This material may not be reproduced without the author’s consent. If a new one isn't too expensive, may want to try that now. If diagnosis is required on the multifunction switch, select model and "BCM". Slide out the ash tray to remove the two screws behind it, and then remove the ash tray. 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. Tools  |   Available at a price that is up to 40% less than comparable modular solutions in VXI or PXI. Place the Malibu's new multi-function switch in the column by hand. 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. Here are the factory instructions for disabling the air bag system: Alright, let's turn the page and get testing. The code fades an onboard LED (D4) in the multifunction shield using the analogWrite() function: 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. 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(-). According to the University of Washington, you should see a reading of less than 25 ohms. This simple Arduino sketch can be used to test the multifunction shield. Advertising - Do NOT follow this link or you will be banned from the site! Touch the probes to the copper terminals on the side of the switch. You should get a measurement of infinite resistance. One of the first symptoms of a problem with the combination switch assembly is a problem operating the turn signal. Turn the switch lever on and off. Unfortunately, the MFS has a fairly high failure rate. Circuit 5: Windshield Wiper Motor Low Speed Output. If you have found this video helpful, and you wish to donate to me, follow this link!! Remove the ‘AIR BAG’ fuse from the instrument panel fuse box. So, the focus of this article is to help you test and either eliminate the wiper switch or condemn it as bad. Note that the component may need to be isolated from other components in the circuit. The center brake light works. multifunction switch: CAUTION When performing service around the SIR system components or wiring, the SIR system MUST be disabled. Submitted: 8 years ago. 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 Check BCM input/output specification of multifunction switch using the GDS. Chrysler  |   To consult the present input/output value of BCM, "Current DATA". I'd look elsewhere and check a couple things first. If the specification is abnormal, replace the lamp or wiper switch. Connect the test machines to the first and last port. Select "Current data" and check the input/output condition of "Multifunction switch". No wonder it’s called the multifunction switch (MFS) these days. The Keysight 34980A is a flexible, reliable switching and data acquisition platform with more than 20 modules to help you customize your test system. This indicates that electrical continuity exists through the switch. I'd liek to test the pins for continuity before I go buy a new switch to make sure the switch is the problem. 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. 3. See also: Crankshaft Position Sensor (CKPS). Privacy Statement - As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. Do Not Sell My Personal Information -, By logging into your account, you agree to our. Right turn signal came on and would not shut off. Learn more click on the view product demo link above to see the Switch/Measure 10-tips videos Honda  |   Touch the negative lead to ground. Disclaimer. haynes manual about $15. Circuit 4: Ignition Battery Power (Wiper Fuse Input). its easy! Understanding the Hazard Switch In the Fig. Terms of Service - Working on a vehicle can be intimidating for non-mechanic types, but some tasks are very easy to do yourself. Turn the switch off and test again. multifunction switch available from autozone for $42. If you need to see what this tool looks like, you can see it here: Circuit 3: Windshield Wiper Motor High Speed Output. How can I test the multifunction switch? 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. 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). This article will help you to accomplish this. Use a Phillips screwdriver to remove the two screws located behind the cup holder, and then remove the cup holder itself. 1. My son has a 2003 Impala and replaced the multifunction switch less than a year ago. 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. Wiper and washer switch4. The Multi-Function Switch, that the wiper switch is a part of, has two connectors. 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. 2. Turn the ignition switch to the ‘Lock’ position and remove the key. Now, we're gonna' need to identify the circuits (wires) that we need to test. Turn the switch on. Lighting switch3. The multimeter can either be a digital one or an analog one. torx set also available from autozone for $9. Step 6 Re-connect the switch to its electrical connection and return the new or repaired switch to the steering column. 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. Heard some buzzing behind the steering wheel, so I figured it was the switch. See my blog http://goggansfamily-markmyword.blogspot.com/ for life inspiration.I was inspired by this video http://www.youtube.com/watch?v=MTYCbdlUchU . 4. If the circuit is open (the switch is in the OFF position), the DMM will not beep. Or condemn it as bad and: Disconnect how to test multifunction switch Yellow 2-way SIR connector at the core, a switch! List above, it 's bad, ignition and light switch vehicle can intimidating... Abnormal, replace the entire multifunction switch test - Driving home from I! Cleaned with contact cleaner and compressed air of the multimeter can either be a digital one or an analog.! 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