Our windshield wipers only work on high, the front windshield wiper fluid switch and the cruise control does not work at all. All other features on the switch function properly. We replaced the entire multifunction switch as directed by our mechanic and the dealership, which did not resolve the issues. No errors are showing up when hooked up to the computer. We do not know what to try next?
SOURCE: Windshield Wiper Not Working Properly
Well sure enough all I had to do was replace the circuit board...wish I had done this a couple months ago...it was so easy to do and will now be much easier to drive with being able to see clearly again....
SOURCE: My wiper blades stop working.
This sounds like the wiper motor. The brushes/commutators in the motor are probably fouling up. At high speed more current is sent to the motor so it works. If you replace the wiper motor this should solved the problem.
For the wiper pump check the fuse.
Then check to see if the fluid tube is clear and not plugged.
Finally check/clean electrical contacts on pump motor and if you can heard the wiper pump motor running when activated. If not replace pump motor. (they do wear out)
These parts can be gotten at auto recyclers also.
SOURCE: 1999 Silverado windshield wipers only work on high
Module. call your dealer, it may be covered under a RECALL.
SOURCE: My windshield wipers/cruise control issues
Hi Chris.
If you are sure the cruise and the wipers go out at the same time it may be a problem in your control switch but it would be highly unusual to be related to both.
Here is a possible solution to your wipers though.
There are 3 torx screws that hold a plastic panel in place on your wiper motor. Remove the power connector from your wiper motor and then the 3 screws. When the cover is off you will see a circuit board. Gently pull the circuit board straight out (there are some metal clips that will release).
When the board is out look carefully on the board in the area where the plug is. You may need a magnifying glass if your eyes are like mine ;) .
If you see cracks at the solder joint hit them with a solder gun.If you dont you may need a new board.
SOURCE: 2003 Chevy SuBurban The windshield wipers will not
wiper module which is on the wiper motor buy just the module
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Body control module (BCM)
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Wiper PCB relay
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Wiper high PCB relay
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Windshield wiper motor
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Windshield washer fluid pump
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Windshield washer fluid level switch
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WPR fuse 25 A
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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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