Question about Pontiac Grand Prix

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Winshield wiper works on high speed but on no other speeds

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Your motor is going out you need to replace the wipermotor

Posted on Oct 14, 2008

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Posted on Jan 02, 2017

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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


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Body control module (BCM)


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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.....

Dec 20, 2015 | 2008 Chevrolet Impala

2 Answers

What would cause the windshield wipers on my recently purchased Jeep Patriot Sport work on every speed except the high speed. High speed doesn't work at all.


The intermittent switch has a bad contact in it for the high speed, i would say, most likely will have to replace it.

Sep 15, 2014 | 2008 Jeep Patriot Sport

2 Answers

What is the relay location in the relay box


The problem would be in the stalk controller. The wiper Relay is what provides power to the motor for all settings, the delayed wipers, low speed, and high speed. There are not 3 relays, but 1 for all functions. If you have power to the high setting, the relay is working.

Jul 27, 2014 | 1998 Ford Ranger

1 Answer

Windsheild wipers work only on the low speed


check the winshield wiper fuse sometimes they have a high low wiper fuses otherwise they can be known for the winshield wiper delay switch to go out

Nov 21, 2010 | 1993 Ford F350

1 Answer

Mi winshield wipers went crazy, looks everithing normal they just work in the high speed and suddenly stopped working its a2001 windstar


there is a circuit borad in the wiper motor that may have went out it is not very expensive to fix

Sep 02, 2010 | 2001 Ford Windstar

1 Answer

Winshield wiper cleaner doesnt work


hate to say it but if you hear the pump running you either have a pinched hose or a hole in it usually its just a rodent passin through knaws a hole or 10 and moves on so fill the bottle run the pump a bit and see if its comin out on the ground

Jul 25, 2010 | 2003 Nissan Xterra

1 Answer

WIndshield Wipers only start on fastest speed


There are three things involved in wiper operation, switch, the delay circuit board and the motor. If you select winshield wash do the wipers operate normaly? if this is the case then the motor works and delay is operating < not a guaranty on delay but it does say the circuit is operating.If wash cycle does not work then circuit not working< could still be switch causing this> if you know someone or you yourself can remove switch it needs to be ohmed to know that it is operating and if it is then voltage during operation in all settings needs checked at wiper motor.If no voltage found in inoperable settings then delay is not working.While investigating problems like this always inspect wiring as you check from point to point because could be damaged wires as well.

Apr 21, 2009 | 1999 Chevrolet Malibu

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