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My wiper relay on my 1991 taurus wagon is constantly on and I want to run a toggle switch to cut power to my wipers what size fuse can I install with it? My wipers have a 8.5 amp circut breaker

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  • Cars & Trucks Master
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Maybe you need a new relay , the contacts inside the relay are stuck shut . Why you want to cause more prblems then are needed .(rigging something )

Posted on Dec 16, 2016

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1 Answer

2004 ford taurus wagon rear wiper will not work, but wiper fluid does


Your wiper and wiper fluid motors are different operation. The fluid one is a pump and the wiper motor only operates the wipers. Should check and see if you are getting power to the wiper motor if you are and the wiper does not work then you may need a new wiper motor.

Nov 27, 2014 | 2004 Ford Taurus

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Wiper motor will not stop running


The wiper motor takes its orders from the wiper switch which is probably faulty. It wont take long to ruin your windshield unless you live where it rains constantly. It you're sure it wont rain you can pull the fuse out until you can get it repaired. Probably wont be cheap as it's also probably on a multi function switch. If you have a friend that knows how to install a toggle switch to turn the power on and off to the wiper motor and money is a problem then that's the way I would go. Under $10 solution as opposed to what will probably several hundred $

Oct 24, 2013 | 2006 Cadillac CTS

1 Answer

Wiper wiring diagram


Those are accessory functions working off the ignition switch when in accessory position or run position of the key. Were you to check if the wiper and radio fuse had power to them in the run or accessory position as they should, likely they would not. Power from the switch goes to the fuse panel, powering the fuses and circuits that only work with key in on or acc., either a direct wire to the fuse panel or sometimes, fuses get power from an accessory relay that sends power to fuses, but relay has to get a signal from a good working switch before it powers the fuses.
What I'm trying to say, is the bad switch is probably the reason you have no wipers, radio, or mirrors.

Aug 31, 2013 | Cars & Trucks

1 Answer

Windshield wipers don't work on 91 taurus, fuse is ok


Maybe worth checking wiper switch or wiper motor.If you have a multi-meter it maybe worth checking power supply to switch and motor..hope it helps.....

Dec 30, 2012 | 1991 Ford Taurus

2 Answers

What fuse is the windshield wiper fuse in a 2001 ford taurus?


Check on Passenger Fuse Compartment the position 15 30AMP for Front Wiper Motor. Additionally, in the Fuse Box (underhood) check position 25 - Wiper Speed Relay and 29 - Wiper Park Relay (blank space) but could have some use.

Other details in the 2001 taurus owners manual.

May 31, 2011 | 2001 Ford Taurus

1 Answer

The windshield wipers on my 2007 dodge magnum will not turn off even if the car is not running unless I take fuse out, how can I possibly get the problem resolved


I switched the two relays under the power center cover, the intermittent relay and the power relay for the wipers and it fixed the problem. I guess the relay must have stuck to the closed side causing the wipers to have constant power if its not the relays then its the multi function switch replace relays first

Feb 24, 2011 | 2007 Dodge Magnum SRT8 Wagon

1 Answer

Could u tell me with fuses control the windshield wiper.


on the drivers side under the dash on the firewall is a fuse panel. #23 5amp is the fuse for the wiper

wiper system. if you have a taurus station wagon #19 15amp is for the rear wiper.

under the hood on the drivers side front by the battery is a power distribution panel #28

is the wiper relay. good luck!

Feb 16, 2011 | 1998 Ford Taurus

1 Answer

Wipers would not park, customer forced down wiper arm and broke off arm. Now no electric to wipers.


Before 1995 Ford interval wiper systems mainly consisted of a switch, the motor and the interval governor (also called the wiper control module or 'WCM'). The basic wiper systems just parked the wipers at the end of their travel at the base of the windshield and involved just one park switch.

The more complex systems not only stopped the wipers at the base of the windshield, but would actually recess them below the windshield to park them. This involved using two park switches to turn the wiper motor in a reverse direction. These were installed on the Crown Victoria, Grand Marquis, Town Car, Taurus and Sable.

The wiper switch (named 'Multi-Function Switch' on most models) had a common return or ground circuit and two input or signal circuits to the WCM. Basically, the switch was two modified potentiometers that varied the resistance to ground for the two signal circuits. When the wiper switch was placed in the low or high position, the WCM looked at only one of the circuits- the 'mode input' -and controlled the wiper motor accordingly. If the wiper switch was placed in any of the interval positions, the mode input told the WCM that the switch was in an interval position. The WCM then looked at the second input - the 'delay input' - and used it to determine the amount of delay between wipes.

1) To run the wipers on low or high speed, the WCM provided constant power to the wiper motor on the proper circuit to provide the requested speed. Dual park switch motors
1.1 The first park switch operated basically in the same way as the single switch systems.
1.2 The second park switch worked in the opposite manner- when the wipers were off the park position, the second switch provided a ground for the wiper motor. Power and ground were now provided by the park switches.
1.3 When the wipers needed to park, the polarity of the switches changed, and thus provided reversed voltage to drive the motor in the opposite direction.

2) To run the interval wipers, the WCM applied voltage to the wiper motor only momentarily to get the wipers off the parked position.
3) The electro-mechanical park switch made a circuit between the power feed in and the output to the WCM. Power was provided from the park switch through the WCM and back to the wiper motor.
4) When the wipers reached the park position, the park switch made a circuit between the ground and the output to the WCM, and the motor stopped running. The wiper motor and the wiper switch have remained much the same as the single park switch motors of the past.

The main difference is that the switch has become an input to the GEM instead of the WCM.
1) When the wiper switch is placed in the low or high position, the Run-Park relay is grounded by the GEM to provide constant voltage to the High-Low relay, which then provides voltage to the proper circuit of the wiper motor.
2) High-Low relay is in the low speed position unless grounded by the GEM.
3) The park switch not only feeds the Run-Park relay but is now also an input to the GEM. This tells the GEM when the wipers are in the parked position so it can de-energize the Run-Park relay.
4) When any of the interval positions are selected, the Run-Park relay is momentarily grounded to get the wipers off the parked position
5) The park switch then provides voltage to the other set of contacts in the Run-Park relay.
6) When the GEM de-energizes the Run- Park relay, voltage is still provided from the park switch to the High-Low relay and the wipers complete the stroke.

Click over diagrams for zoom:

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Hope this helps.

Feb 08, 2011 | 1993 Mercury Grand Marquis

2 Answers

My wipers quit on my 92gmc sierra, I've replaced the motor and the switch. What would it take to hook them up to a toggle switch??


Hello: Have you tried the circuit board that goes on the front of the motor, That was a high failure item. I had a '92 (189000 mi) and had to replace 3 times.

Feb 01, 2011 | 1992 GMC Sierra K1500

1 Answer

Wiper blades stopped working on 2000 Taurus


  • Central junction box (CJB) Fuse 211 (15A), Fuse 215 (30A)
  • Multifunction switch
  • Wiper run/park relay
  • Wiper high/low relay
  • Windshield wiper motor
  • Circuitry
  • Battery junction box (BJB)
  • CJB
  • Generic electronic module (GEM)
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Apr 09, 2009 | 2000 Ford Taurus

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