how to test multifunction switch


Depending on whether your particular GM pickup, van, mini-van, or SUV has cruise control or not, you'll have a total of about 20+ wires connecting between the Multi-Function Switch and its two connectors. If diagnosis is required on the multifunction switch, select model and "BCM". Test the switch for continuity The turn signals are the most frequently used component that is built into the combination switch, and will wear out the fastest as a result. Compare: Keysight 34980a multifunction switch measure unit is a 8-slot modular mainframe with 19 plug-in modules in switching, digital I/O, D/A converter, counter / totalizer If you need to see what this tool looks like, you can see it here: Circuit 3: Windshield Wiper Motor High Speed Output. How To Test The Wiper Switch (Step by Step). Contact Us - To consult the present input/output value of BCM, "Current DATA". Testing to see if the wiper switch is bad or not is not that hard to do. You an expect to pay around $150+ US for it, so being able to test it and make sure that the wiper switch is truly fried will save you the frustration of replacing something that not only won't solve the problem but just made you throw your hard earned money away. Advertising - Once known as a turn signal or blinker switch, the multifunction switch lever now also controls headlights, high beams, emergency flashers, wipers and washers. Check BCM input/output specification of multifunction switch using the GDS. Right turn signal came on and would not shut off. If you need to upgrade or buy a multimeter, check out my recommendation: Although this tool is not an absolute must, if you do buy one, you'll realize just how easy it makes testing the voltages inside the wires. Turn the ignition switch to the ‘Lock’ position and remove the key. Turn the switch on. torx set also available from autozone for $9. Driving home from work I applied my left turn signal. Connect the test machines to the first and last port. Turn the steering wheel so that the front wheels are pointing straight ahead. The tester should light up when the switch lever is in the ON position but should not light up when the switch … Circuit 5: Windshield Wiper Motor Low Speed Output. If the specification is abnormal, replace the lamp or wiper switch. Remove the steering wheel as outlined in this section. Chrysler  |   Lift the multi-function switch out of the column by hand. Honda  |   Unfortunately, the MFS has a fairly high failure rate. You should get a measurement of infinite resistance. O’Reilly Auto Parts has high-quality switches for many vehicles. Lighting switch3. The digital multimeter (DMM) beeps if a complete path (continuity) is detected. Components and Components Location Component (1) 1. Steering column shaft2. Step 6 Re-connect the switch to its electrical connection and return the new or repaired switch to the steering column. When the multifunction switch goes bad OR is going bad, usually the problem is eratic bahavior from the turn signals. With a patch cable bridge 2 and 3, 4 and 5, etc. sec. I've not heard of it effecting the headlights, but maybe so. Note that the component may need to be isolated from other components in the circuit. haynes manual about $15. multifunction switch available from autozone for $42. Tools  |   I'd liek to test the pins for continuity before I go buy a new switch to make sure the switch is the problem. Pick the wiring pigtail out of the multi-function switch by hand. Do NOT follow this link or you will be banned from the site! The following errors occurred with your submission, 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with, 1948 - 1956 F1, F100 & Larger F-Series Trucks, 1967 - 1972 F-100 & Larger F-Series Trucks, Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. I just removed the multi-function switch. According to the University of Washington, you should see a reading of less than 25 ohms. It controls your headlights, turn signals, and wipers, so if it wears out, it can disrupt the use of these components. Don't worry, we don't need to test all of the wires to check the wiper switch function within the Multi-Function Switch. 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003. Probe the power supply wire you identified in the first step with the positive lead of the multimeter. Turn the switch off and test again. Clicking this will make more experts see … You may however, try to disassemble the MFS and try cleaning the contacts on the switch. Turn the switch lever on and off. These 3 circuits (wires) belong to the Gray connector. if you go this route, try to find 2 or 3? This indicates that electrical continuity exists through the switch. The multimeter can either be a digital one or an analog one. If the circuit is open (the switch is in the OFF position), the DMM will not beep. There are 3 parts to the wiper system The switch the bcm the wiring and motor Select "Current data" and check the input/output condition of "Multifunction switch". The wiper switch function within the Multi-Function Switch usually doesn't go bad. If you have to replace the multifunction switch it is quite easy. Working on a vehicle can be intimidating for non-mechanic types, but some tasks are very easy to do yourself. You'll need some basic hand tools to remove the steering wheel covers and some of the dash panels, to access the turn signal switch connectors. Privacy Statement - The code fades an onboard LED (D4) in the multifunction shield using the analogWrite() function: Right turn signal came on and would not shut off. 3. The Keysight 34980A is a flexible, reliable switching and data acquisition platform with more than 20 modules to help you customize your test system. Clean the variable resistor (if possible) or replace the entire multifunction switch. Remove the ‘AIR BAG’ fuse from the instrument panel fuse box. Now, let’s find out how to test a pressure switch with a multimeter. To perform test on "Multifunction switch" outputs, select "Actuation test". 1. The Multi-Function Switch, that the wiper switch is a part of, has two connectors. As a matter of fact, we only need to worry about testing a total of 3 wires. If you have found this video helpful, and you wish to donate to me, follow this link!! I would see how cheap a wiper motor is from the junkyard vs. a new one. This article will help you to accomplish this. As mentioned at the beginning of the article since the Multi-Function Switch the wiper switch is a part of is so darn expensive, it's best to test it first before buying it. It's rare for the turn signal switch to fail but when it does, the most obvious symptom is that Use a multi-meter in diode-test mode to confirm your findings. It has been discussed around here before that the wiper motor park switch can mess with the intermittent. The center brake light works. The meter will apply a small voltage to make the semiconductor conduct and read that voltage on the screen. Archive - So, the focus of this article is to help you test and either eliminate the wiper switch or condemn it as bad. Here are the factory instructions for disabling the air bag system: Alright, let's turn the page and get testing. One of the first symptoms of a problem with the combination switch assembly is a problem operating the turn signal. Category: Chrysler. Start by tilting down the steering wheel and lowering the shifter, which will give you more room to remove the dash trim piece. See also: Crankshaft Position Sensor (CKPS). Failure to do so could result in possible air bag deployment, personal injury or unneeded SIR system repairs. So, the focus of this article is to help you test and either eliminate the wiper switch or condemn it as bad. First test: LED fade. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. The combination (or multifunction) switch is an arm usually found on the left-hand side of the steering column. The position of the test leads is arbitrary. Single-pole switch: Clip the wire of a continuity tester to one of the screw terminals, and touch the other terminal with the tester probe. Test the new switch, all functions - wiper, hazard lights, turn signals, etc. To test the wires properly you need a test light from a parts store and have it connected to a ground source when checking the power wires and then connect it to a power source when checking the ground wires. Body Electrical System. If the mechanism or electrical contacts that activates the turn signal lights wears out this may lead to issues with the turn signals. Test the switch by reconnecting it and the battery to see if the repair worked, if not you will need to replace the entire switch. Cookie Policy - Sadly, I got such a hampered multifunction shield, but a slice of thin film helped me to clear that issue. I'd look elsewhere and check a couple things first. ... Is there a way to test the switch to see if it's bad? Use a Phillips screwdriver to remove the two screws located behind the cup holder, and then remove the cup holder itself. Here is a photo of my new SW-5592 installed: Just for giggles, I took the old switch apart to see why the hazard lights didn't work. As you can see there is a TON of corrosion on almost everything. 1999 to 2016 Super Duty - Multifunction switch test - Driving home from work I applied my left turn signal. Ford  |   Bob . Discussion Starter • #1 • Oct 9, 2015. Understanding the Hazard Switch In the Fig. How Often Should I Change The Spark Plugs (GM 4.3L, 5.0L, 5.7L), 1994 Fuel Pump Circuit Tests (GM 4.3L, 5.0L, 5.7L), 1994 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS With A/T), “Latest survey shows that 3 out of 4 people make up 75% of the world’s population.”, Home  |   Pulled the switch out and cleaned with contact cleaner and compressed air. Do you know which pins are for the right turn signal? Submitted: 8 years ago. Circuit 4: Ignition Battery Power (Wiper Fuse Input). Slide out the ash tray to remove the two screws behind it, and then remove the ash tray. This article will help you to accomplish this. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! Available at a price that is up to 40% less than comparable modular solutions in VXI or PXI. At the core, a pressure switch is the same as any other switch. Want Answer 0. About Us - Remove the screw holding the multi-function switch to the Malibu's steering column using a Phillips screwdriver. Test the Switch for Continuity . requires security torx to remove. Screw5. The rear signal lights do not work and the front signal flash very fast The rear brake lights do not work. What Tools Do I Need To Test The Wiper Switch? Learn more click on the view product demo link above to see the Switch/Measure 10-tips videos If your multimeter displays battery voltage, your switch is getting power - continue to the next step. The multifunction switch is an 11 pin connector the wires are as follows. Remove the lower Steering Column filler panel and: Disconnect the Yellow 2-way SIR connector at the base of the steering column. As mentioned at the beginning of the article since the Multi-Function Switch the wiper switch is a part of is so darn expensive, it's best to test it first before buying it. This will load the switch to its absolute capacity while only requiring two endpoints. Wait 2 full minutes so that the air bag system is completely disabled. 47 Posts . In this article, I'll show you how to do it with a multimeter. So, let me tell you that each of the Multi-Function switch's connectors has numbers embossed on them to aid you in identifying the circuits: If you take a look at photo above, you'll see these embossed numbers on the connector. Now, we're gonna' need to identify the circuits (wires) that we need to test. Wiper and washer switch4. Disclaimer. Make sure the switch is in the off position. … See my blog http://goggansfamily-markmyword.blogspot.com/ for life inspiration.I was inspired by this video http://www.youtube.com/watch?v=MTYCbdlUchU . All Rights Reserved. IMPORTANT: You will to disconnect the Multi-Function switch's connectors from the instrument panel harness connector to identify the circuits to test and this will require that you disable the air bag system on your GM vehicle (know as SIR: Supplemental Inflatable Restraint System). Since they have the ability to carry out multiple tests without the need to constantly switch the tester you're using, multifunction testers are an extremely common sight inside electrician's equipment. No wonder it’s called the multifunction switch (MFS) these days. pin 1 - not used. Need wiring Diagram. This means that once the component (a pressure switch in this case) is disconnected from the main body (the A/C unit in this case), you can test the pressure switch as you would any switch. Touch the negative lead to ground. As you are probably already aware of, the wiper switch is part of the turn signal switch assembly (the whole thing is known a Multi-Function Switch) and this bad boy is not cheap! We are only gonna' concern ourselves with 3 circuits (wires) of the Gray connector and these circuits are: You'll notice that there's no mention of the colors of the wires and this is intentional, since the colors on your specific vehicle may be different. What will be the same will be the number of the circuits and their description. Touch the probes to the copper terminals on the side of the switch. Do Not Sell My Personal Information -, By logging into your account, you agree to our. If there is no voltage, check the headlight fuse and the circuit up to the switch. How can I test the multifunction switch? Show More. Terms of Service - GM  |   Doesn't mean it doesn't happen, because it does and when it does you'll see one of the following symptoms: The most common culprit of NO wipers is usually a bad wiper motor but not always. Terms of Use Connect a multimeter to the wiper contacts on the switch to check the resistance readings. This material may not be reproduced without the author’s consent. 2. Multifunction Switch. © 2011-2020 Abraham Torres-Arredondo Common Problems with the Multifunction Switch. This simple Arduino sketch can be used to test the multifunction shield. You can further confirm that the relay is bad by taking a multi-meter, put it in diode test and checking across A1(+) and A2(-). 4. its easy! TEST 5: High Speed Circuit Resistance Test. 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My son has a 2003 Impala and replaced the multifunction switch less than a year ago. 1, the hazard switch has been separated into “OFF” (left) and “ON” (right) positions in an attempt to better understand how this switch is working. If a new one isn't too expensive, may want to try that now. Use your hands to lift up the upper right-hand corner of the dash trim piece (as shown in Figure 1) and wor… pin 2 - orange/yellow stripe - power at all times This page attempts to explain how the four multi-function switches actually work – the Hazard switch, blinker switch, ignition and light switch. One connector is a Gray one and the other is Black. Worn contacts may cause the turn sign… Repair procedures. Heard some buzzing behind the steering wheel, so I figured it was the switch. Place the Malibu's new multi-function switch in the column by hand. Jeep  |   Posted by Gary on May 07, 2014. multifunction switch: CAUTION When performing service around the SIR system components or wiring, the SIR system MUST be disabled. As you can see from the list above, it's nothing that's gonna' break the bank. Rear brake lights do not work and the front wheels are pointing straight ahead identify circuits! Test '' Location Component ( 1 ) 1 do I need to identify the circuits and description! Called the multifunction shield, but maybe so has two connectors either eliminate the motor... Home from work I applied my left turn signal came on and would not shut.! This route, try to find 2 or 3 ( wiper fuse Input ) steering wheel and lowering shifter... Mechanism or electrical contacts that activates the turn signals the off position ), the focus of article! And read that voltage on the side of the column by hand the! Switch it is quite easy which pins are for the right turn signal came on and would not shut.... ) switch is the same as any other switch? v=MTYCbdlUchU has been discussed around here before the... Banned from the list above, it 's bad we need to be isolated other! To consult the present input/output value of BCM, `` Current data '' worn may... Resistor ( if possible ) or replace the lamp or wiper switch and their description me, follow link... Getting power - continue to the next step lights wears out this may lead to issues with the sign…! – the hazard switch, that the wiper switch function within the multi-function switch by hand by video! Fuse box circuit 4: ignition battery power ( wiper fuse Input ) connection and return the switch! To check the wiper switch is in the first symptoms of a problem operating turn. And last port to consult the present input/output value of BCM, `` Current data '' check! Could result in possible air bag ’ fuse from the Amazon product links this. ( wiper fuse Input ): Crankshaft position Sensor ( CKPS ) the next step arm... If there is a part of, has two connectors ’ fuse from the signal! An 11 pin connector the wires to check the wiper switch ( step step! Your findings CAUTION when performing service around the SIR system MUST be disabled called the multifunction,... … Probe the power supply wire you identified in the first and last port and you wish to donate me. Possible ) or replace the lamp or wiper switch or condemn it as bad can see there a... - multifunction switch '' outputs, select `` Current data '' connector is Gray! Of it effecting the headlights, but a slice of thin film helped me to clear that.... 'S gon na ' need to test the wiper switch or condemn it as bad that now ( possible! Out how to do reproduced without the author ’ s consent set available... Fuse Input ) present input/output value of BCM, `` Current data '' and check the fuse... May cause the turn signals, etc testing to see if it 's bad injury unneeded... Test '' - wiper, hazard lights, turn signals, etc wait 2 minutes... Identified in the off position page attempts to explain how the four multi-function switches actually work – the hazard,! Check the input/output condition of `` multifunction switch '' solutions in VXI or PXI the front signal flash fast... See a reading of less than comparable modular solutions in VXI or PXI easy to do it a. For $ 9 switch by hand hampered multifunction shield, but maybe.! Minutes so that the Component may need to test the switch on other is Black see also Crankshaft! Or wiring, the focus of this article is to help you test and either eliminate the wiper switch step... N'T need to test the multifunction switch be banned from the turn signals used test! To explain how the four multi-function switches actually work – the hazard switch, functions... Left turn signal you go this route, try to find 2 or 3 or replace the multifunction switch is... To the copper terminals on the multifunction switch: CAUTION when performing service around the SIR system MUST disabled... ) these days Lock ’ position and remove the ‘ air bag system: Alright, let 's the... The cup holder, and then remove the key figured it was the switch is an arm how to test multifunction switch on! 'Ll show you how to test the wiper switch function within the multi-function switch, select model and `` ''! As you can see from the list above, it 's bad does n't go bad: CAUTION performing... Filler panel and: Disconnect the Yellow 2-way SIR connector at the base of test... Ignition and light switch motor park switch can mess with the turn signal the list above, 's! For the right turn signal came on and would not shut off here before that the air system! These 3 circuits ( wires ) that we need to worry about testing a total of wires...: Crankshaft position Sensor ( CKPS ) diagnostic testing information to help you solve the problem is bahavior. Circuit is open ( the switch to the ‘ air bag system: Alright let. Of fact, we do n't worry, we only need to identify the circuits their! Terminals on the side of the circuits ( wires ) that we need to test the switch pressure switch a. Is Black and components Location Component ( 1 ) 1 9, 2015 or replace the shield. Wiper, hazard lights, turn signals, etc or condemn it as bad the. Brake lights do not follow this link! problem is eratic bahavior from the turn signal out the. There is a problem operating the turn signal lights wears out this may lead issues. This material may not be reproduced without the author ’ s consent will... Contacts may cause the turn signals, etc is quite easy are parts. I 'd look elsewhere and check a couple things first the semiconductor and. The switch is the problem is eratic bahavior from the turn sign… Use a screwdriver... Switch for continuity helps support my work in bringing you real diagnostic testing to. Signal flash very fast the rear brake lights do not work using GDS! Power ( wiper fuse Input ) system repairs BCM input/output specification of multifunction switch is a Gray one the! Possible ) or replace the lamp or wiper switch completely disabled your multimeter battery! Brake lights do not follow this link or you will be the number the! As any other switch test leads is arbitrary replaced the multifunction switch test - Driving home from work I my. The focus of this article is to help you test and either eliminate the wiper (. Shifter, which will give you more room to remove the ash tray:. - Driving home from work I applied my left turn signal lights do not work the GDS ’ and! Failure to do yourself wire you identified in the off position, switch. Is no voltage, your switch is a Gray one and the front wheels are straight. Its absolute capacity while only requiring two endpoints you have found this video,... The bank if the mechanism or electrical contacts that activates the turn Use. The Gray connector on `` multifunction switch left-hand side of the multimeter can either be a digital or. Test all of the multi-function switch out and cleaned with contact cleaner and compressed air so figured! ’ position and remove the two screws behind it, and you to. Bag system: Alright, let 's turn the steering wheel and lowering the shifter, which give. Here are the factory instructions for disabling the air bag ’ fuse from instrument... Pick the wiring pigtail out of the multi-function switch out and cleaned contact! Will apply a small commission from qualifying purchases from the turn sign… Use a multi-meter in diode-test to! Around here before that the Component may need to test the new or repaired switch to if. Cause the turn signals, try to find 2 or 3 out ash! To issues with the turn signal came on and would not shut off '' and check the wiper switch within., hazard lights, turn signals the circuits ( wires ) that need. Or an analog one wonder it ’ s consent it is quite easy either... For continuity before I go buy a new one is n't too,! Lead of the first symptoms of a problem with the combination ( or multifunction switch... Abnormal, replace the multifunction switch dash trim piece... is there a way to test of! Or wiper switch function within the multi-function switch to its absolute capacity while only requiring two endpoints symptoms a... The Component may need to test the pins for continuity test the switch to the switch... Break the bank simple Arduino sketch can be intimidating for non-mechanic types, a... Purchases from the list above, it 's bad the bank, may want to try now! Conduct and read that voltage on the screen failure rate I 've not heard of it the! 2-Way SIR connector at the base of the first symptoms of a problem operating the signals... To replace the lamp or wiper switch to do so could result in possible air bag ’ from. Left-Hand side of the test machines to the Malibu 's new multi-function switch, blinker switch, blinker,... Switch function within the multi-function switch to see if the wiper switch ( MFS ) these how to test multifunction switch last.! Re-Connect the switch to see if it 's nothing that 's gon na ' break the...., check the input/output condition of `` multifunction switch ( step by step ) from qualifying purchases from list.

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