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I have a 3rd generation 4 runner. Rear squirter and wiper will not function. All fuses are good. No sound from washer bottle pump when activated.

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Problem might be in the switch.

Posted on May 02, 2015

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Bad back door ECU. Yes, the doors have computers.

Posted on May 02, 2015

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1 Answer

Which fuse controls front windshield wiper pump


Do the wipers work ? Fuse for wipers is same as washer pump .
Principles of Operation
The wiper motors receive inputs from the following:
  • Multi-function switch
  • Powertrain control module (PCM)
  • Ignition switch
  • Smart junction box (SJB)
The following components are integrated in the wiper motors:
  • Windshield wiper motor module
  • High/low speed relay
  • Run/park relay
  • Washer pump relay
  • Park sense (Hall-effect sensor)
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multi-function switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
  • The washer pump is inoperative
  • Circuitry
  • Washer pump
  • Multi-function switch
  • Windshield wiper motor
  • Rear window wiper motor
  • Go To Pinpoint Test I .
Does your expedition have programmable/recall memory option for seats an mirrors ?
Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
On the Expedition Limited, the power fold exterior mirror option is controlled by the DSM. Before running a self-test or retrieving codes, the power fold switch must be inactive for at least 30 seconds.
This is a complex vehicle , electronics , control modules an serial data communication networks. You mite be better off taking it to the dealer or some other repair shop . There could be DTC'S - diagnostic trouble codes stored in the SJB - body control module !
B1667 Mirror Driver Up/Down Motor Stalled Go To Pinpoint Test D . B1668 Mirror Driver Right/Left Motor Stalled Go To Pinpoint Test D . B1669 Mirror Passenger Up/Down Motor Stalled Go To Pinpoint Test D . B1670 Mirror Passenger Right/Left Motor Stalled Go To Pinpoint Test D . B1735 Mirror Driver Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1739 Mirror Driver Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B1743 Mirror Passenger Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1747 Mirror Passenger Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B2312 Mirror Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2314 Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2316 Mirror Passenger Vertical Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2318 Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2320 Mirror Driver Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2322 Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . Normal Operation During normal operation, when the front wiper wash is selected, the windshield wiper motor provides power to the washer pump through circuit CRW14 (BU/WH) and ground is provided to the washer pump through circuit CRW12 (GY/OG) and the rear wiper motor. If rear wiper wash is selected, the rear wiper motor provides power to the washer pump through circuit CRW12 (GY/OG) and ground is provided to the washer pump through circuit CRW14 (BU/WH) and the windshield wiper motor.
    Possible Causes
  • Multi-function switch
  • Open in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN), CRW20 (GY/YE), SBB49 (RD) or GD149 (BK/GY)
  • Short to ground in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN) or CRW20 (GY/YE)
  • Washer pump
  • Windshield wiper motor
  • Rear wiper motor
    This is

Feb 02, 2016 | 2010 Ford Expedition

2 Answers

Why no wiper fluid to rear wiper 2002 ford explorer


the washer pump for the rear window is located in the washer bottle under the hood that the front washer work out of. the pump may have stopped working and needs replacing. have someone operate the rear washers and listen at the washer bottle to see if you hear the motor working. if not then you will have to check the plug connection for the rear washer pump for corrosion, broken wires and power and grounds. if these check out ok then replace the rear washer pump in the bottle.

May 15, 2014 | Ford Explorer Cars & Trucks

1 Answer

06 colvo xc90 front window and headlamp wiper fluid wont spay but ythe rear window washer does. What could be wrong?


If you can hear the pump running in the washer bottle you mite have a clogged line blow thru them with compressed air both ways on all squirters if you can't hear the pump replace it.

Dec 11, 2013 | Volvo Cars & Trucks

1 Answer

Washer comes on when wipers are turned on. Is replacing the switch gonna fix it? 06 cts


Should. It sounds like wiper switch w/delays/squirters, etc has a short in it and it's activating your washer pump in all positions.

Jan 07, 2011 | 2006 Cadillac CTS

2 Answers

How can I check the fuse of the water pump for the rear wiper. the wiper move but no water coming out!


there are two pumps on the bottle one for the front and the other for the back. most likely the pump stopped working or something got in it and blocked the water flow. the pumps are at the bottom of the bottle. check them out first. they will be the same so you could switch them and see what happens. good luck

May 03, 2010 | 2000 Suzuki Grand Vitara

2 Answers

Windshield squirters don't work. the tank is full and the orfices aren't plugged so it must be the pump. Where is it and how do I fix or replace it?


if the nozzles are wide opened the pump must be bad as you stated. the pump is located mounted to the wiper reservoir jar.

Jan 30, 2010 | 2000 Buick LeSabre

4 Answers

Windscreen washer does not work on renault megane coupe sports motor works but no fluid comes out do not want to take washer bottle out any ideas please


i Just fixed a problem with a renault megan washer motor. If the motor makes a noise but is not pumping any water & the jets@ the windscreen are clear, then pull the suqirter motor out off the washer bottle( the bottle stays in place ) it just pulls out from underneith the bottom stone tray& may need to remove bottom bolt, inner lower wheeel arch. Right Now where the black & white squirter come out of the motor gentlywith a screw driver pop these off together. ( test motor again) ( put in water ) Then with Snap ring plires & part the white & black outlets apart & you will find a rubber seal that looks like it must of grown. When it grows it blocks both ports off. you need to shorten the rubber & keep it flat as remember its job seems to block off either the front or rear port. if it not a good finish you may get water coming out of the front & the rear ifeg your working the front squirters

Dec 04, 2009 | 1986 Renault Sport

1 Answer

Screen washers(front and rear) not working


Quick test since you can hear pumps running: Open hood. Look for a rubber hose going up from engine compartment to underside of hood. This should split somewhere if there are two washer jets on your hood, or else they go to your wipers and squirt directly off them, right? There will be a spot close to where this hose leaves the eng. comp. and joins with the hood that uses a splice connector. You can disconnect the hose here with some wiggling, and hit the squirters again to see if water is at least coming out of this primary hose. Yes? Good then the clog is at the jet end, or squirter end. Use a tiny piece of wire, like a bread tie without the insulation, and poke into the hole of the jet and try to clear out the dirt, or mineral deposit, dried soap scum, whatever. Now squirt again. Should start to clear out, or use compressed air and blow through jet. If your clog is not at the squirting end, follow the hose down to the little pump at the side/bottom of your juice bottle. GOod luck, and don't use too much additive, it clogs easier. Also don't use tap water if you get a lot of scale from hard water. THis will clog, too. Good Luck, TT

Feb 11, 2009 | Ford Focus Cars & Trucks

1 Answer

Ford Taurus 1996-wind screen water squirter not working


You will need a test light/probe to check wether you have power to the windscreen washer bottle motor.If you have power at the motor and it doesnt pump you will need to replace it.Because the wipers are still working its unlikely to be a power supply issue.Can you hear the motor trying to pump when you activate it?If you can hear motor humming then you may have blocked nozzles.Usualy a small sewing needle poked down the squirter nozzles will clear them.Also make sure your water squirter hoses are not blocked and havnt fallen off.

Dec 08, 2008 | 1996 Ford Taurus

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