Question about 2007 Chevrolet Silverado 2500HD

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Have a 2007 chevy silverado and the windshield wipers lite won't change. I feel the reserved tank up. still displays washer is low. How do i fix?

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Disconnect the wiring harness at the pump reservoir and check for faulty wiring, if not, then suspect faulty sensor/pump switch.

Posted on Mar 04, 2009

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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

In my 2007 Saturn Vue there is what I think is an air pump which is cracked that one port is not connected to anything.


There is a electric motor that pumps washer fluid . Located in the bottom of the washer fluid tank .
Wash Operation (Front and Rear Wipers)
The front and rear washer systems use the same windshield washer fluid pump. When either the front or rear wiper is in the washer position voltage will be supplied to one side of the windshield washer fluid pump (depending on whether it is front or rear), while the other side of the pump is grounded.
At this point, the windshield washer fluid pump sprays solvent onto the windshield. When the front or rear washer is activated, the BCM receives an input from the switch that is activated. The BCM will control the wipers while in the WASH mode. The BCM will control either the front wiper relay or the rear wiper relay to turn on the wipers. The windshield wipers operate at low speed for 3 swipes and returns to the park position.

When turning on the washers do you hear the motor run ? Have some one try it while you listen at the washer fluid tank ! These pump motors do go bad .
turn OFF the ignition.
Disconnect the harness electrical connector of the windshield washer fluid pump.
Connect a test lamp from the windshield washer pump control circuit to a good ground .
Turn ON the ignition, with the engine OFF.
Press the front washer switch.
Does the test lamp illuminate?
YES or NO !

Nov 18, 2016 | Saturn Cars & Trucks

1 Answer

Windshield wiper will not turn off . Hi and low speed works but intermintment will not work and will not turn off


replace the wiper board, go to your local chevy dealer and purchase the wiper board. remove the wiper motor cover & you'll see the wiper board. be careful not to break to the plastic arm.

Oct 12, 2009 | 2003 Chevrolet Silverado 1500

2 Answers

I have a 2005 Chevy Equinox and my windshield washer fluid does not work. The reservoir is full and the wipers wipe, but no fluid comes out. nothing is leaking under the car either. what else can i check...


u will need to pull the washer fluid tank out and check to see if the tank motor that pumps the fluid is getting 12 volts when the washer switch is pushed, if it is the pump will need to be replaced, if it isn't then the washer switch is defective, this switch is part of the turn signal switch.

Aug 24, 2009 | Chevrolet Equinox Cars & Trucks

1 Answer

1983 chevy pick up wipers won't turn off


The wipers have a control module in the wiper motor. That is what is wrong. On that model you will have to replace the wiper motor . Good Luck

May 07, 2009 | 1983 Chevrolet Silverado

1 Answer

Rear windshield washer motor works, but no fluid comes out


Rear washer may have it's own reservoir . Can you hear a pump humming when you activate the washer? Look in the under flooor compartment

Mar 22, 2009 | 1997 Chevrolet Suburban

1 Answer

Windshield wipers on 03 silverado does not shot off,


Your wiper motor has shorted out and needs replacment.
In order to find out you need to disconnect the wiring from the wiper control switch,with the ignition on, if the wipers stop then you need to replace the switch.
If the wipers keep running, then you have a defective motor, replace the motor.

Mar 04, 2009 | 2007 Chevrolet Silverado 2500HD

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