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My BH 6100 switches from high speed to low speed on its own. sometimes after an hour... sometimes just after minutes...what to do?

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

  • 12 Answers

SOURCE: I have high speed blower but no medium or low

It's likely a relay. I've often seen where the lower settings are ran through one relay and the higher setting ran through another because of the difference in amperage. I'd start there, the relays are often pretty cheap and a lot easier to replace than tearing the dash apart to change the switch.

Posted on Oct 09, 2009

SOURCE: need wiring diagram for speed control switch. Northern Tool doesnt have it

No diagrams here! Do an Internet search using Yahoo or Google, and check for diagrams available manufacturer's website.

Posted on May 12, 2015

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I have a 2009 gmc sierra, where is the wiper relay location.


The PCB wiper relays are soldered directly to circuit board inside the under hood fuse box.
The windshield wiper/washer switch signal circuits are inputs to the body control module (BCM) and the BCM controls wiper motor low speed operation, washer pump and high speed operation. The windshield wiper/washer switch is provided a low reference from the BCM and each of the switch signal circuits is supplied 12 volts through a resistor and monitored within the BCM. During LOW or INTERMITTENT operation the wiper switch low signal circuit is closed to the low reference circuit through a series of resistors within the switch assembly and the signal circuit voltage monitored by the BCM will depend on the switch contact location to the resistor assembly. During HIGH or WASH operation the high and wash switch signal circuits are closed directly to the low reference circuit within the switch assembly and nearly all the signal circuit voltage will be dropped across the BCM resistors. The BCM controls the wiper motor through the WIPER CONTROL PCB Relay and the WIPER SPEED PCB Relay. During any wiper motor function that uses low speed the BCM supplies the voltage to energize the WIPER CONTROL PCB Relay and battery voltage will be supplied from the WIPER CONTROL PCB Relay through the de-energized WIPER SPEED PCB Relay to the wiper motor low speed control circuit. During high speed wiper motor operation the WIPER CONTROL PCB Relay is energized as in low speed and the BCM provides a ground to energize the WIPER SPEED PCB Relay and the battery voltage is supplied to the wiper motor high speed control circuit. Wiper motor park operation is controlled by the BCM using an input from the park switch within the wiper motor assembly. The BCM supplies the park switch signal circuit 12 volts through a resistor then monitors the circuit. Whenever the wiper motor is out of the park position the park switch signal circuit is closed to ground and nearly all the signal circuit voltage will be dropped across the BCM resistor. When the wiper switch is turned to the OFF position while the wiper motor is somewhere in mid-cycle, the BCM will continue to operate the motor until the wipers reach the park position. If the ignition is turned OFF while the wipers are in mid-cycle, the wipers will stop immediately where they are and the BCM will park the wipers the next time the ignition is cycled ON.

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
Have it checked for DTC'S - diagnostic trouble codes .

The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a resistor ladder, and windshield washer switch signal circuit is used to determine washer operation.
The BCM controls the windshield wiper motor through two output controls, controlling two relays which determine the desired wiper speed, high or low.
Your best bet , take your vehicle to a qualified repair shop or dealer . Hooking up a factory scan tool to see what the wiper switch inputs to the BCM are correct and outputs to relays are good .

Feb 11, 2017 | GMC Cars & Trucks

1 Answer

How do I find out if the wipers on my 2006 H3 Hummeris on a relay?


The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper micro 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
• WIP/WASH 10A fuse
• WIPER 25A fuse

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper micro relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay switched output to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.

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 micro 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. Refer to Scan Tool Output Controls .
High Speed Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the wiper micro relay and wiper 2 relay coils. This energizes both relays and allows battery voltage from the wiper micro 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.

This info is out of hummer factory service manual !

Dec 10, 2016 | 2006 Hummer H3

1 Answer

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


?€¢
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

2 Answers

When you reconnect battery how much time does it take for cpu to program itself ?


All makes & models are different. You have to drive the car at several miles high speed, than several miles low speed & repeat the process. That usually covers most vehicle. But just drive normally at high & low speeds and soon enough you'll be good to go. Does not do the clock & radio for you. That your on your own.

Sep 19, 2015 | Cars & Trucks

1 Answer

Broan range hood QP130ssC only works on low speed no high speed


Sounds like the switch, a bad resistor would work on high because the high setting bypasses the resistor, and if it works on low, it's not the motor !

Jan 04, 2015 | Cars & Trucks

2 Answers

HOW DO YOU DISENGAGE 4WD 1997 PATHFINDER


Hi Diamond, These vehicles do sometimes have a problem in disengaging the 4 X 4. Start up and drive it backwards and forwards slowly (3 or 4 miles per hour will do). Gently put pressure on the lever in the direction of the 2 high and after some time it will change. (If nothing has been damaged inside the box, which is unlikely) Regards John

Aug 11, 2012 | 1997 Nissan Pathfinder

1 Answer

My ac cabbot run on high speed, it will cool sometimes i have to keep turning switch off and on. what causes this?


if cut off in low pressure switch add gas, and if cut in high pressure switch reduce gas or replace orifice tube vaccum the system and recharge gas

Jul 01, 2011 | 1994 GMC Safari

1 Answer

A/C compressor works intermittently


Hello< will try and help you.Try replacing the low pressure switch,and the high side compressor cut out switch,look on the low side for the low pressure switch(large line/hose).It will have to wires gong to it.The high side cut out switch will be on the high side line/hose,or in the back of compressor.If this doesn`t help Have the system pressures checked.If I can help anymore...roniecon@gmail.com

Jul 17, 2009 | 2000 Volkswagen Beetle

1 Answer

A/C suddenly blows hot air usually when idleing


it could be the a/c clutch is starting to go. They usually run ok for about an hour and then cut off. Sometimes you can shim the clutch so it is tighter, or just replaqce the clutch. Sometimes you have to remove the compressor to replace the clutch.

Jun 14, 2009 | 2004 Ford F150

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