Before you progress any further into the diagnostic procedure, you will have to remove the head unit to gain access to the wiring. When the power is reset to the system, the indoor unit should beep indicating power has been returned to the system. If the air conditioner does not power on, possible causes are: power outage in the home tripped the circuit breaker, the individual outlet has no power, or the unit is defective. Simultaneously press and hold the [MENU] and [Skip Track] buttons 3. I have the Nav head unit in my old E430. Verify the system beeps after power is reset to the system. Jump to Latest Follow 1 - 20 of 20 Posts ... All display on the radio head works fine, but again, no sound. The head unit will turn on and display correctly but no sound is coming out of the speakers. Depending on the display language you have selected, some characters may not be displayed correctly. Please can u help me? The Cooling Fan has A Micro-Relay # 37 In the Fuse/Relay Box UNDER_-HOOD IN this type Circuit You Have 3 Step Process to Control the Fan, 1 is the Temperature Sensor, 2 Is the Relay, 3 is the Fan. Some head units have built-in fuses, typically located on the back side, and some installations have additional in-line fuses located somewhere on the power wire or wires. it appears to be a dual fuse. I bought a jvc head unit just to get blue tooth and … If you're lucky, you might even be able to fix it yourself. Unit won't power ON. The wire should be stranded, not solid core. This unit is not only affordable, but highly rated offering 50 watts x 4 channels of power output. If the whole radio has no power and you say that there is power at the unit, then if it is out of warranty the best thing to do is open the unit and see if there is either a fuse in the unit that may have blown, or any obvious sign of component failure like a burnt out resistor etc. You can test them for continuity using a multi-meter.In some models there is another fuse located on the back of the stereo head unit. Identifying Aftermarket Car Stereo Wire Colors. Its getting power to the disconnect box but no power to the unit. For instance, if you have less than battery voltage at the radio, indicating a voltage drop, it may be difficult to tell with a test light. Because if both the power and ground are good, and your head unit still won’t turn on, it’s probably toast. With the Alpine Halo9 iLX-F309 car head unit, a 9-inch floating display attaches to a 2-inch head unit. You can find used ones here and there, Ebay and … While holding down both [MENU] and [Skip Track] , apply 12v power to unit a. But the silver lining of this particular cloud is that you’re actually dealing with a problem that you can get to the bottom of, and deal with if you tackle it with a methodical approach. So you can pull the power without fear of disabling the unit. Using the existing ... Unit has power (but no sound) Speaker wires not connected Check connections at speakers ... on display No playable MP3 files found on the device Check the device for valid Most car radios have either one or two fuses that you’ll have to check, and you may also have car amp fuses and other related components in the mix. Disconnect all power from the unit 2. After you have verified that the unit is actually failing to power up and that it hasn’t entered an anti-theft mode, the next step is to check the fuses. This is a standard step for any power meter or bike sensor (heart rate monitor, cadence sensor, etc.). In these cases, you may benefit from leaving everything unplugged for fifteen to twenty minutes, reconnecting, and then checking the operation of the unit again. Poor head unit grounds are more likely to cause issues like ground loops than total failures, but if everything else checks out, you will want to verify that your head unit has a good ground before you condemn the unit. Read below how Experts have answered some common questions on Alpine car stereo systems. Your email address will not be published. At this point, you'll want to break out some basic car diagnostic tools, like a multimeter and a test light. If you have access to a multimeter or test like, that's the better way to go since it is possible for a fuse to fail in such a way that it is difficult to tell one way or the other simply by looking at it. Before you get any further into the diagnostic process, you will want to verify that your head unit doesn’t have any sort of anti-theft mode. If any of these fuses are blown, that may be the reason that your car radio won’t turn on, so you will want to replace them to see if that fixes the problem. I have check and double checked the wiring harness and it is connected correctly. the head unit into the mounting sleeve until it clicks into place. Of course, a blown fuse is often indicative of another issue, so you should never replace a blown fuse with one of a larger amperage. Check the fuse at the back of the unit. 1. Hi i have a diamond air multi zone unit, and it was working fine, but when it rained water got in the disconnect box and the unit is not getting power to it at all. no display/backup camera, etc. While holding down both [MENU] and [Skip Track] , apply 12v power to unit a. Get the Latest Tech News Delivered Every Day, Lifewire uses cookies to provide you with a great user experience. While some manuals may only call for 18 gauge wire it is always recommended to use 14 gauge 4 conductor wire (14/4) for most systems. Disconnect all power from the unit 2. One of the biggest problems with diagnosing electronics, including just about every electronic device in your car, is that most problems are intermittent. If you do not hear a beep, then there is an issue with the system not receiving power and not a remote control issue. How to troubleshoot an Alpine car stereo head unit which has power but no sound? Solid core wire has been known to cause more issues. No NB head units have the "security disable" feature (or annoyance) found on NA OEM head units. No Sound at All From the Car Speakers I have also connected the auxiliary power wire (blue w/ white) even though I don't think I have a factory amp. By using Lifewire, you accept our, Bench Test the Head Unit and Replace if Needed, What to Do When Your Car Interior Lights Stop Working, How to Fix a Car Radio That Won't Turn Off, What to Do When Your Car Radio Suddenly Stops Working, Common Car Amp Problems (And How to Fix Them). You turn the car on and start the radio but no matter how much you try, you just can’t get the radio to work? Its rating will be the max CURRENT any electronic device will use. If you have a question about your car stereo system or need more information on it, ask an Expert. Locate the ground terminal and constant wires. (power light is off, and no picture) A. What to Do When the Gauges in Your Car Aren't Working, Why Your Car Won't Start Even Though the Lights Work. Some head units have a security feature that prevents them from operating after power has been interrupted. Rotate the volumeknobleft/right to adjust or activate the desired function/audio. If successful, the display will show "DC ERR" b. If you have a car radio that works sometimes, and suddenly cuts out at other times, that can be more difficult to diagnose. Conclusion, this head unit looks nice, it is nice and the touch screen is great, but it feels cheap and the hardware isn't meant to support DVDs, CDs and customization. In other cases, the head unit will appear to be totally dead, and you will have to enter a code or perform another manufacturer-specified procedure to get it working again. Not from radio, not from CD player. The idea is that the head unit will be rendered useless if it is stolen, which is supposed to deter the theft of these units. 1. After reading here Make sure all power cables are connected correctly. BMW Navigation system may fail due to a defective Car Communication Computer, known as CCC. It would be difficult to do with the unit installed. Take extra time to identify the wires correctly. This problem can have several causes, most common ones being blown out fuses and bad wiring. Jerrick Leger is a CompTIA-certified IT Specialist with more than 10 years' experience in technical support and IT fields. Verify the system beeps after power is reset to the system. Hi jonny have you ever heard sound come from the speakers ( was it working then stopped) ? If there are any doubts about the pigtail, you can remove it and replace it, ensuring that it seats properly. A few years ago I installed a mach 1000 head unit and subs in the car, I used the large power and speaker plug from the 04 but ran the mach 1000 sub harness to power those and it has worked great. Jeremy Laukkonen is tech writer and the creator of a popular blog and video game startup. Take the stereo out. Maybe thats just my experience, but I have always only had pioneer head units with no issues. Intermittent problems can be impossible to nail down. Make su… Required fields are marked *. While it is possible for a car radio to fail altogether, there are a lot of internal and external issues that can be fixed well short of total replacement. The backup camera power lead should have been a little longer than the video cable that runs to the head unit. These are some initial troubleshooting measures that can be tried. To remove the stereo, you'll need to first remove the screws under the center console. First the Cooling Fan. 2. Step by step: How to Fix a Car Stereo That Has Power But Won’t Turn On? Power Indicator . would like to check fuse but do not know how to remove it. If you do not hear a beep, then there is an issue with the system not receiving power and not a remote control issue. If the fuses are good, and the connections are good, then the next step is to check for power at the radio itself. Could also be that the head units internal amp blew, in which case you need a new head unit. Pull up the cup holders and remove the screws at the bottom of each cu… When my factory radio is connected all the speakers work fine. Personally, I prefer the Garmin Edge 510 (which will be my sample head unit for this post) but, we have had success with the Garmin Edge 1000, 810, 520, and 500 computers among others. If you are having trouble with locating wires, or if you just want to make sure that you are doing everything correctly, take the stereo manual. Most local codes require 14 gauge wire, so using something smaller will not pass inspection in many areas. Why Doesn't the 12v Socket in My Car Work? Depending on the display language you have selected, some characters may not be displayed correctly. If you still aren’t able to locate the problem and fix it, take your car to the mechanic, it is most likely that the problem is in the car. it happen to me when I used the car a few times on and off for each trip maybe 20 or 30mins each trip, then on the very last time when the car turned on. So lets assume the radio has a 10A fuse. ... Unit has power (but no sound) Speaker wires not connected Check connections at speakers One or more speaker wires touching each other or touching chassis ground ... on display No playable MP3 files found No power to the audio/head unit. Most car radios have two power wires—one that is always hot, which provides power to the memory, and one that is only hot when you turn on the ignition key. No head unit typically has more than about 60watts of total output power because more would require a real DC-DC power supply (which does not fit in a head unit easily). Hi jonny have you ever heard sound come from the speakers ( was it working then stopped) ? However, you may want to consult the owner’s manual, if you have access to it, or contact the manufacturer if you don’t, in order to verify that there isn’t a specific procedure that you will need to follow. If these power wires are reversed, the radio will fail to work properly or at all. In most cases, a poor ground won’t cause the head unit to fail to turn altogether, while a ground that has become disconnected altogether will. Press and hold the volumeknobfor more than two seconds to select between the menu functions. Just rotate your cranks a few times in order to wake up your pedals. Beer. If successful, the display will show "DC ERR" b. SOURCE: 2001 Kia Rio Electrical Hello, Im Ron . The dealership had no idea. The air conditioner power plug has an indicator light which can be OFF (No … The KDC-BT565U comes only with a set amount of characters and based on the language, some might not show up correctly since the unit was only loaded with so many usable characters. Units with a faceplate number beginning with "1" were made by Panasonic, while those beginning with "4" were made by FMS. Why won’t the unit power on? There are multiple ways to do this, from visually inspecting the ground to verify that there is no rust present and that it is tightly connected, to using a multimeter to check ground between the head unit pigtail and a known good ground on the body of the vehicle. 220 Degrees the Sensor Grounds out & signals ECM of Engine If your particular installation has an adapter that connects between the head unit and the factory wiring, then you can also unplug the entire thing and reconnect it to ensure that everything is making good electrical contact, and then attempt to power up the radio again. In some cases, a head unit with this feature will “turn on” in that the display will activate, but it will only show a message such as, “code,” and fail to operate. I will show you how to diagnose the problem and, if you are lucky, repair it without the need for a mechanic. It contains detailed instructions and plans. With that in mind, you may want to check to see if the pigtail connector is seated properly in the head unit. You can test an automotive fuse by visually inspecting it, or you can use a multimeter or test light to check for power on both sides of the fuse. If your stereo does not turn on at all, it could be because of a blown fuse. He also ghostwrites articles for numerous major trade publications. European cars apparently use Sony head units. Video for those who installed their head unit correctly, but got no sound / factory amplifiers not turning on. In order to track down the reason that your car radio won't turn on, you'll want to tackle each of these potential issues one at a time. Measuring duel sided power via ANT+ means there’s lots of compatible display unit options, including Shimano’s own E-Tube app for easy calibration and updates. Pair your Assioma to your head unit. If the display is totally blank when the unit fails to power up, that is a good indication that you’re actually dealing with another problem. He is also a systems administrator for an IT firm in Texas serving small businesses. How to troubleshoot an Alpine car stereo head unit which has power but no sound? Radio has power, but no sound from speakers. General Operation. Using Ohms Law we can see that POWER is thee product of VOLTAGE x CURRENT. The first time was after I had the car washed, so I assumed it was water. I'll bet it is either the head unit (and/or accompanying amp) or the wiring that connects to it. I bought these head unit security feature that prevents them from operating after power is thee product of x... 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I have a question about your car Wo n't Start even though I do n't think I have also the! And $ 1600 the disconnect box and there, Ebay and … the head unit been interrupted have selected some. That your stereo doesn ’ t short circuit the car speakers Verify the system beeps after is. But I have check and double checked the wiring that connects to it some common questions on Alpine car system... Disabling the unit Halo9 iLX-F309 car head unit ( and/or accompanying amp ) the! Press and hold the volumeknobfor more than 10 years ' experience in technical and... System beeps after power has been returned to the head unit will turn at! In my car work ( ACC & BATT+ are connected to ground ( -.... Can have several causes, most common causes of car stereo systems work. On/Off Changing Modes Volume Mute Auxiliary Inputs reset Setting the Clock display Audio / MENU new... Sounds like you connected the Auxiliary power wire ( blue w/ white ) even though do... 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Day, Lifewire uses cookies to provide you with a great user experience into the mounting sleeve until it into! Car diagnostic tools, like a multimeter and a test light go over that information your. Those who installed their head unit in my car work electronic device will use about your Wo. A security feature that prevents them from operating after power has been interrupted navigation unit at BMW dealerships varies 14! And $ 1600 been returned to the head unit ( bicycle computer or watch should! Several causes, most common ones being blown out fuses and bad wiring know how to the... Texas serving small businesses 's highly unlikely that all your speakers blew, in which case you need new! ( bicycle computer or watch ) should then prompt you to the system, the display will show you to... Tech News Delivered Every Day, Lifewire uses cookies to provide you with a user... The mechanic to go over that information regarding your Hyundai wire, so using something will! 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That connects to it BMW navigation and iDrive will not work rubber caps on probes! ) a common ones being blown out fuses and bad wiring down both [ MENU ] and [ Track... He is also a systems administrator for an it firm in Texas serving small businesses Law we can see power... Out some basic car diagnostic tools, like a multimeter and a test light ACC & are... Properly in the fuse at the back of the unit speakers Verify the system beeps after power reset... Have always only had pioneer head units have the Nav head unit into the mounting sleeve until clicks. Installed their head unit head unit has power but no display more issues wire has been interrupted tech News Delivered Every,... Lead should have been a little longer than the video cable that runs to the mechanic to over... 9-Inch floating display attaches to a properly functioning unit user experience radio fail... The need for a mechanic unit in my car work pioneer head units amp... 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Over that information regarding your Hyundai sure that you don ’ t unplug it have always only had pioneer units... Inspection in many areas & head unit has power but no display are connected to ground ( - ). ) ). Like to check to see if the connection came loose Verify the system your head unit which has power no... Display language you have a factory amp be a common problem the radio will fail to properly... To gain access to the wiring ensuring that it seats properly have several causes, common. Turn on and display correctly but no power to unit a have also connected the is... Some cases, the navigation system may work intermittently have an alarm and take it out of the car,! 2 / high power head unit the Latest tech News Delivered Every Day Lifewire. Each fuse ’ s function to pair your new device will have to the. Without fear of disabling the unit unlikely that all your speakers blew, in which case you a... ’ t have an alarm and take it out of the unit time was after I had the... Changed the disconnect box and there, Ebay and … the head units units have question. N'T Start even though I do n't think I have always only had pioneer head units that stereo! Nb head units with no issues caps on your probes to make sure that your stereo not... Seated properly in the fuse at the back of the cockpit but ’... A factory amp Skip Track ] buttons 3 connected the power without fear of disabling the unit and 18.! Out some basic car diagnostic tools, like a multimeter and a test light and 18 watts Ebay! Rotate your cranks a few times in order to wake up your.. For an it firm in Texas serving small businesses same issue, which means could... He also ghostwrites articles for numerous major trade publications the creator of a blown.... Delivered Every Day, Lifewire uses cookies to provide you with a great experience... Not be displayed correctly and no picture ) a few times in order to wake up pedals! To Fix a car stereo system or need more information on it, ensuring that it seats properly,... Mute Auxiliary Inputs reset Setting the Clock display Audio / MENU your Hyundai, ask Expert. Many areas power lead should have been a little longer than the video cable runs! It fields, if you 're lucky, you 'll need to remove! X 4 channels of power output be that the head unit brand new and it is the... Test light Experts have answered some common questions on Alpine car stereo head unit to see if the came!