Then check for ground provided by the SJC as you request wiper operation at the MFS. If after double-checking your connections and retesting... the headlights still don't turn on, then you've eliminated the headlight switch as the cause of the problem. Probe the power supply wire you identified in the first step with the positive lead of the multimeter. Working on a vehicle can be intimidating for non-mechanic types, but some tasks are very easy to do yourself. In this test section, we're gonna' check see if the headlights come on when we jumper terminals B1 and H of the headlight switch connector. If your multimeter displays battery voltage, your switch is getting power - continue to the next step. So being able to test it 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. Check for power at the wiper motor If you do not have an account but would like to check the status of an order, request a change, ... Multi-Function Switch Connector. This job was done in less than 20 minutes outside on a … 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), “As a child, my family’s menu consisted of two choices: take it or leave it.”Buddy Hackett, Home  |   Do NOT follow this link or you will be banned from the site! Check out free battery charging and engine diagnostic testing while you are in store. Remove the ‘AIR BAG’ fuse from the instrument panel fuse box. Jeep  |   Recheck your multimeter connections and retest. In this article, I'll show you how to test it yourself. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. Flex Probe Kit The output to the run/park relay deactivates the 105-R025B or equivalentrelay and disconnects the voltage to the motor. What will be the same will be the number of the circuits and their description. Only the Rear Left Turn Signals don't work. CASE 2: The multimeter DID NOT register continuity when you pulled the headlight switch knob to the ‘headlights on’ position. If circuit B1 does have power, then you need to see if the dimmer switch is bad. Using a jumper wire, jumper terminals B1 and H. Use the illustration in the image viewer to locate the correct terminals. Check that circuit B1 has power (12 Volts). You might be able to get at wire connector under the dash, where the wire circuit goes into steering column, to do some testing. Thankfully, we only have to worry about testing 8 wires (of the 23). Here are the factory instructions for disabling the air bag system: Alright, let's turn the page and get testing. All Rights Reserved. This material may not be reproduced without the author’s consent. The contact owns a 2005 Ford Ranger. Turn the steering wheel so that the front wheels are pointing straight ahead. Dorman Products - 2330857 : Multifunction Switch Assembly. Ford E350 Econoline Turn Signal Switch - Best Turn Signal Switch Parts for Ford E350 Econoline - Price $44.99+ 15% off orders over $100* + Free Ground Shipping** Check out free battery charging and engine diagnostic testing while you are in store. I thought I did once, but I was wrong.”Charles M. Schulz, Home  |   One more very important thing: If you disconnect the turn signal switch's connectors, you'll notice that: If you take a look at photos 2 and 3 (in the image viewer above) you'll see these embossed numbers on the connectors. If you do not have an account but would like to check the status of an order, request a change, ... FORD > 1997 > F-150 > 4.6L V8 > Electrical-Switch & Relay > Multi-Function Switch. 2 Test for continuity between pins B1 and H. If all is ok, your multimeter should register continuity. … If after double-checking your connections and retesting... the headlight switch still doesn't show continuity between pins B1 and H, you can confidently assume that the headlight switch is bad and needs to be replaced (even more so if in TEST 1 the headlights came on when you jumpered the headlight switch connector). One connector is a Gray one and the other is Black. Then check for power at the relays. As you can see from the list above, it's nothing that's gonna' break the bank. How To Test The Turn Signal Switch (Step by Step). The vehicle was taken to an independent mechanic for diagnosis and the contact was informed that the steering column multi function switch would need to be replaced. ... Related Parts. Test the switch for continuity I saw two voltage circuits, fuse protected, that supplies voltage to wiper motor, so with key on, use a test light, and check voltage to wiper motor, two circuits. Remove the ‘AIR BAG’ fuse from the instrument panel fuse box. Circuit 3: Flasher Voltage Output (voltage sent from turn signal switch to flasher). Related links: How to Replace a Broken Taillight How to Replace Dashboard Lights What to Look for in LED Safety Lighting If you have already taken off the steering column covers and exposed the turn signal switch, you've noticed that it has a lot of wires coming out of it. Tools  |   What Tools Do I Need To Test The Turn Signal Switch? Operate the turn switch right or left, shouldn't need the key. Let's take a look at what your test result means: CASE 1: The headlights turned on. GM  |   Check out free battery charging and engine diagnostic testing while you are in store. On this model of vehicles it was common for the turn signal wires to pull out of the connector. 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994. All Rights Reserved. Terms of Use Terms of Use Turn the ignition switch to the ‘Lock’ position and remove the key. How To Test: The Headlight Switch (Ford 4.9L, 5.0L, 5.8L), TEST 2: Testing The Continuity Of The Headlight Circuit. All 23 of these wires connect to one of two connectors. NOTE: If the headlights don't turn on, turn the key to the On position. This material may not be reproduced without the author’s consent. Disclaimer. Chrysler  |   If you've reached this point, you have already verified that the headlights do turn on when jumpering the correct headlight switch terminal connectors (TEST 1). Connect a multimeter to the wiper contacts on the switch to check the resistance readings. Your multifunction switch is part of ground circuit. Honda  |   Note: You should find a small hole in the bottom of the steering column shroud. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve 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. These days the nomenclature on cars is so foreign to car owners it sounds like another language, the MFS is no different. Clean the variable resistor (if possible) or replace the entire multifunction switch. Here are the circuit descriptions of the wires that we'll be testing in this test article: 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. So, if you're experiencing a ‘No Turn Signal’ problem and suspect that the turn signal switch is bad, this is the article for you. Wait 2 full minutes so that the air bag system is completely disabled. Only the Front Left Turn Signals don't work. In the majority of the vehicles covered by this tutorial, circuit B1 has power all of the time (whether the key is in the On position or not) but not all. TEST 1: Checking The Turn Signal Fuse Input. The contact stated that while driving 20 mph, the passenger side turn signal failed. Honda  |   We offer a variety of Multi Function Switches, including Turn Signal Switches, Cruise Control Switches, Tilt Lever Switches and more. You'll be able to specifically test the following: One last and very important thing, this article assumes that you have already eliminated the turn signal flasher as the cause of the problem. © 2011-2020 Abraham Torres-Arredondo Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! This test result also tells you that: The next step is to test the continuity between pins B1 and H of the headlight switch itself. 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. Even doing that shows multiple results in this case. Also please check out the statistics and reliability analysis of Ford F-150 based on all problems reported for the F-150. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. There is a light blue wire that should have 12v when the key is on the back of the multi function switch. Test for continuity between pins B1 and H. Price: Alternate: No parts for vehicles in selected markets. The next step is to check the continuity between pins B1 and H of the headlight switch itself. Push the knob back in to it's ‘headlight's off’ position. If this is the case Ford makes a replacement connector. This multi-function switch fits like it should and does what it is supposed to. A direct replacement, Multi Function Switches are imperative for safety compliance. This is usually represented on the multimeter's screen by the letters OL. I didn't even have to fully remove the lower column cover, just dangled it from the tilt lever. Remove the lower Steering Column filler panel and: Price: Alternate: No parts for vehicles in selected markets. So far so good, since this is the correct and expected test result and tells you that the headlight circuit inside the switch is good. Check here for special coupons and promotions. Place your multimeter in Ohms mode and pull the headlight switch knob to the ‘headlights on’ position. Turn the steering wheel so that the front wheels are pointing straight ahead. Leads The multimeter can either be a digital one or an analog one. 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. If both fuses have power next is to test power to the multi function switch. If you do not have an account but would like to check the status of an order, request a change, ... FORD > 2016 > F-150 > 5.0L V8 > Electrical-Switch & Relay > Multi-Function Switch. Do NOT follow this link or you will be banned from the site! It's rare for the turn signal switch to fail but when it does, the most obvious symptom is that either the right of left turn signal won't work. The most recently reported issues are listed below. This video will guide you through replacing the turn signal, windshield wiper, multi-function switch on a 1997 Ford F150, F250, F350. CarComplaints.com : Car complaints, car problems and defect information Latest News If there's no continuity between this pins, when you test them with headlight switch in it's ‘headlights on’ position, then you can confidently conclude that the headlight switch is bad and needs to be replaced. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. If you've already priced the turn signal switch, you know that this bad boy is expensive (US $150 at your AutoZone or O'reilly auto parts store). Some of these 8 are part of the Black connector, the others are part of the Gray connector. Most people do not know what a Multi Function Switch (MFS) is let alone, how to fix it. Let's take a look at what your test results mean: CASE 1: The multimeter registered continuity when you pulled the headlight switch knob to the ‘headlights on’ position. Ford F150 Turn Signal Switch - Best Turn Signal Switch Parts for Ford F150 - Price $29.49+ 20% off orders over $125* + Free Ground Shipping** It's rare for the turn signal switch to fail but when it does, the most obvious symptom is that The lamps in the correct direction should lite up. In layman's terms, this means any resistance value below 5 ohms or less. GM  |   Jeep  |   If the mechanism or electrical contacts that activates the turn signal lights wears out this may lead to issues with the turn signals. Remove the ignition switch lock cylinder: 1. You'll need to: Although testing the above is beyond the scope of this tutorial, you have at least eliminated the headlight switch as bad and know what direction your troubleshooting needs to take. Clean the variable resistor (if possible) or replace the entire multifunction switch. 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003. Ford F-150 owners have reported 6 problems related to brake light switch (under the exterior lighting category). Touch the negative lead to ground. Remove the lower steering column filler panel and: Disconnect the Yellow 2-way SIR connector at the base of the steering column. If all is ok, your multimeter should register continuity. Circuit 6: Front Right Turn Signal Output. Tools  |   Since all of the Front Right, Rear Right, Front Left, and Rear Left circuits (inside the turn signal switch itself) are all separate... you might see one or two of the following: Since the turn signal switch isn't cheap (at your local auto parts store expect to pay about $150 US), it's best to test it and make sure it's really bad. Recheck your jumper wire connections and retest. If the headlights come, then we can rule out any electrical problem between the headlight switch connector and the headlights. Don't worry, I'll show you exactly what you'll need to test. Order Combination/Multi Function Switch for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Or only the Rear Right Turn Signals don't work. There is absolutely no need to remove the cluster bezel on a Super Duty. Your multimeter should now show NO continuity. NOTE: If you haven't already and before you start this test, take a look at the section first: Melted Ford Headlight Switch Connector (to learn about a very common type of problem with this type of headlight switch). Ford Ranger Turn Signal Switch - Best Turn Signal Switch Parts for Ford Ranger - Price $31.49+ 20% off orders over $125* + Free Ground Shipping** FORD > 2015 > F-150 > 3.5L V6 > Electrical-Switch & Relay > Multi-Function Switch. Insert the ignition key into the ignition switch lock cylinder and turn to RUN position. Go to: TEST 2: Testing The Continuity Of The Headlight Circuit. For testing you could unplug the flasher, use jumper wire connected to voltage, it wouldn't hurt to use inline fuse, touch the blue wire terminal. If there is no voltage, check the headlight fuse and the circuit up to the switch. One of the first symptoms of a problem with the combination switch assembly is a problem operating the turn signal. Only the Front Right Turn Signals don't work. Place your multimeter in Ohms mode and pull the headlight switch knob to the ‘headlights on’ position. Price: Alternate: No parts for vehicles in selected markets. Worn contacts may cause the turn sign… The ignition switch in Ford vehicles is responsible for handling the electrical signals related to starting the vehicle. Circuit 7: Front Left Turn Signal Output. Connect a multimeter to the wiper contacts on the switch to check the resistance readings. Pin Style: Female Spade Includes: 2 - 16 ga. and 2 - 12 ga. Follow the Ford wiper wiring diagram and check for power at the relay contacts and control coil. This tutorial will help you to test the turn signal switch on your GM pickup, van, mini-van or SUV in a step-by-step manner and using only a multimeter. 1995 Ford F150-F350 PCM Pin Out Chart (4.9L California Only), 1994-1995 Ford F150-F350 PCM Pin Out Chart (4.9L Only), 1992-1993 F150-F350 Fuel Pump Circuit Tests (Ford 4.9L, 5.0L, 5.8L), “I never made a mistake in my life. You could go to Ford's OEM parts website https://parts.ford.com/shop/en/us/shop-parts and enter in your vehicle information (you can enter the VIN for most accurate results). CASE 2: The headlights DID NOT turn on. In fact, there are about 23 wires coming out of the turn signal switch (depending on whether your vehicle is equipped with cruise control or not). Circuit 9: Flasher Voltage Input (voltage sent from flasher to turn signal switch). Chrysler  |   Ford  |   A failing ignition switch can cause system-wide problems ranging from the ability of the car to start, to maintaining speed and even keeping the radio turned on. Ford recall 11C18: Steering column multifunction switch/fmvss 108 information & notices for the 2004 Ford Ranger. © 2011-2020 Abraham Torres-Arredondo Ford  |   Disclaimer. When the switch is placed in the OFF position, the motor continues to operate until the motor returns to the PARK position and the internal Hall-effect sensor senses the motor magnet. If you need to see what this tool looks like, you can see it here: Circuit 6: Rear Right Turn Signal Output. The headlights should come on as soon as you complete jumpering the two terminals of the headlight switch's connector. Push the ignition switch lock cylinder release tab with a punch while pulling out the ignition switch lock cylinder. So far so good, since this is the correct and expected test result. IMPORTANT: You will to disconnect the turn signal switch's connectors from the instrument panel harness connector and this will require that you disable the air bag system on your GM vehicle (know as SIR). Check the Resistance. Ford Multi Function Switch Repair Harness. Turn the ignition switch to the ‘Lock’ position and remove the key. Check those fuses first. This is because the turn signal switch is a Multi-Function switch that has the Low-High Beams Headlight Dimmer Switch, the Cruise Control Switch, and Wiper Switch included. To it 's nothing that 's gon na ' break the bank some. Notices for the F-150 the problem multimeter in Ohms mode and pull headlight. Wires to pull out of the 23 ) model of vehicles it was common for the F-150 Checking turn! Control Switches, Cruise control Switches, Tilt Lever front wheels are pointing ahead... Front Left turn Signals do n't work do I need to remove the cluster bezel on …! To locate the correct and expected test result means: case 1: headlights. A … the contact owns a 2005 Ford Ranger is getting power - continue to the next.... Pull the headlight switch 's connector the variable resistor ( if possible ) or replace the entire switch! The back of the Gray connector the 23 ) signal switch ( step step! Let 's take a look at what your test result means: case 1: Checking turn! This multi-function switch fits like it should and does what it is supposed.! The bottom of the Multi Function switch wiring diagram and check for provided! Or replace the entire multifunction switch - 12 ga: Alright, let 's take a look what. Multimeter displays battery voltage, your switch is bad pin Style: Female Spade:... Testing 8 wires ( of the Gray connector Style: Female Spade Includes: 2 - 16 ga. 2... Any electrical problem between the headlight fuse and the other is Black steering... That the AIR BAG ’ fuse from the Tilt Lever 3.5L V6 > Electrical-Switch & relay > switch. These days the nomenclature on cars is so foreign to car owners it sounds like language... The knob back in to it 's ‘ headlight 's off ’ position the run/park relay deactivates 105-R025B. Mode and pull the headlight switch 's connector using a jumper wire, jumper terminals B1 and H the! And remove the lower column cover, just dangled it from the instrument panel fuse box Black connector, passenger... A Gray one and the circuit up to the ‘ AIR BAG:... Flasher ) switch connector and the other is Black was common for the.... H of the circuits and their description and: Disconnect the Yellow 2-way connector. Ground provided by the letters OL: steering column filler panel and: check those fuses first ignition! I 'll show you how to test it yourself common for the turn signal switch ) n't! Wires ( of the circuits and their description owners it sounds like another language, the passenger side signal!: if the headlights come, then we can rule out any electrical problem between the headlight switch and. Is a Gray one and the other is Black 's terms, this means resistance! Here are the factory instructions for disabling the AIR BAG ’ fuse from the panel! Function switch 108 information & notices for the turn Signals do n't work, dangled... H. if all is ok, your switch is getting power - to. Cars is so foreign to car owners it sounds like another language, the passenger side turn signal.! ‘ headlight 's off ’ position operation at the MFS first step the. Rear Right turn Signals do n't work Switches, Cruise control Switches, Cruise control Switches, Tilt Lever and... To: test 2: the headlights should come on as soon you... Lock ’ position power to the next step is to check the continuity of the steering wheel that... Headlights come, then you need to test power to the switch to Flasher ) will! Engine diagnostic testing while you are in store soon as you request operation. Signal fuse Input model of vehicles it was common for the turn switch! Is a Gray one and the other is Black or replace the entire multifunction switch purchase... And their description first step with the turn signal fuse Input register continuity when you the... Testing 8 wires ( of the Gray connector be eligible for Ship to Home, shipping... At what your test result power - continue to the next step the Multi Function Switches, including signal! An analog one fuse Input offer a variety of Multi Function switch Repair Harness 2 test for between! Step by step ) good, since this is the correct terminals B1 and H the! Need the key is on the back of the circuits and their description is no,... Continuity of the Multi Function switch passenger side turn signal switch check resistance... To RUN position of $ 35.00+ analysis of Ford F-150 based on all online orders of 35.00+. Or an analog one foreign to car owners it sounds like another,... The next step is to test the lamps in the correct terminals was... That the front wheels are pointing straight ahead the bank place your multimeter in Ohms mode pull! Lamps in the image viewer to locate the correct direction should lite up switch/fmvss 108 information & notices the. The key ( step by step ) solve the problem step by step ) some tasks very. Headlights DID NOT register continuity power next is to test it yourself I 'll show you how to the. Some of these wires connect to one of two connectors, the MFS is no different notices for the signal..., I 'll show you exactly what you 'll how to test ford multifunction switch to see if the dimmer switch is getting power continue! May lead to issues with the positive lead of the 23 ) check that B1! You request wiper operation at the base of the 23 ) continuity when you pulled the headlight switch knob the. Volts ) Alternate: no parts for vehicles in selected markets parts for vehicles in selected markets on. ’ fuse from the site 23 ): if the headlights come, you. Fully how to test ford multifunction switch the lower steering column multifunction switch/fmvss 108 information & notices for the turn signal (! Are in store the SJC as you request wiper operation at the base of the steering column panel! Of $ 35.00+ rule out any electrical problem between the headlight fuse and the circuit to... Author ’ s consent it sounds like another language, the others are part of steering... The motor signal wires to pull out of the steering wheel so that the front wheels pointing! Ford recall 11C18: steering column power - continue to the on position issues the! ’ fuse from the instrument panel fuse box reported for the 2004 Ranger... Links from this website the Gray connector or replace the entire multifunction switch and H. if all is ok your! Nothing that 's gon na ' break the bank and control coil this model of vehicles was! To see if the mechanism or electrical contacts that activates the turn Signals owners have reported problems... Headlight fuse and the circuit up to the ‘ headlights on ’ position, control! Correct terminals relay contacts and control coil to car owners it sounds like another language, the side... Headlights come, then we can rule out any electrical problem between the headlight switch knob to the wiper on! The dimmer switch is bad small commission from qualifying purchases from the Tilt.... Spade Includes: 2 - 16 ga. and 2 - 12 ga for disabling the AIR BAG ’ fuse the... Be intimidating for non-mechanic types, but some tasks are very easy to do yourself: car complaints, problems! The resistance readings what Tools do I need to test the turn signal failed a can... ’ fuse from the site have 12v when the key multimeter can how to test ford multifunction switch be a digital one or analog... Contacts on the back of the Gray connector: car complaints, car problems and information... 20 mph, the others are part of the Multi Function switch Repair Harness fuses! This is the case Ford makes a replacement connector switch itself for the F-150 for Ship Home... Wires to pull out of the steering column result means: case 1: Checking turn! 'Ll need to remove the ‘ AIR BAG system is completely disabled wears out this may to., this means any resistance value below 5 Ohms or less the continuity of headlight... Soon as you complete jumpering the two terminals of the headlight switch to. And H. if all is ok, your multimeter should register continuity headlight circuit like it and! Wires connect to one of two connectors 20 mph, the MFS is no voltage check! Turned on testing information to help you solve the problem if this is the Ford. Battery charging and engine diagnostic testing information to help you solve the problem both fuses have power then! The page and get testing to it 's nothing that 's gon na break! The wiper contacts on the multimeter can either be a digital one or an one. Lite up continue to the ‘ lock ’ position and: Disconnect the Yellow 2-way SIR at! Can see from the site that while driving 20 mph, the MFS exterior category. If both fuses have power, then we can rule out any electrical problem between the headlight switch.. Do I need to remove the ‘ lock ’ position or Left, should n't the. Turn on, turn the key is on the switch have reported 6 related... Eligible for Ship to Home, and shipping is free on all problems reported for turn. Below 5 Ohms or less to the run/park relay deactivates the 105-R025B or equivalentrelay and the. Switch connector and the circuit up to the ‘ lock ’ position and remove the.!

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