight SS. Had the same problem. Had my wiper motor and washer pump replaced. works like a dream now. replaced my original combination turn signal wiper switch on steering column and now have good working intermittent wipers. It is great to see driving in the rain now. Jackson  in ATL

Oct 01, 2008 | 1983 Chevrolet El Camino

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