Question about 2003 Oldsmobile Silhouette
The wipers on my Old Silhouette van only work in high. The fuse is good. They do not work in intermittant or low. They also do not work when I hit the washer (though the fluid does spray).
What should I replace?
The washer pump should be in the resivoir bottle...remove the plug on the bottom of the resivior and check it for power when the washer button ie pushed... if you have power, then you should replave the washer motor...
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Posted on Sep 21, 2008
There are a number of different issues that could cause this.
-The circuit for the wiper should be the same as the washer; same fuse. -I'd suggest trying to run the washer while the hood is open and the engine off. If it runs, you should hear a dull whine.(a 2nd person might be of use to help look and listen)...(find the pump by following the hoses from the wipers to a unit mounted close to the dashboard in the engine compartment)
-If it runs, check to see if any fluid is coming from a hose that might have become disconnected.
-If the pump runs, and if you see no fluid coming from anywhere, and if you can reach the hose connected to the washer pump, pull that hose off the pump. Try running the pump again to see if anything comes out in a good stream.
-If the pump doesn't run at all, check to make sure the connector hasn't come loose.
-If the pump still doesn't run, check to see if you have 12 volts at the connector at the pump. A simple check can be done with an auto bulb connected to the plug at the motor while the pump switch is pushed.
-If you have power at that point, you likely need to replace the pump and motor.(depending upon the age of vehicle & your mechanical abilities...a call to a local wrecking yard is suggested ..atleast to compare the cost vs. new)
hope that helps
Posted on Oct 08, 2008
hi first of all can you hear the motor working if not check the motor if you can you have a blockage either a traped pipe if you have been filling with washing liqiud or simular the jets can get blocked or a pipe has a break or come off yates210456
Posted on Oct 09, 2008
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....
Posted on Jan 08, 2009
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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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