How To Test Ignition Switch With Test Light

Here's my switch, I put this- I just took the switch off the door panel and put it on here. John Deere 2010 Ignition Switch Wiring Diagram May 24, 2015. It is probably loosing power from the ignition switch intermittantly. How to test an ignition coil. HQ Automotive Service & Parts. magneto ignition system. This tutorial will help you test the ignition switch on the 1997 Chevrolet and GMC Pick Up, Suburban, Tahoe, and Yukon equipped with a 4. This task requires a replacement ignition switch, a test light, a screwdriver, a ratchet, wires and wrenches. This testing procedure is valid for just about any automotive coil. It should read in part, "After attempting to start the engine, if the SECURITY light flashes or stays on, wait ten minutes with the ignition key in ON until the light goes off. 2 Fluke Corporation Troubleshooting Marine Engine Electrical Systems Figure 6: Alternator leakage current To check alternator diode leakage, connect the. I need to replace the ignition switch. Testing the switch is simple. Release the key. Stop engine and remove timing light. Before the removal, it is necessary to examine whether the connections to the switch are working. If you are willing to spend a little more, there are machines that can test ignition coils under use. The purpose of this article is to simply explain how the Model T Ford ignition system and associated spark timing actually work. Go back and check the setup or get another meter. Ergo it's imperative that you deal with problems associated with the switch, as soon as possible. Ignition Control Module (ICM) Circuit Descriptions. How do I test the 7 prong ignition switch, 1 day, yes, no - Answered by a verified Technician We use cookies to give you the best possible experience on our website. A weak reading could indicate a magnet that has lost some of its strength. Check the wiring and connection at oxygen sensor. These systems may not receive the power they need to start up if the ignition switch isn’t working properly. Turn the distributor body clockwise until the light goes out (contacts closed), then turn slowly counter-clockwise until the exact moment of point opening (the instant when the light goes on again). You can use a multimeter or a test light. • Turn off all lamps. Cadillac ignition switch replacement further ford ignition switch problems ignition switch diagram car ignition switch diagram 98 f150 ignition switch starter. This test simulates a pulse from the ignition timing pickup coils. On a Briggs and Stratton engine, check the ignition coil first. I checked the ignition switch, and it was good. Furnace Filter ; A clogged up furnace filter will block air flow into a furnace and raise the temperature inside it. To remove the ignition switch, unfasten its securing screws and withdraw the switch from the lock housing. You'll find relays with three, five or even six terminals, though. ELECTRICAL. Also, the term "ignition switch" commonly refers to the full ignition assembly, which includes the ignition lock cylinder and the ignition switch. Can I test ignition switch? 2 Answers. While there is no official service life for most ignition systems, you will typically end up replacing the ignition switch whenever it dies, which can happen suddenly. Acrobat Printable Version. Turn on the ignition switch to start the vehicle for the next phase of testing. Checking voltage ahead of and after the switch may not reveal a problem. That is fairly easy to test just by bypassing the switch. The Check Engine light will flash repeatedly or stay on solid on the dash. On the other hand, this could also be the sign of a dead battery. The main issue was intermittent low power. The two wires there when I measure across them gives me 120 volts. CASE 2: Battery voltage (10 to 12 Volts) WAS NOT present-Make sure that the Hazard Light Switch is not activated, re-check all of your multimeter connections and repeat the test one more time. 25 Cleaning connectors 3. if that's the case its working perfectly 🙂. Current flows from the ignition switch to a device called a constant voltage regulator, to the gauge, and then to a sending unit. Battery light on and no crank ignition switch to fuse box test. remove the lanyard, and press the start button. Turn ON the test switch. Cryptzog Stickybumps 17,529 views. Re: How to Test Ignition Switch Nov 14 2012, 11:38am no the contacts are not in the switch, if you take off the column housing right below the ign switch is a black box that all your wires run to, its the actual switcher and has a wheel with teeth that turns with the key, it is possible for the contacts inside to fry. If the test light comes on during these tests then the switch is OK. An ignition system ignites a fuel/air mixture inside the engine's combustion chamber at the optimal moment in the pistons compression stroke. You'll find relays with three, five or even six terminals, though. The ignition switch not only sends power to the starter which turns the engine over, it also makes an electrical connection that sends power to the lights. How does an ignition interlock work? The driver must exhale into the device before the vehicle is started. The plug wire runs from the ignition coil to the plug cap. If you are willing to spend a little more, there are machines that can test ignition coils under use. To install: Align the locking cam with the hole in the ignition switch and insert the switch into the lock housing. Once it snaps back to run position, check if the warning lights go out as the switch snaps back. Putting the key in the ignition switch and starting the car feels like second nature. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. Where is a Brake Light Switch Located?. You don't need any expensive testing equipment like a scan tool. Remove outer jacket door. You can use a test light here: After removing the bulb, clip the test light to the socket wall (ground) and touch each socket contact inside with the tip of the test light. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. 8L V8 engine. You can check the voltage of the switch by using two tools - a 12-volt test light or a digital multimeter. Also look to make sure that there are not any other wires connected to Terminal #1. The first uses a simple on/off switch, the ignition points, to provide properly timed pulses of 12-volt electricity to the ignition coil. An easy way to test fuses is with a volt-meter. All other vehicles start the engine and bring to normal operating temperature. I can get it to crank. Using an ohmmeter, check the resistance between the side terminals of the coil. If they kick in then I'm gonna say its the switch that's bad. A popular kill switch for marine applications has a "key" with two contact points that completes the ignition circuit when inserted into a housing. Bad ignition switches can cause issues like sudden stalling of vehicle, erratic resetting of radio and brake lights and inability to insert the key into the ignition slot to name a few. In this example we need to not only figure out if the switch works properly, but also which posts on the rear are live with each key position. When it comes to testing ignition systems there's a whole lot of different options and ways to test it and things that you can use to test it on. Checking voltage ahead of and after the switch may not reveal a problem. Acrobat Printable Version. Put your wiper switch in the on position, maybe spay some water on the windshield if you like. First you will have to remove the spark plug boot. The ignition switch cannot operate the starter motor unless the transmission is in park or neutral. How to Bypass/Test your Neutral Safety Switch Lately it seems members are haveing a spat of no Cranking problems with their starters. 2 How it works 4. If your test light does not flicker on and off, visually inspect the wires running into and out of the ignition module. Turn the ignition on. If the relay is working, you should have power to the white/brown wire when the ignition switch is in the start position. Now get out your test light and/or multimeter. Connect the alligator clip of your test light to ground. 3 Battery 3. @ ignition switch tumbler EXTRA INFORMATION NOTE #1: This vehicle may be equipped with CHRYSLER'S ANTI-THEFT TRANSPONDER System (GRAY IGNITION KEY), if so to remote start will require the 791 BYPASS MODULE and an extra Ignition key, to order go to the SECURITY BYPASS MODULE PAGE on this website. On a non fused system the green wire powers the idiot lights, the ignition, the brake light switches, the turn signal relay and the horn. The test light will light when there is a sufficient difference of potential between the point of the light and the alligator clip on the other end of the ground wire. If an oil pressure switch is used, a jumper across the switch will activate the regulator. This tutorial will help you test the Ignitor (ignition control module) on the 1995 thru' 1996 1. Engage the ignition, without starting the engine, to activate the voltage regulator. If the light to the starter solenoid lights up as you crank but the car won’t crank then you need a new starter. If your solenoid is a four wire solenoid, check both small wire terminals as one is ground and the other is power from the ignition switch. Steve was interested in optimizing ignition. BATTERY IS OK, BUT STILL NO SPARK - CHECK FOR POWER TO THE IGNITION MODULE Using a test bulb or voltmeter/multimeter, check for a good power feed into the ignition module. If you see a blue light when testing the ignitor, make sure the tip of the electrode is 1/4 inch from the port opening of the burner. To jump the solenoid, take the red clamp from one end of the jumper cable and connect it to the positive side of the battery. The Charging System Electrical Circuit Diagnosis - Course 623 5-7 Current in the charging system changes for these three different operating conditions: •Ignition switch to ON - engine stopped •Ignition switch to ON - engine running alternator output below desired voltage •Ignition switch to ON - engine running alternator output above. When this happened, the customer said that the Electronic Throttle Control, ABS, Traction Control, and sometimes the 4WD lights would come on. Read on for proper instructions on how to conduct these tests so you can be sure if your coil needs to be replaced. Check for proper igniter position; make sure there is proper ignition control grounding. Fix each connection that shows a voltage drop that more than 1/10 volt loss, by at least cleaning, dielectric grease, and tighten back down. Testing a Spark Plug Ignition Coil in 7 Steps. The ignition switch activates the main electrical systems in your car. Some of these problems range from the Civic key not disengaging or your car not starting. spark, check the ignition switch’s “M” terminals if using remote start. Reconnect the battery 12v negative cable (black wire) to battery terminal (-). I use a multimeter, a 12-volt test light, and jumper cables. Voltage should cycle between 0. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set. In this example we need to not only figure out if the switch works properly, but also which posts on the rear are live with each key position. When this happened, the customer said that the Electronic Throttle Control, ABS, Traction Control, and sometimes the 4WD lights would come on. The lamp should light. Just like before: while cranking the engine, use a multimeter to check for voltage at the two primary wires of the ignition coil. If the wire is dead, the brake light switch may be bad. I bought my first TDI a 2001 Golf GLS a few weeks ago. To test either system you will need specific information about your vehicle and how it sends that signal. First, insert your key, it should fit in smoothly and turn easily. When one of these issues isn't the problem, there's a decent chance that you have a bad switch, especially if the switch is old and/or feels a little loose. The purpose of this article is to simply explain how the Model T Ford ignition system and associated spark timing actually work. The only time this would not be true, is when the Ignition System is a magneto and the battey is only used to run the horn and tail light. Then test between the ignition feed wire at the box and the wire used to ground or earth the ignition system. Acrobat Printable Version. I measured the voltage between each terminal and ground - Zero voltage. This type will not work properly when used for a light switch. For the tester bulb to light there must be a good contact at the test points. Finally, I show how to perform a resistance test on the coil itself, using an ohmmeter. the white wire makes a test lamp circuit with the red lamp there. This is one of the major symptoms of a bad ignition switch. 31 Battery Voltage test 3. Turn the ignition switch on. Hello, thanks for writing in but you did not mention the make, model, or year of vehicle. Defective flame safeguard control or plug in purge timing card. If power is connected and the switch is working properly, the test bulbs will illuminate. Do the same with the key in the ON position. Install negative battery cable to the female end of test switch. If the voltage goes away, check the key switch. Are you using an original ignition switch? Is it from an older car?. REVERSE LIGHT SWITCH coarse thread type fitted in 1997 ROBIN ; Note that the plunger is in the OFF position when fully extended and goes to the ON position. The brown wire should always have power. Still, this is enough for your ignition system to cause all kinds of engine performance problems, especially during damp weather. Run a test light from the battery and tap it into each hole in the rubber plug you pulled from the ign switch until you get the wipers to work. Most later models use Briggs and Stratton's magnetron coils—essentially a self-contained ignition system that derives its power from the magnets on the flywheel. Battery light on and no crank ignition switch to fuse box test. Test the results by turning the ignition to the accessory position, then back to the ignition position. do you have a color coded wiring diagram for ignition switch on model 917. When the timing marks just start to appear, a 12v test light (or a multi-meter set to 12 volts DC) should be connected across the contact points (one side to ground, one to the hot lead on the other side of the points). Is there an easy Red Neck way to bench test an ignition module out of a leaf blower? I have some old ones laying around, and would like to find a good one, without re-assembling the blower to test each one. If your original test of the ignition (or run) switch indicated normal voltage, but slow or no cranking, your next step is to check the motor system and its connections. All you have to do is press a small tab, then pull out the ignition switch. Turn on the multimeter and set the dial to "V" for volts. I measured the voltage between each terminal and ground - Zero voltage. Your vehicle may begin developing ignition switch problems as it gets older. You can also check for resistance by placing the red probe of your multimeter to the ignition circuit terminal and the other to the ground terminal. Order Ford Ranger Ignition Switch online today. If the test light did not light up, then the problem is 1 of 3 things either the connection at the main engine harness plug is bad, or you have a bad neutral safety switch or a bad connection between the ignition switch and the slave solenoid. Discussion in 'General Tech Talk' started by Terminater, head light relay/ignition switch bypass. Clean the tip of the electrode with alcohol and try to light the grill. The bathroom light switch to turn the light on is a little different. Reproduction Ignition Bezel bezel nut worked pretty good to keep the ignition switch in the dash of your Truck. The IGT signals are what tell the Ignitor to start activating the ignition coils. Using an ohmmeter, check the resistance between the side terminals of the coil. You can test the ignition switch with an ohmmter, which is the most direct way. The first uses a simple on/off switch, the ignition points, to provide properly timed pulses of 12-volt electricity to the ignition coil. 2) Turn test switch knob to ON position (current through switch). One downside with this test is that it is hard to know if the ignition coil is not working so well. What is the condition of the test light while cranking the engine?. In this step-by-step guide, we will go over how to test whether an ignition coil is good or bad by examining the resistance using a digital multimeter. Install negative battery cable to the female end of test switch. this test is successful. Re: How to tell if ignition switch is bad It's a 1991 engine so there's going to be some safety switches on it and like Don says,you've got to make sure they aren't the cause of the problem. Ignition coil problems. Release the key. If the light does pulse, replace the coil. If there is power there, the ballast resistor is likely bad. I guess BMW. If the lamp stays on, replace the switch. KD 2757 Standard Ignition Tester is calibrated for Standard Ignition Systems, while KD 2756 HEI Igntion Tester is calibrated for High-Energy Systems. This is why the bench test is a more thorough way of testing your ignition coil. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. John Deere 2010 Ignition Switch Wiring Diagram May 24, 2015. One of the options is these flag pickups here. One is using a basic test light and two is using a scope and low amp probe. Feed the wires of the ignition through the hole in the engine case and seat the ignition. If the warning light is not working and the bulb hasn't blown you can check the wiring circuit with a test lamp. This article will show how to check a flashlight bulb or any other bulb that contains a filament to see if it's working or not. Re: Wire rocker switch to ignition on/off, And switch mounti Oct 04 2016, 8:49pm The simplest solution is by taking a test lamp and checking the fuses in the panel that's accessible by opening your drivers door and pulling the small panel from the side of the dash. • If not completed, turn the ignition switch off, then go back to Step 3. If your switch is a more complicated setup, consisting of more than two wires, use the owner's manual to locate the primary "power in" and "power out" wires and test those. Today we are going to share with you the step-by-step instructions on how to replace your Spark Ignition Switch. This article is a short troubleshooting guide that may help you figure out the problem. Ignition switch on (run position) do not start car. Ignition Switch Replacement in 960 and Tilt Wheel Cars. Make sure to check all wiring going to and from the ignition module and spark plugs since wires are much easier and cheaper to replace than engine parts. Use the test light grounded to check for power, and then switch the test light lead to the power side of the battery to check for circuit ground. Current should be supplied to the magnetic switch when the ignition is "on" and the clutch switch or neutral start switch is closed. Related videos: Harley-Davidson® Ignition Switch Removal, Harley Dash Ignition Switch, Harley Ignition Switch Tip. If the warning light is not working and the bulb hasn't blown you can check the wiring circuit with a test lamp. A better way to check for a faulty brake light switch is to remove the brake light switch from the brake pedal and check for continuity. One of the options is these flag pickups here. A second one will have 12 volts only with the ignition switch in the "crank" position. Ignition Switch Replacement in 960 and Tilt Wheel Cars. Ignition Switch Replacement in 960. How to Test a Light Switch. Current should be supplied to the magnetic switch when the ignition is "on" and the clutch switch or neutral start switch is closed. Remove it and test all for terminals in the socket with a voltmeter or test light. Tools • Wire jumpers • Multimeter Testing Procedure 1. Best Answer: does the machine have a battery if so put an test light looped from the ground/neg side to the positive side and crank the engine, if the light pulses on and off that tells you three things, the ignition control module is working the trigger is sending a signal to the module and the coil has power. The EEC IV computer turns off the bulb as soon as it receives the PIP (crank) signal. 31 Battery Voltage test 3. So almost everytime turning left my ignition switch 15a fuse blows. When you need to test your Honda Civic ignition switch, you can use our guide to diagnose and troubleshoot the switch in your steering column. In this case, if you don't know how to reset check engine light, here are 4 useful way for you. When the switch is toggled on way, you should measure infinity (or not hear a beep). Accordingly, it's best to repeat this test using each module. Best Answer: the ignition switch on many cars has a wire harness that runs down the steering column and plugs into the main harness under the dashboard. You should have a White wire on one terminal and a Blue wire on the other terminal. This wire comes from the ignition switch to the solenoid. [Query:] After stopping our '90 745T the ABS light came on, the blinkers did not work, along with the power windows. You will need two keys to perform this programming procedure. I just had my brake warning light start flashing last night while driving through a rain storm with some warning beeps. Many of such issues can be resolved by referring to the options below. How to Test a Switch With an Ohm Meter. Current flows from the ignition switch to a device called a constant voltage regulator, to the gauge, and then to a sending unit. There are times when an ignition coil will work fine while the engine is cool but starts to fail when it warms up. If the lamp lights, turn the switch on and probe its other. You should find twelve volts when the ignition switch is in the "crank" position. If your test light does not flicker on and off, visually inspect the wires running into and out of the ignition module. Remove steering column shroud to gain access to the wire har-nesses at the rear of the ignition switch. Turn the ignition on. If this is the first time the car has run, check the polarity of the gage by turning the lights on with the ignition switch off. The switch is good if the continuity tester lights. Turn on the ignition switch to start the vehicle for the next phase of testing. Turn the key to ignition on/run (no need to try to start it). This is to prevent you from accidentally locking the keys inside of your. This indicates to me either the ignition switch or the wire is faulty. Switch the ignition on. Should see constant 12vdc on one contact and 12vdc coming and going on another as you turn the key. 2) Turn ignition switch to START position. 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. Ergo it's imperative that you deal with problems associated with the switch, as soon as possible. Price: $20. Wife managed to get home and call me at work. The power starts at the battery and then travels through the main fuse, the ignition switch, the ignition fuse in the fuse box, the engine stop switch, and on to the TCI, and coils. The White wire is a 12 volt constant. After road test, turn ignition switch to LOCKED position and remove key. TROUBLESHOOTING Zipr3, 4, Xtra As with any electromechanical device, electric scooters may occasionally require troubleshooting. Testing one of these coils constitutes a relatively simple process. If the voltage is 12v the coil is open (dead). The ignition switch activates the main electrical systems in your car. Also look to make sure that there are not any other wires connected to Terminal #1. Also look to make sure that there are not any other wires connected to Terminal #1. A test light, sometimes called a test lamp or voltage tester, is a simple but extremely useful electronic tool to check your car's circuits—that is, the presence or absence of electricity to a certain component or piece of equipment. Verify that the starter signal from the ignition switch is getting to the solenoid by attaching the alligator clip on the test light to a good ground. This is the Gum Tree Garage test for a V-12 ignition when it cranks but refuses to start: Pull the lead from coil to distributor out of the distributor and jam it under a fuel pipe so there's a gap of about 1 mm (0. Rev Limiter + Tachometer. When there is no spark at the spark plug, replace the ignition coil with a new one. The tester light should not come on. Turn the ignition switch to the ON position. Once you have voltage, crank the engine and the voltage should stay present. Ignition Control Module (ICM) Circuit Descriptions. Once the covers are off the ignition switch is accessible. Am I correct in thinking the switch for the R80RT would be the same as the R100RT? In searching for a switch I seem to find more availability for the R100, which makes sense. 1010, 2010, 2510, 3010, 3020, 40, 4010, 4020, 420, 430, 4320, 435, 440, 50, 520 ANYHOW, a blue and a. The ignition switch activates the main electrical systems in your car. The ignition switch test involves checking for continuity across specific terminals of the ignition switches connector. To use a test light: Turn the ignition key off and disconnect the wire connector at the module. Any and all help would be greatly appreciated Thanks, Matt VWVortex. The gas ignitor has electricity passing through it, which opens the gas valve in the bottom of the oven. They have two leads and a light the lights up when current is sensed. • The ECM may be damaged if dropped. • Turn off all lamps. Photos show how to connect the ohm meter to the switch for testing. The circuit begins at the ignition key, and just like starting a car, once the key is turned, it completes the circuit through a solenoid -- which acts like an electrical connector -- and sends power to the starter, causing it to spin the flywheel, which starts the engine. 4 - If a spark did occur, check the PIP and ignition ground wires for continuity. From simple stop-steer-go check up to fully refitted carts. This tutorial will help you test the Ignitor (ignition control module) on the 1995 thru' 1996 1. Turn on the ignition, connect one side of the tester to earth and probe the various parts of the circuit shown here. Here is what you should get: Key off Brown, Pink and Purple dead. Testing the Coil or Armature. To check it, you must insure that each component is working correctly. First, insert your key, it should fit in smoothly and turn easily. For the tester bulb to light there must be a good contact at the test points. Re: How To: Troubleshoot a Points Ignition System mebbe the part of checking for continuity on the coil? your really going to want to check for a specified resistance. 2 How it works 4. If the light is still off, check for a bad connection between the coil and the key switch. It is probably loosing power from the ignition switch intermittantly. Also look to make sure that there are not any other wires connected to Terminal #1. You will need two keys to perform this programming procedure. 6: If there's no power at the positive terminal with the ignition switch in "start" mode, check for power at the "I" terminal on the starter solenoid. A preliminary check for this is if your idiot lights dim when you turn the key to start, that's a good indicator that the ignition switch is functioning properly. The ignition switch is the master switch that provides power for the vehicle's electrical accessories, computer, fuel and ignition systems. IGNITION SWITCH TEST Switch Test The easiest way to test these circuits is to use a battery or a battery charger. Locate the appropriate wires exiting the ignition switch and. This wire comes from the ignition switch to the solenoid. For the remaining two terminals, move the ground lead of your meter or light the battery positive post. With it out you can see the terminals better. Turn on the multimeter and set the dial to "V" for volts. If the starter doesn’t come on even when the light comes on, you may need to replace the starter. depending on what meter is used a reg continuity check may not show depending on total resistance. [Query:] After stopping our '90 745T the ABS light came on, the blinkers did not work, along with the power windows. You get your 100% money back in this unfortunate instance. If the test light is not lit, verify you have a good ground. To test the speedometer indicator light, pull off the wire connected to terminal KBL, ground it to the body, and turn the ignition on. "I" is what fully energizes the ignition coil. When it is in the “off” position, it doesn’t send volts to the coil and will not allow it to create a spark. I measured the resistance between the black/orange wire and the yellow wire going to the ignition switch, with the 3 wire harness connected to the ignition switch I measured 4. This earth comes through the field winding and its slip-rings and brushes, from the field terminal of the voltage regulator. Air Cooled Volkswagen Ignition Timing Method Using A Volt Meter. In addition, the ignition switch mechanically controls the amount of voltage sent to the coil of the starter by switching between two circuits. Always turn off the ignition switch before servicing. This test is bypassing the park position in the switch and now is using the little used neutral circuit. The switch is good if the continuity tester lights. The purpose of an ignition switch is to prevent the electrical system from draining the battery when the tractor is not running. Switch on headlamp, this should stay bright for at least one minute. Understanding some of the basic components of a modern furnace will help you identify the type of furnace you have and narrow down the list of potential problems. Tohatsu M50D ignition switch test April 18th, 2011, 06:33 AM. Posted: Tue Sep 06, 2016 5:07 pm Post subject: How to test key switch, solenoid and coil Folks sorry for the wildcard questions but I've had a day. Page 1 of 3 : How to Test the GM Ignition Control Module (1995-2005). A bad ignition switch can mimic other problems that are seen in a car, such as a faulty motor starter. One terminal will have 12 volts all the time. Before the removal, it is necessary to examine whether the connections to the switch are working. 5 - If no spark occurs, check the voltage at the positive (+) terminal of the ignition coil with the ignition switch in RUN. Re: How to tell if ignition switch is bad. Turn the ignition on, then test the power with a spare light bulb between the connector and engine bare metal (this is better than a voltmeter, because it will reveal a poor contact with insufficient current carrying capacity). Turn the ignition switch to "on". Today we are going to share with you the step-by-step instructions on how to replace your Spark Ignition Switch. ignition switch terminals on the back of the switch which fits into the steering column assembly ; it is a single terminal at postion 1 ; it is a single terminal at postion 2 ; it is a double terminal at postion 3 ; it is a single terminal at postion 5 ; there is no terminal at position 4 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. Pull the wiring connector off the back of the ignition switch Unscrew the ignition switch from bracket (early/STD 1200s) or rear of the key lock cylinder (Steering Lock 1200s) Check ohms between S and B terminals. The next step is to go to TEST 3. To overcome this, a circuit is required from HEI power circuit. Disconnecting the switch. Re: Test golf cart by bypassing key switch Yes - the aftermarket key switch had a blue and a green wire connected to the switch, as well as two 12v + wires from the battery. For two-cylinder engines, you should test each cylinder to make sure you do not have a bad connection in the HV wires. I wired a manual switch between the Red (+12v) and the black accessory light wire and everything works great! The ignition keyswitches for the current Sunny and Handsome Boy body styles have 5 wires (same but two green wires) so they were no help. Using a multimeter to test whether the switch is working correctly. With the switch loosened, place the shift lever into park (P).