At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Delay and low range wiper setting do not work on my 2001 1/2 TRK
I parked my truck in the evening during heavy snow. I left my delay wipers on. The next morning I started my truck to warm it up and the delay wipers were on. Now, my wipers will only work on high. Any ideas?
Mine is a 2500HDWipers Froze in the ice
now i only have High Speed
no delay or low speed
Mine is a 2500HD
AnonymousMar 20, 2014
Low torque accelerating up hill and 2 to 3 seconds delay on acceleration.Low torque accelerating up hill and 2 to 3 seconds delay on acceleration.
AnonymousMar 25, 2014
turn on wipers in delay and sometimes they jump,skip and freeze.Turning them off and back on sometimes works and sometimes they don't come back to park position.turn on wipers in delay and sometimes they jump,skip and freeze.Turning them off and back on sometimes works and sometimes they don't come back to park position.
AnonymousMar 29, 2014
works fine on high and low speed but not on delay ?works fine on high and low speed but not on delay ?
You can't post conmments that contain an email address.
Re: Delay and low range wiper setting do not work on my...
Chevy has had Problems with the Wiper Motors on these Trucks for a Long time now. On some Models they Issued Recalls. On My 95' I just Replaced the Wiper Motor and have had NO Problems Since!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You didn't take into account the wiper switch is a input to the BCM - body control module ,or do you know that ? The BCM controls wiper one an wiper two relay's to turn on the wipers .
Wondering if it is the PCB or perhaps a physical problem? Guessing never finds the problem . Reading how they work in factory service repair info should be the first step for someone that doesn't know .
Intermittent Operation
Windshield wiper DELAY operation is a low speed wiper motor function with a variable delay interval between the wiper motor cycles. The DELAY interval is determined by a series of 5 resistors within the wiper/washer switch. During DELAY wiper operation, the signal circuit voltage is further reduced through the DELAY resistors. The body control module (BCM) monitors the voltage on the signal circuit to determine the delay interval between the low speed wiper motor cycles.
If the wiper switch is moved from a longer delay interval to a shorter delay interval, the BCM will command an immediate wipe cycle and reset the delay timer to the shorter delay interval.
Additionally, intermittent wiper operation is vehicle speed sensitive. As vehicle speed is increased or decreased, the wiper interval will also increase or decrease.
Low Speed Operation
When the wiper switch is in the Low position, voltage is supplied through an internal resistor to the signal circuit. The body control module (BCM) monitors the windshield wiper switch signal 1 circuit and energizes the wiper 1 relay which will operate the windshield wiper motor. The wiper motor will operate at low speed, since the wiper 2 relay is de-energized. Low speed can also be commanded with a scan tool by commanding Wiper Relay Cmd. ON and OFF.
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper 1 and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper 1 relay switched output to the switched input of the wiper 2 relay through its contacts and out the switched output of the wiper 2 relay to the high speed circuit of the windshield wiper motor. The windshield wiper motor will operate at high speed. During HIGH speed wiper motor operation, the wiper switch signal circuit is at the LOW speed signal voltage, and the body control module (BCM) supplies redundant voltage to the wiper relay via the wiper diode.
Wiper/Washer System Components
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper 1 relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIPER/SW 10A fuse
• WIPER 25A fuse
Refer to Master Electrical Component List.
DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
DTC B3715 05: Front Wiper Relay Drive Circuit Short to Battery or Open
Your best bet , take it to a qualified repair shop.
You will need to diagnose this with a multi meter....on dark green terminal d at the wiper pulse board, with the wipers on any delay position, you should be reading .0005 Amps and 12 Volts and at the same time on the delay position one click below low(the fastest delay speed) you should be reading .0003Amps and 12V on terminal E gray wire, The purple wire (terminal C) should have 12V on high speed only. The yellow wire (terminal B) should have 12V when the key is on and the black wire (terminal A) should always be grounded....check all of that and we should be able to find your problem.
The Amperage should change on terminal E (the gray wire) with each position on the switch but the change will be very small. i.e. the first speed (longest delay) will read .000017 A, the second setting .00004 A and so on. Check that and let me know...(by the way, amps are checked in series with the connector so unplug it, place one probe in the connector and the other in the motor plug terminal. )
the dash lights is a lose ground or power connection the wipers could be a couple things there is a wiper relay that may be going bad or the wiper motor is going bad could even be both
If you are having problems with the wipers not wanting to park, that is usually the park switch inside the wiper motor. The low and interm speed settings could be the delay module which could also affect park. You may need a shop manual to troubleshoot the circuits.
Hi, The hesitation of the wipers in delay cycle is normal. You can twist the nob on the end of the arm to speed up or slow down the hesitation. If you are driving in a light mist and the wipers ran at normal speed most of the time the would be wiping a dry windshield. Chattering and bouncing. With the delay set at the right speed the wipers only go on every so often, No dry chattering. In a full rain just twist the knob past the delay cycle to get low or high speed from the wipers. Hope this helped you. Wayne
Wipers Froze in the ice
now i only have High Speed
no delay or low speed
Mine is a 2500HD
Low torque accelerating up hill and 2 to 3 seconds delay on acceleration.
turn on wipers in delay and sometimes they jump,skip and freeze.Turning them off and back on sometimes works and sometimes they don't come back to park position.
works fine on high and low speed but not on delay ?
×