Question about 1998 Lincoln Town Car

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Windshield wipers wont work

The motor is good and the switch is good as well as the fuse cant seem to find a relay anywhere and all the wiring seems to be in good shape tested for voltage at the motor but no matter what the switch is on i have one constant hot and one constant ground

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If you are getting power at motor it is likley that motor is bad since the switch is control for the different voltage

Posted on Jan 27, 2009

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Posted on Jan 02, 2017

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Wipers will not turn on 2006 colorado


There are two relay's in the under hood fuse / relay box . Wiper relay an wiper relay 2 . Maybe one is bad . also check fuse #14 25 amp. Wiper fuse.Plus the BCM - body control module has a hand in making the wipers work . Are you familiar with automotive electronic control modules ?
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper micro relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIP/WASH 10A fuse
• WIPER 25A fuse

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper micro relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay switched output to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.

Do you have any speed !

Oct 06, 2017 | Cars & Trucks

1 Answer

When I turn the switch to my 2006 Cadillac DeVille CTS windshield wiper it does nothing no sound no movement what is wrong


Hard to say what's wrong without testing thing's . Is there B+ voltage to the wiper switch ? B + voltage to the wiper motor ? Do you know how to use a voltmeter ? How to test electrical circuits ?
Here is a factory service manual list of componets involved .
Wiper/Washer System Components
The Wiper/Washer System consists of the following electrical components:
• Accessory relay
• Heated washer nozzles w/XA7
• WASH NOZ 10A fuse
• Windshield washer fluid level switch
• Windshield washer pump motor
• Windshield wiper motor
• Windshield wiper motor module
• Windshield wiper/washer switch
• Wiper/washer switch 10A fuse
• Wiper motor 30A fuse

Do you know how the wipers work ?
Windshield Wiper Motor Wiring Tutorial
Wipers Inoperative - All Modes ?????
Wiper Motor Switch Troubleshooting

Sep 05, 2017 | Cadillac Cars & Trucks

1 Answer

Looking for the fuse for the wiper motor 2008 chevy impala


WPR fuse 25amp under hood fuse box .
Wiper/Washer System Components
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper PCB relay
• Wiper high PCB relay
• Windshield wiper motor
• Windshield washer fluid pump
• Windshield washer fluid level switch
• WPR fuse 25 A
• WSW fuse 10 A
This is more then likely not a fuse issue !!!!!!!
Low Speed Operation
When the wiper switch is in the low speed position, ground is applied through the switch internal resistor and the wiper switch low signal circuit to the body control module (BCM). In response to this signal, the BCM energizes the WIPER PCB relay by applying battery voltage through the wiper relay control circuit to the coil side of the relay. This allows battery positive voltage from the WPR fuse to flow through the switch input side of the WIPER PCB relay and out to the switch input side of the WIPER HIGH PCB relay. Since the wiper high relay is de-energized and its switch contacts are normally closed to the low speed control circuit of the windshield wiper motor, the motor will operate at low speed.
Wiper motor low speed operation and the wiper PCB relay can also be commanded ON/OFF by using a scan tool. Refer to Control Module References.
The PCB relays mentioned above are soldered right into the circuit board inside the fuse/relay block under the hood . There are alot of reasons for the wipers not to work ! The fuse could be blown but fuse's don't just blow for no good reason , short to ground , low resistance high current flow etc.... Intermittant !

Power and Grounds
With the ignition in the ON position, accessory voltage is supplied through the 25A WPR fuse to the WIPER PCB relay, the WIPER HIGH PCB relay and the WS WASH PCB relay that are all located in the underhood fuse block. Refer to Wiper/Washer Schematics.
G200 provides ground for the windshield wiper motor and the WIPER PCB relay. G100 provides ground for the windshield washer fluid pump and the windshield washer fluid level switch.

Dec 04, 2016 | Cars & Trucks

2 Answers

'07 Impala Wipers Work Intermittently


Did you check for voltage at the wiper fuse? My info says that fuse is hot all the time. Use a digital multimeter. Everything off, take a reading across battery posts, the generic spec for a full charge is around 12.6 volts. You should get close to same reading at the wiper fuse, hopefully. When checking voltage at the fuse, use chassis ground not the other leg of fuse. There are wiper relays, those are pcb relays, they are soldered into the fuse box, you can't pull them out. Your bcm is also involved with those relays. Your multifunction switch basically tells the bcm you turned on your wipers, then the bcm controls voltage or ground for the relays. You can see wire color for hi and lo speed voltage. Maybe a problem with fuse box or wiring circuit if voltage is low? I hope this was of some help?
wiper-byjr2x1a1ejmcnbtj5cbblt2-1-0.jpg

Dec 04, 2017 | 2007 Chevrolet Chevrolet Impala LT

1 Answer

2009 Saturn Vue. Rear Wiper and Washer both stopped working at same time.


FUSE...RELAY...CIRCUIT BREAKER...OR WIRING! WITH REAR WIPER SQUITER SWITCH ENGAGED,,,CHECK FOR VOLTAGE AT HARNESS CONNECTOR

Feb 09, 2013 | 2009 Saturn VUE

1 Answer

Windshield wipers will not park


Your problem is probably in the wiper transmission itself. There is a switch that tells what position to stop feeding power to the motor. But if that switch isn't working, the rest of the system does not know what to do, nor exactly when! However, if you have a good concept of timing, what you COULD do, is simply turn the wiper switch off the instant they are at the "lowest point" in their sweep cycle ... at a cost of NOTHING!

May 16, 2017 | 2001 Ford Windstar

1 Answer

Windshield wipers don't work.Fuse is good and motor is good.No power to motor. The tag to tell what relay is for what is missing. Was wondering if the wipers had a relay and which one it is.


Hello Firerocker.
If your washer motor works there is power in the circuit and ground.
The wiper motor housing needs to be grounded.
If neither one works check for power on the green wire leading into the motor. If nothing there your switch may be bad.
If there is power to the green wire then check for power on the gray wire on low wiper speed and power on purple on high speed.
Here is a diagram if you need it.

http://i28.photobucket.com/albums/c227/Kiltylake/Wiper.gif

Hope this gets your wipers going again.

KL


Feb 12, 2010 | 1992 Buick LeSabre

1 Answer

I changed the relay fuse to my windshield wipers and the knob and my wipers still wont work on my 98 plymoth grand voyager what should i check


Turn wipers on (veh in "on" or "acc" position)
Disconnect the electrical connection at the windshield wiper motor (located in the engine compartment on the fire wall) and check for voltage. If you have voltage, there is a good possibility your windshield wiper motor is bad.
You may also: Disconnect the electrical connection at the windshield motor and run a heavy gauge wire directly from the positive side of the battery to the motor. If you get the windshield motor to come on. There may be only a wiring (short) problem between the relay and the motor.
Let me

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98 Lincoln TC,Cold starts fine ,runs good until warm, then shuts off. No codes,Cranks ok, have spark, PATS ok. No fuel pressure, cant hear fuel pump prime,New Fuel relay. jumped fuel pump - works. I do not hear fuel pump prime up, do not have fuel gauge, but pressing on valve in fuel rail- no pressurized fuel. Fuel regulator seems ok, not leaking / vacuum line dry as a bone. If I let it set for 15 min , it will start up again, but for a few minutes then dies out. If I let it set overnight it starts up perfectly and runs until operating temp is reached then stalls/stumbles, and shuts down. Vacuum is good while cranking, even with no start, Checked Inertia switch in trunk, it is not tripped. I have seen Ford TSB summaries' that mention issues like this , but I am not able to see to description. A point to add, the MAF sensor was cleaned, then I decided to replace it and did not make a difference. I do not have any stored codes, and the PATS is working fine, typical 2 second flash from and once key is inserted a 3 second steady light, then disappears. I have seen the TSB mentioning C103 Connector, it looks fine, I swapped out fuel pump relay with ac relay, still no difference.mention of wires around battery, do not know where to start. in dash service engine light and odometer is normal, seen other posts the say they only have lines, but mine is ok. the start of all of this , I washed engine with regular garden hose, ( not using pressure washer).also in the mean time, rear window defroster stopped working as well, can not say for same reason, but a mention.My problem started after washing engine. this is one of four Panther platform vehicles I owned with exact 4.6l w code engine, which I rinced down before. The only sensor I can think of is Oil pressure , or a corroded wire

Feb 27, 2017 | 1998 Lincoln Town Car

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