Question about 1994 Chevrolet Astro
The wipers completely shutdown while driving friday. I went to the local recycle shop purchased another, unfortunately installed it and it didn't work. I tested the plug for power throughout the variable settings and power appears to be at the plug. I wondered if you could give me the voltages from the plug and if there was a relay the may be located in the fuse panel. 94 astro van
Should be 12volts on hi- if your getting power to the plug then your relay is working- very possible that your recycled motor is also junk.
Posted on May 25, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 11, 2017 | GMC Cars & Trucks
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.....
Dec 20, 2015 | 2008 Chevrolet Impala
Feb 22, 2018 | 2002 Pontiac Bonneville
can be faulty wiper motor or blown wiper control fuse.
you hear any kind of noise when you starter the wiper function. If yes then
fuse is ok, but issue is wiper motor.
no movement at all and no noise then its blown fuse or shorted/loose wiper
complete troubleshooting i suggest you few helpful links with accurate
the link below:-------
Complete wiper components replacing details ?
1993 Ford F350 wipers not working?
How to Replace a Windshield Wiper Motor
Wipers not working, but hear relay click on Lincoln LS?
Car windshield wiper gets power for movement and stops?
How does cars Windshield Wiper System Works
1997 Honda Protege: Replace Wiper Transmission?
Windshield wiper fluid container leaking?
Where is wiper fuse located on1993 chevrolet suburban
2002 Toyota Sienna: Wipers and Passenger side Power window
These details will help.
Nov 28, 2012 | Toyota Yaris Cars & Trucks
How to Replace a Windshield Wiper Motor
Wipers not working, but hear relay click? http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html----------- Car windshield wiper gets power for movement and stops?
Complete wiper components
This will help.Thanks.
Feb 16, 2012 | Cars & Trucks
Nov 25, 2010 | 2003 Isuzu Ascender
May 30, 2010 | 2006 Honda Accord
Jan 02, 2010 | 2002 Volkswagen Golf
258 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: