Question about 1991 Ford Escort

1 Answer

Troubleshoot wipers windshield wipers quit. how do I trobleshoot to find the problem. Fuse ok could be switch, motor or relay?

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1 Answer

Best if you have a wiring diagram of at least the part of
the curcuit your going to work on (wiper circuit)

That applies to any electrical issue,simply can't start your
checking or testing without a road map.

If it were to guess for you,I would say the motor has failed

Even with a wiring diagram it isn't always easy to jump it
once out of the car,to test it. You won't have the internal
wiring diagram for the motor.

The switch you can turn on & use your volt meter at the
wiper motor with it disconnected,but again need to have the
diagram to probe the correct wires

Posted on Dec 08, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Windshield wipers won't work. Ford 2002 ZX2

The actual assembly arm that you turn on your windshield wiper (that says all of the controls on it) was bad and was causing the fuses to blow and burning up the motor. It was replaced and it works now as well as the a/c and heat which was not working before this fix.

Posted on Jan 16, 2009

pippall
  • 1486 Answers

SOURCE: my 99 ford windstar has a click noise from the fuse box under the

Check if u have power going to the motor first.If you have then your switch is faulty.

Posted on Jun 28, 2009

c17hydro
  • 2984 Answers

SOURCE: Ford Taurus 1999SE-Windshield wiper motor just hums.How to fix ?

Removal & Installation To Remove:

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Disconnect the battery ground cable.
  3. Remove the wiper arms.
  4. Remove the 8 plastic retainers and the 6 clips holding the cowl vent screens to the inner panels. Turn the retainers 1⁄4 turn counterclockwise to remove.
  5. Remove the cowl vent screens.
  6. Disconnect the electrical connector from the wiper motor and remove the 4 bolts that mount the module assembly to the cowl.
  7. Remove the windshield wiper module from the vehicle.
  8. Rotate the wiper operating arm in a clockwise direction to gain access to the bolt retaining the arm to the motor. WARNING
    Always rotate the wiper operating arm in a clockwise motion or damage to the motor could occur.
  9. Remove the nut retaining the wiper operating arm to the wiper motor.
  10. Remove the three wiper motor-to-wiper module assembly retaining bolts and remove the motor from the vehicle.
To Install:
  1. Position the wiper motor on to the module assembly. Install the three wiper motor-to-wiper module assembly retaining bolts. Tighten the bolts to 115-151 in lbs (13-17 Nm).
  2. Position the wiper operating arm on the wiper motor output shaft. Install the mounting nut and tighten to 22-29 ft-lbs (30-40 Nm).
  3. Position the windshield wiper module onto the cowl. Install the mounting bolts and tighten to 106 in-lbs (12 Nm).
  4. Connect the wiper motor electrical connector.
  5. Position the cowl vent screens onto the inner panels. Install the 8 plastic retainers and the 6 clips holding the cowl vent screens to the inner panels. Turn the retainers 1⁄4 turn counterclockwise to install.
  6. Install the wiper arms.
  7. Connect the battery ground cable.
  8. Adjust wiper arms if necessary.

Here is the picture of the motor....it is the round object in the middle of the picture that looks like a can and has a square block on the end of it.

You have to remove the cowl vent panel....just under the windshield. $64.00 for a new motor.

Posted on Oct 01, 2009

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  • 14585 Answers

SOURCE: 1987 Ford Thunderbird. The windshield wipers not working

You can't check these modules unless you have the specs on them.good luck on finding them, but if you do let me know please. I've had the same problems on fords. they hide these modules on the passenger side right side of the glove box, just under the dash. usually the only box there

Posted on Jun 18, 2010

ZJLimited
  • 17970 Answers

SOURCE: windshield wipers do not work

Crown Victoria juts ahev one fuse/relay for wiper, check in Power Distribution Box, position 110, 30AMP (Cartridge fuse) for Wiper Module.

Hope helps.

Posted on Oct 27, 2010

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1 Answer

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

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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

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

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.....

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It could be a relay switch in the fuse box or engine compartment.If you have the manual look in to see if your wipers have a relay switch.If not your wipers motor could be bad.

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Fuse#11 30A , Wiper Run/Park
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U will also need to check the relays if the fuse is ok, the relay, it is the underhood fuse box
Relay #202 — Front Wiper Run/Park Relay

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