Question about 1998 Ford Mustang

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My windshield wipers only work on high

The lower settings don't work but the highest/fastest speed does

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  • Ford Master
  • 694 Answers

Replace the wiper switch that will solve this problem

Posted on Mar 07, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 6 Answers

SOURCE: 2002 Ford Taurus blower fan only works on high

fords are notorius for faulty fan switches, you will need to get a new one, but it will probably fail in a year or two.

Posted on Nov 11, 2008

babaphat
  • 24 Answers

SOURCE: Windshield wiper relay

this might be a connection/ currosing problem. Check the windshild wiper relay for loose wires and then take apart the connection. Clean them up and put back together. also check your fuses.

Posted on Nov 24, 2009

  • 95 Answers

SOURCE: windshield wipers only work on high on 98 ford ranger

Try replacing relay for wiper with another same relay from fuse block from another working accessory.Had same issue on friends Ford Ranger. Moved relays and cleaned harness connection at fuse block. Works fine.

Posted on Mar 14, 2010

sisadsl
  • 1508 Answers

SOURCE: Ford F250 windshield wipers only work on high

it is likely the switch, on the lower speeds it works through some resistors, high speed is a direct contact

Posted on Apr 24, 2010

sscullys
  • 984 Answers

SOURCE: the heating and air conditioning fan only works on

If the system is a Manual ( not the EATC / Electronic Automatice Temperature Control System ) it is most likely the blower motor resistor.

For the new body style 2004 ( not the 2004 Heritage or Lightning models ), it is behind the glove box.
Open teh glove box, press on one side, to allow the glove box to hang down.
The Blower motor resistor is located in the side of the blower motor housing.

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If your 2004 is a Heritage or Lightning, the blower motor resistor is access from under the dash / glove box area.
7e8c043.jpg

On this type ( same as the 97-03 ) the blower motor resistor or the resistor and pigtail might need to be replaced.
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Just pay attention to which body style 2004 you have ( new like the 2005-2008 or the 2004 Heritage / Lightning, which looks like the 97-03 MY trucks.

Posted on Aug 12, 2010

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1 Answer

How do I find out if the wipers on my 2006 H3 Hummeris on a relay?


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.

Low Speed Operation
When the wiper switch is in the Low position, voltage is supplied through an internal resistor to the signal circuit. The body control module (BCM) monitors the windshield wiper switch signal 1 circuit, and energizes the wiper micro relay which will operate the windshield wiper motor. The wiper motor will operate at low speed, since the wiper 2 relay is de-energized. Low speed can also be commanded with a scan tool, by commanding Wiper Relay Cmd. ON and OFF. Refer to Scan Tool Output Controls .
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper micro relay and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper micro relay switched output to the switched input of the wiper 2 relay through its contacts and out the switched output of the wiper 2 relay to the high speed circuit of the windshield wiper motor. The windshield wiper motor will operate at high speed. During high speed wiper motor operation the wiper switch signal circuit is at the low speed signal voltage, and the body control module (BCM) supplies redundant voltage to the wiper relay via the wiper diode.

This info is out of hummer factory service manual !

Dec 10, 2016 | 2006 Hummer H3

1 Answer

My front windshield wipers will only work on high. Any suggestions?


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    The windshield wipers only worked occasionally. ... My 1998 dodge ram wipers only work on high will this help me? thanks.... Express van. you have to take out the motor and the transmission from under the front of the van..

Feb 09, 2016 | Cars & Trucks

1 Answer

I'm driving in rain, wipers working good, all of a sudden they quit! I drive for 15 min, check again, they work for a while, then quit again...what in the problem?


If your not familiar with automotive electronics an module control of components , I suggest you take it to the dealer . They have the tools to diagnose this type problem !
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


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.
High Speed Operation When the wiper switch is in the high speed position, ground is applied through the windshield wiper switch high signal circuit to the body control module (BCM) indicating the wiper high speed request. In response to this signal, the BCM then energizes the wiper PCB relay, as stated above, and the wiper high PCB relay by applying ground through the control circuit to the coil side of the relay. With the wiper high relay energized and its switch contacts closed to the high speed control circuit of the wiper motor, the motor will operate at high speed.
Wiper motor high speed operation and the wiper high speed PCB relay can also be commanded ON/OFF by using a scan tool. Refer to Control Module References.
DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
DTC B3875 00: Wiper High Speed Relay Circuit
DTC B3922 00: Front Wiper Function Select Circuit
You could Have a switch problem , BCM problem ,PCB relay problem , the pcb relays are non serviceable an the whole under hood fuse box would need to be replaced . Malfunctioning motor bad ground some where etc.....

Dec 20, 2015 | 2008 Chevrolet Impala

2 Answers

What would cause the windshield wipers on my recently purchased Jeep Patriot Sport work on every speed except the high speed. High speed doesn't work at all.


The intermittent switch has a bad contact in it for the high speed, i would say, most likely will have to replace it.

Sep 15, 2014 | 2008 Jeep Patriot Sport

2 Answers

Wipers don't work in high speed and when intermittent wipers are set they stop in the middle of the windshield.


Yes that is likely a switch problem. Before you buy any parts have a shop confirm my guess.

Mar 21, 2014 | 1994 Ford Crown Victoria

2 Answers

Windshield wipers work but interminent settings don't


most likely cause is the wiper switch has gone bad and unable to 'time' the intermittent speeds.the intermittent speeds work on a resistor type system where low and high speeds add direct voltage.

Jul 30, 2011 | 2000 Toyota Avalon

1 Answer

The windshield wipers on my 1994 S 300 mercedes diesel work intermittently then quit and start up again seems like they are ready to crash for good. how do i repair so they work when needed?


1) It is normal for the wipers, in rain sensor mode, to cycle once upon startup.

2) In rain sensor mode, the wipers should be intermittent with the cycles increasing as the volume of moisture increases on the windshield. The speed will increase until it reaches the continuous slow speed of position 2 on the switch. It will not increase to the fastest speed which is position 3 on the switch. You have to go to the fastest speed by manually rotating the switch to postion 3. Doesn't seem like a design flaw to me.

Dec 20, 2010 | 1994 Mercedes-Benz S-Class

1 Answer

Windshield wipers stopped working - only highest


did you ever get an answer I have the same problem. NOw my turn signals don't work and my wipers do??

Dec 13, 2009 | 1994 Saturn Sc

1 Answer

WIndshield Wipers only start on fastest speed


There are three things involved in wiper operation, switch, the delay circuit board and the motor. If you select winshield wash do the wipers operate normaly? if this is the case then the motor works and delay is operating < not a guaranty on delay but it does say the circuit is operating.If wash cycle does not work then circuit not working< could still be switch causing this> if you know someone or you yourself can remove switch it needs to be ohmed to know that it is operating and if it is then voltage during operation in all settings needs checked at wiper motor.If no voltage found in inoperable settings then delay is not working.While investigating problems like this always inspect wiring as you check from point to point because could be damaged wires as well.

Apr 21, 2009 | 1999 Chevrolet Malibu

1 Answer

Problems with tun signal/wiper arm on 2004 chevy venture mini-van


I had the same thing - it also affects the 4 way flashers.  you'll end up replacing the entire control arm (turn signal lever)
Good luck!

Feb 13, 2009 | 2004 Chevrolet Venture Passanger

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