Unoperative wipers - Cars & Trucks

If the windshield wipers on your 2002 Corvette won't shut off, it could indicate a problem with the wiper control switch or a malfunction in the wiper motor circuit. Here are some troubleshooting steps you can try:

1. Check the wiper control switch: Ensure that the wiper control switch is in the "Off" position. Sometimes, the switch can get stuck or malfunction, causing the wipers to stay on. Try moving the switch back and forth a few times to see if that resolves the issue.
2. Inspect the wiper motor relay: The wiper motor relay controls the power supply to the wiper motor. If the relay gets stuck or fails, it can cause the wipers to stay on. Locate the wiper motor relay in the fuse box or relay panel and try replacing it with a known working relay of the same type to see if that resolves the issue.
3. Check the wiper motor circuit: The wiper motor circuit may have a short or an electrical problem that is keeping the wipers engaged. Inspect the wiring harness connected to the wiper motor for any signs of damage or loose connections. Use a multimeter to check for continuity and proper voltage in the circuit. If you are not familiar with automotive electrical systems, it is advisable to consult a professional technician or a qualified electrician.
4. Disconnect the battery: As a temporary solution, you can disconnect the negative terminal of the car battery to stop the wipers from running. This will disable other electrical components as well, so it's recommended as a temporary measure until the issue can be properly diagnosed and repaired.

Question edited for clarity. Part of duplicate question added.
Duplicate question deleted.
Question moved to model category.

This says Pulse Board or the Switch

https://www.google.com/search?q=2004+Pontiac+Montana+front+wipers+won%27t+turn+off

This says it does have a relay... but

https://www.google.com/search?q=2004+Pontiac+Montana+wiper+relay

Nothing shows where it is located.

https://www.google.com/search?q=2004+Pontiac+Montana+wiper+relay+location

Relay here

https://www.autozone.com/electrical-and-lighting/wiper-motor-relay

It may not be releasing, you can test if you can find it!

https://www.autozone.com/electrical-and-lighting/wiper-motor-relay

..

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

Wiper/Washer System Operation
The windshield wiper motor module is part of the windshield wiper motor cover and controls wiper motor operation. The accessory voltage supply circuit to the windshield wiper motor assembly is used to operate the wiper motor in all modes. The windshield wiper motor is a 2 speed motor and is operated at low speed in all modes except HIGH. The accessory voltage supply circuit to the windshield wiper/washer switch is used to supply the windshield wiper switch signal circuits. The windshield wiper switch signal circuit voltage levels to the wiper motor module determine the wiper motor operating mode.
When the wiper/washer switch is in the LOW position voltage is supplied through a 24K ohm resistor within the switch to the windshield wiper switch signal 2 circuit, and accessory voltage is supplied to the windshield wiper switch signal 1 circuit. The reduced voltage from the wiper switch signal 2 circuit and accessory voltage from the wiper switch signal 1 circuit causes the wiper motor module to close the wiper motor accessory voltage supply circuit to the wiper motor low speed terminal.

You didn't take into account the wiper switch is a input to the BCM - body control module ,or do you know that ? The BCM controls wiper one an wiper two relay's to turn on the wipers .
Wondering if it is the PCB or perhaps a physical problem? Guessing never finds the problem . Reading how they work in factory service repair info should be the first step for someone that doesn't know .
Intermittent Operation
Windshield wiper DELAY operation is a low speed wiper motor function with a variable delay interval between the wiper motor cycles. The DELAY interval is determined by a series of 5 resistors within the wiper/washer switch. During DELAY wiper operation, the signal circuit voltage is further reduced through the DELAY resistors. The body control module (BCM) monitors the voltage on the signal circuit to determine the delay interval between the low speed wiper motor cycles.
If the wiper switch is moved from a longer delay interval to a shorter delay interval, the BCM will command an immediate wipe cycle and reset the delay timer to the shorter delay interval.
Additionally, intermittent wiper operation is vehicle speed sensitive. As vehicle speed is increased or decreased, the wiper interval will also increase or decrease.

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 1 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.
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper 1 and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper 1 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.

Wiper/Washer System Components
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper 1 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
• WIPER/SW 10A fuse
• WIPER 25A fuse
Refer to Master Electrical Component List.

DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
DTC B3715 05: Front Wiper Relay Drive Circuit Short to Battery or Open

Your best bet , take it to a qualified repair shop.

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 !

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 !

WINDSHIELD WIPERS

It can be faulty wiper motor or blown wiper control fuse.

Do you hear any kind of noise when you starter the wiper function. If yes then fuse is ok, but issue is wiper motor.

If no movement at all and no noise then its blown fuse or shorted/loose wiper control wiring: -----

For complete troubleshooting i suggest you few helpful links with accurate solutions.

-------------

Click the link below: -------

1993 Ford F350 wipers not working?

http://repairhelpcenter.blogspot.in/2012/02/1993-ford-f350-wipers-not-working.html

------------

How to Replace a Windshield Wiper Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

------------

Wipers not working, but hear relay click on Lincoln LS?

http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html

-----------

Car windshield wiper gets power for movement and stops?

http://schematicsdiagram.blogspot.com/2011/12/car-windshield-wiper-gets-power-for.html

----------

How does cars Windshield Wiper System Works

http://technoanswers.blogspot.com/2011/11/how-does-cars-windshield-wiper-system.html

---------

1997 Honda Protege: Replace Wiper Transmission?

http://technoanswers.blogspot.in/2012/06/1997-honda-protege-replace-wiper.html

----------------

Windshield wiper fluid container leaking?

http://whatisbyme.blogspot.in/2012/05/windshield-wiper-fluid-container.html

-----------------

Where is wiper fuse located on1993 chevrolet suburban

http://technoanswers.blogspot.in/2012/02/where-is-wiper-fuse-located-on1993.html

------------

2002 Toyota Sienna: Wipers and Passenger side Power window stopped working?

http://technoanswers.blogspot.in/2012/04/2002-toyota-sienna-wipers-and-passenger.html

-------------

Complete wiper components replacing details for Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/complete-wiper-components-replacing.html

------------

These details will help.

Thanks.

It can be faulty wiper motor or blown wiper control fuse.

Do you hear any kind of noise when you starter the wiper function. If yes then fuse is ok, but issue is wiper motor.

If no movement at all and no noise then its blown fuse or shorted/loose wiper control wiring:-----

For complete troubleshooting i suggest you few helpful links with accurate solutions.

-------------

Click the link below:-------

1993 Ford F350 wipers not working?

http://repairhelpcenter.blogspot.in/2012/02/1993-ford-f350-wipers-not-working.html

------------

How to Replace a Windshield Wiper Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

------------

Wipers not working, but hear relay click on Lincoln LS?

http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html

-----------

Car windshield wiper gets power for movement and stops?

http://schematicsdiagram.blogspot.com/2011/12/car-windshield-wiper-gets-power-for.html

----------

How does cars Windshield Wiper System Works

http://technoanswers.blogspot.com/2011/11/how-does-cars-windshield-wiper-system.html

---------

1997 Honda Protege: Replace Wiper Transmission?

http://technoanswers.blogspot.in/2012/06/1997-honda-protege-replace-wiper.html

----------------

Windshield wiper fluid container leaking?

http://whatisbyme.blogspot.in/2012/05/windshield-wiper-fluid-container.html

-----------------

Where is wiper fuse located on1993 chevrolet suburban

http://technoanswers.blogspot.in/2012/02/where-is-wiper-fuse-located-on1993.html

------------

2002 Toyota Sienna: Wipers and Passenger side Power window stopped working?

http://technoanswers.blogspot.in/2012/04/2002-toyota-sienna-wipers-and-passenger.html

-------------

Complete wiper components replacing details for Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/complete-wiper-components-replacing.html

------------

These details will help.

Thanks.

Hi there:
Isnt a diagram but If you have removed the motor, here is the motor installation procedure....

INSTALLATION PROCEDURE



Align the wiper motor to the wiper drive system module. NOTE: Refer to Fastener Notice in Service Precautions.
Install the wiper drive system module to wiper motor screws. Tighten Tighten the wiper drive system module to wiper motor screws to 7 N.m (62 lb in) .
Connect the electrical connector to the wiper motor.
Install the crank arm on the wiper motor.




Rotate the washer solvent container into the installation position.
Install the washer solvent container screws. Tighten Tighten the washer solvent container screws to 6 N.m (53 lb in) .
Inspect the wipers for proper operation.




Also, here is the crank arm procedure...

REMOVAL PROCEDURE

Remove the wiper system module cover.
Remove the drive link from the wiper motor crank arm.

2.1. Loosen the drive link screws.
2.2. Remove the drive link from the wiper motor crank arm.

Remove the wiper motor crank arm cover and seal.
Remove the wiper motor crank arm from the wiper motor.

4.1. Loosen the wiper motor crank arm screw.
4.2. Tap on the wiper motor crank arm screw with a soft-faced mallet while holding up on the wiper motor crank arm until the wiper motor crank arm loosens from the wiper motor.
4.3. Remove the wiper motor crank arm screw and the wiper motor crank arm from the wiper motor.

INSTALLATION PROCEDURE




Install the wiper motor crank arm onto the wiper motor.

1.1. Turn the ignition switch to the ACCY position.
1.2. Set the wiper switch to PULSE position. The wiper motor should be operating.
1.3. Turn the ignition switch to OFF when the wiper motor is in the innerwipe position.

IMPORTANT: Do not rotate the wiper motor shaft during the installation of the wiper motor crank arm.

1.4. Install the wiper motor crank arm on the wiper motor while maintaining a 4-8 mm (0.157-0.315 in) gap between the V-grove in the wiper motor crank arm and the tab.

NOTE: Refer to Fastener Notice in Service Precautions.

Install the wiper motor crank arm screw. Tighten Tighten the wiper motor crank arm screw to 16 N.m (12 lb ft) .
Install the wiper motor crank arm cover and seal.




Check the gap between the wiper motor crank arm and tab. If the gap is not 4-8 mm (0.157-0.315 in) , remove the wiper motor crank arm and repeat installation steps.
Install the drive link onto the wiper motor crank arm.
Install the drive link screws. Tighten Tighten the drive link screws to 5 N.m (44 lb in) .
Install the wiper system module cover.
Inspect the wipers for proper operation.

Additional procedures: Wiper Motor Module Replacement.

TOOLS REQUIRED
J 39822 Wiper Arm Puller

REMOVAL PROCEDURE

Turn the ignition switch to the ACCY position.
Set wiper switch to the PULSE position.
Turn the ignition off when the wiper arms are in the innerwipe position and not moving.
Disconnect the washer hose from the washer nozzle.
Remove the cover from the wiper arm nut.
Remove the wiper arm nut from the wiper transmission drive shaft.
Using J 39822 remove the wiper arm from the wiper transmission.
Remove the wiper blade from the wiper arm.
Clean the knurls of the wiper transmission drive shaft with a wire brush.



Install the wiper blade onto the wiper arm.
Install the wiper arm onto the wiper transmission drive shaft. IMPORTANT: Hold the measuring device at 90 degrees (perpendicular) to the wiper blade tip.
Measure the distance from the wiper blade tip to the solid edge of the windshield blackout. Position the wiper arms at the following distances:

LH - 147 mm (5.79 in) above the glass blackout.
RH - 123 mm (4.84 in) below the glass blackout.

NOTE: Refer to Fastener Notice in Service Precautions.



Install the wiper arm nut onto the wiper transmission drive shaft. Tighten Tighten the wiper arm nut to 48 N.m (35 lb ft) .
Install the cover on the wiper arm nut. IMPORTANT: Lubricate the washer hose with the windshield washer solvent to ease installation on the washer nozzle.
Install the washer hose on the washer nozzle.
Inspect the wipers for proper operation.



Remove the wiper arms from the vehicle.
Remove the air inlet grille panel.
Remove the wiper motor.
Remove the air inlet panel to wiper motor module screws.
Remove the wiper motor module from the vehicle.
Remove the insulators from the wiper motor module.

INSTALLATION PROCEDURE

Install the insulators onto the wiper motor module.
Align the wiper motor module to the air inlet panel. NOTE: Refer to Fastener Notice in Service Precautions.
Install the air inlet panel to wiper motor module screws. Tighten Tighten the air inlet panel to wiper motor module screws to 10 N.m (89 lb in) .
Install the wiper motor.
Install the air inlet grille panel.
Install the wiper arms onto the vehicle.
Inspect the wipers for proper operation.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Wiper Arm & Blade (Front) Removal & Installation Wiper Blade To Remove:

1. Turn ignition switch to ACCY position.
2. Turn wiper switch to PULSE position and turn ignition OFF when wipers are stopped in the innerwipe position.
3. Push the wiper blade clip button IN and remove wiper blade from wiper arm.

To Install:

1. Insert wiper arm hook through opening in wiper blade.
2. Place wiper blade pivot in the inside radius of wiper arm hook.
3. Pull on wiper blade pivot into hook until it locks into place.
4. Check wipers for proper operation.

Wiper Arm To Remove:
NOTE: Mark position of wiper blade on windshield to ensure proper position upon reassembly.

1. Remove washer hose.
2. Lift wiper arm from windshield and use a screwdriver to disengage retaining latch.
3. Remove wiper arm from shaft.

To Install:

1. Place wiper arm on shaft so that wiper arm aligns with marks placed on windshield.
2. Press arm assembly on shaft and push retaining latch IN.
3. Connect washer hose.
4. Remove windshield markings and check wipers for proper operation.