This material may not be reproduced without the author’s consent. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. To perform test on "Multifunction switch" outputs, select "Actuation test". To consult the present input/output value of BCM, "Current DATA". Archive - See my blog http://goggansfamily-markmyword.blogspot.com/ for life inspiration.I was inspired by this video http://www.youtube.com/watch?v=MTYCbdlUchU . requires security torx to remove. Advertising - If a new one isn't too expensive, may want to try that now. One connector is a Gray one and the other is Black. Test the Switch for Continuity . 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. The meter will apply a small voltage to make the semiconductor conduct and read that voltage on the screen. 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. If you have found this video helpful, and you wish to donate to me, follow this link!! Posted by Gary on May 07, 2014. Step 6 Re-connect the switch to its electrical connection and return the new or repaired switch to the steering column. Learn more click on the view product demo link above to see the Switch/Measure 10-tips videos if you go this route, try to find 2 or 3? So, the focus of this article is to help you test and either eliminate the wiper switch or condemn it as bad. Screw5. 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. Sadly, I got such a hampered multifunction shield, but a slice of thin film helped me to clear that issue. its easy! Remove the steering wheel as outlined in this section. Ford  |   Want Answer 0. Touch the negative lead to ground. Use a multi-meter in diode-test mode to confirm your findings. Use your hands to lift up the upper right-hand corner of the dash trim piece (as shown in Figure 1) and wor… 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. pin 2 - orange/yellow stripe - power at all times haynes manual about $15. You should get a measurement of infinite resistance. … Honda  |   If the specification is abnormal, replace the lamp or wiper switch. Steering column shaft2. Heard some buzzing behind the steering wheel, so I figured it was the switch. I just removed the multi-function switch. TEST 5: High Speed Circuit Resistance Test. O’Reilly Auto Parts has high-quality switches for many vehicles. Need wiring Diagram. Chrysler  |   The Keysight 34980A is a flexible, reliable switching and data acquisition platform with more than 20 modules to help you customize your test system. As you can see there is a TON of corrosion on almost everything. Right turn signal came on and would not shut off. Select "Current data" and check the input/output condition of "Multifunction switch". See also: Crankshaft Position Sensor (CKPS). First test: LED fade. Remove the screw holding the multi-function switch to the Malibu's steering column using a Phillips screwdriver. There are 3 parts to the wiper system The switch the bcm the wiring and motor 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. Once known as a turn signal or blinker switch, the multifunction switch lever now also controls headlights, high beams, emergency flashers, wipers and washers. multifunction switch: CAUTION When performing service around the SIR system components or wiring, the SIR system MUST be disabled. Failure to do so could result in possible air bag deployment, personal injury or unneeded SIR system repairs. I've not heard of it effecting the headlights, but maybe so. 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. 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  |   Contact Us - Circuit 5: Windshield Wiper Motor Low Speed Output. Don't worry, we don't need to test all of the wires to check the wiper switch function within the Multi-Function Switch. Bob . 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). It has been discussed around here before that the wiper motor park switch can mess with the intermittent. The tester should light up when the switch lever is in the ON position but should not light up when the switch … If diagnosis is required on the multifunction switch, select model and "BCM". 4. 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I'd look elsewhere and check a couple things first. I'd liek to test the pins for continuity before I go buy a new switch to make sure the switch is the problem. pin 1 - not used. I would see how cheap a wiper motor is from the junkyard vs. a new one. The multimeter can either be a digital one or an analog one. Turn the switch lever on and off. Turn the switch off and test again. Clean the variable resistor (if possible) or replace the entire multifunction switch. The position of the test leads is arbitrary. 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 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. Pick the wiring pigtail out of the multi-function switch by hand. How can I test the multifunction switch? Category: Chrysler. Lighting switch3. ... Is there a way to test the switch to see if it's bad? What will be the same will be the number of the circuits and their description. Cookie Policy - According to the University of Washington, you should see a reading of less than 25 ohms. One of the first symptoms of a problem with the combination switch assembly is a problem operating the turn signal. You may however, try to disassemble the MFS and try cleaning the contacts on the switch. If your multimeter displays battery voltage, your switch is getting power - continue to the next step. This will load the switch to its absolute capacity while only requiring two endpoints. 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. 1. 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. Wait 2 full minutes so that the air bag system is completely disabled. torx set also available from autozone for $9. All Rights Reserved. So, the focus of this article is to help you test and either eliminate the wiper switch or condemn it as bad. Privacy Statement - Submitted: 8 years ago. Testing to see if the wiper switch is bad or not is not that hard to do. 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. What Tools Do I Need To Test The Wiper Switch? This indicates that electrical continuity exists through the switch. The multifunction switch is an 11 pin connector the wires are as follows. The Multi-Function Switch, that the wiper switch is a part of, has two connectors. Discussion Starter • #1 • Oct 9, 2015. If you have to replace the multifunction switch it is quite easy. Components and Components Location Component (1) 1. GM  |   Probe the power supply wire you identified in the first step with the positive lead of the multimeter. 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. Pulled the switch out and cleaned with contact cleaner and compressed air. Body Electrical System. Touch the probes to the copper terminals on the side of the switch. The code fades an onboard LED (D4) in the multifunction shield using the analogWrite() function: If the circuit is open (the switch is in the OFF position), the DMM will not beep. Test the switch for continuity Driving home from work I applied my left turn signal. 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. Make sure the switch is in the off position. Multifunction Switch. My son has a 2003 Impala and replaced the multifunction switch less than a year ago. The combination (or multifunction) switch is an arm usually found on the left-hand side of the steering column. Turn the steering wheel so that the front wheels are pointing straight ahead. If the mechanism or electrical contacts that activates the turn signal lights wears out this may lead to issues with the turn signals. 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! Show More. Remove the ‘AIR BAG’ fuse from the instrument panel fuse box. Do Not Sell My Personal Information -, By logging into your account, you agree to our. This page attempts to explain how the four multi-function switches actually work – the Hazard switch, blinker switch, ignition and light switch. Connect the test machines to the first and last port. If you need to see what this tool looks like, you can see it here: Circuit 3: Windshield Wiper Motor High Speed Output. It's rare for the turn signal switch to fail but when it does, the most obvious symptom is that Remove the lower Steering Column filler panel and: Disconnect the Yellow 2-way SIR connector at the base of the steering column. Terms of Service - How To Test The Wiper Switch (Step by Step). 3. As a matter of fact, we only need to worry about testing a total of 3 wires. 1999 to 2016 Super Duty - Multifunction switch test - Driving home from work I applied my left turn signal. 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. Turn the switch on. Use a Phillips screwdriver to remove the two screws located behind the cup holder, and then remove the cup holder itself. Terms of Use Jeep  |   In this article, I'll show you how to do it with a multimeter. At the core, a pressure switch is the same as any other switch. Place the Malibu's new multi-function switch in the column by hand. Working on a vehicle can be intimidating for non-mechanic types, but some tasks are very easy to do yourself. Right turn signal came on and would not shut off. sec. Slide out the ash tray to remove the two screws behind it, and then remove the ash tray. If there is no voltage, check the headlight fuse and the circuit up to the switch. Wiper and washer switch4. 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(-). 2. Clicking this will make more experts see … Note that the component may need to be isolated from other components in the circuit. Test the new switch, all functions - wiper, hazard lights, turn signals, etc. Now, let’s find out how to test a pressure switch with a multimeter. Here are the factory instructions for disabling the air bag system: Alright, let's turn the page and get testing. Common Problems with the Multifunction Switch. The digital multimeter (DMM) beeps if a complete path (continuity) is detected. multifunction switch available from autozone for $42. Tools  |   About Us - 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. With a patch cable bridge 2 and 3, 4 and 5, etc. Understanding the Hazard Switch In the Fig. 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. The center brake light works. Connect a multimeter to the wiper contacts on the switch to check the resistance readings. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! The rear signal lights do not work and the front signal flash very fast The rear brake lights do not work. It controls your headlights, turn signals, and wipers, so if it wears out, it can disrupt the use of these components. Do NOT follow this link or you will be banned from the site! 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003. The wiper switch function within the Multi-Function Switch usually doesn't go bad. 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. Worn contacts may cause the turn sign… © 2011-2020 Abraham Torres-Arredondo No wonder it’s called the multifunction switch (MFS) these days. This simple Arduino sketch can be used to test the multifunction shield. 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. 47 Posts . Do you know which pins are for the right turn signal? Turn the ignition switch to the ‘Lock’ position and remove the key. As you can see from the list above, it's nothing that's gonna' break the bank. 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. Repair procedures. This article will help you to accomplish this. Available at a price that is up to 40% less than comparable modular solutions in VXI or PXI. Unfortunately, the MFS has a fairly high failure rate. Lift the multi-function switch out of the column by hand. These 3 circuits (wires) belong to the Gray connector. Start by tilting down the steering wheel and lowering the shifter, which will give you more room to remove the dash trim piece. Circuit 4: Ignition Battery Power (Wiper Fuse Input). Disclaimer. When the multifunction switch goes bad OR is going bad, usually the problem is eratic bahavior from the turn signals. Check BCM input/output specification of multifunction switch using the GDS. Now, we're gonna' need to identify the circuits (wires) that we need to test.