Volvo immobilizer antenna ring replacement The latest time I went out to rescue my son from a supermarket parking lot. Briggi In this video I explain immobilizer system. The local dealership on 355 could not find anything wrong. The antenna ring has a small plastic catch that you push in and gently remove the ring. Crank - No Start Volvo Ignition Immobilizer Antenna parts online. Can I replace the immobillizer antenna ring myself, or does it require software download after install? Volvo also may need to test your antenna on glass very close, using a scanner. Well, it's dealer time! Click to expand The immobilizer or anti-theft system verifies that the key used to turn the engine on is the correct one. Verify fitment prior to ordering. If you trip the starter relay across where pins 30 and 87 plug in with a wire and car Feb 17, 2010 · The antenna ring is also a possibility and is actually quite cheap and easy to replace. There's lots of info on this at groups. * If you replaced the antenna and still have issues. Lack of synchronization of the immobilizer unit. Less frequent causes: Damaged antenna: due to electrical reasons, the antenna may stop working. Dec 6, 2013 · This comes after I hooked up the dice to investigate an immobilizer issue. Jul 9, 2025 · V70 (mk2) S60 (mk1) XC90 XC70 (mk2). If the car starts but stalls shortly after, a faulty or damaged antenna ring may fail to communicate with the key chip, causing the engine to shut off. It prevents unauthorized engine start by matching the transponder chip in the key with the car’s immobilizer control unit. The antenna ring is a winding of wire and there is nothing to wear out. Error code P1057- VOTD 4 Hours Chopin for Studying, Concentration & Relaxation May 13, 2019 · Your antenna ring for the immobilizer is reused and the keys are the same so the car still "knows" your keys. A noticeable indicator is a dim ring around the ignition lock cylinder, demonstrating a signal-related problem. Can someone explain how to clean the contacts on the immobilizer and where it is located? This looks like the first thing to check since it is free! Any help will be greatly appreciated. Take the 3 torx screws out of the steering column, remove the clamshell and remove the antenna ring. When the antenna fails, your Volvo key will no longer be recognized when inserted into the ignition. Mar 26, 2008 · Intermittent Immobilizer Issue: Any ideas? So I've been having an intermitten immobilizer issue ever since my vehicle was purchased back in Aug 2007. Oct 4, 2013 · I can see it is easy to replace the antenna ring and is approx. It is a common failure item on P2 Volvo models, and will cause an annoying intermittent no-start situation because it is struggling to read the key. More often than not the fault is related the the connection between antenna ring and wiring harness. Aug 11, 2006 · I have a very intermittent start then immediate stall problem with my 2000 V70, and the problem is slowly becoming more prevalent. Feb 26, 2025 · However, if the issue is related to the immobilizer system itself, or requires software updates or antenna ring replacement, then you’re likely looking at a higher cost, potentially several hundreds of dollars, especially if it requires dealer service. The steering column trim covers come off and the antenna ring is there in the open then. Does anybody know A very common scenario before more was known is to replace antenna ring and then the problem goes away but it can be temporary. Aug 31, 2013 · The antenna ring itself isn't mated to the car so you can swap it out independent of anything else and the system will still work without a software download. I also show you how to find the transponder chip, how to buy a new one and Dec 23, 2024 · Signs of a bad immobilizer include the car cranking but not starting, a flashing immobilizer light, or the key not turning in the ignition. Apr 14, 2015 · This is the Ignition lock cylinder immobilizer antenna. The immobilizer pdf, I have never replaced the wire pins as noted. NOTE! If this has been a single incident, it is not likely to be a faulty antenna ring. I have read that this could be due to the antenna ring. Check the antenna ring for damage or loose wiring. Oct 18, 2025 · Part Number: 9442961. You need to remove the collar around the steering column to get to the connector. '96-'99 car ecu just need a "green light" from immobiliser control module. It was functional until I disconnected the antenna ring to access another cable. Find Genuine Volvo Ignition Immobilizer Antenna 8621509 at discount prices in our extensive auto parts catalog. I use a small seal pick, put the pick into the empty hole above the terminal press down some to close up or re-tension the female pin ends. Jul 20, 2015 · The antenna ring doesn't have to be married to the car. Is this right and if so, what are the steps to get it running? Apr 22, 2019 · I'll replace it once we get it running. to/2KOdFZD Alligator Jul 20, 2011 · The antenna ring sounds like your problem but there are things you should do first. Will it work if my replacement has part number 37820-PLM-L56, considering it's Nov 28, 2020 · The engine does not react to starting gas. Replacing the antenna ring or repairing wiring harness connections often Dec 5, 2021 · No programing required for just replacing the antenna ring. - How can the immobilizer be reset? Oct 24, 2025 · VOLVO V70 MK1 Immobilizer Antenna Ring 9442961 NEW GENUINE Roberto_Parts_LTD (21355) 99. Transportation The transportation industry is undergoing a seismic shift, driven by electrification, autonomy, sustainability, and digital integration. I therefore suspect that the antenna ring and the immobilizer box need to go together (although some people say the ring is not specific to the key or immo unit). 13 I recently had a similar problem where I got intermittent "Immobilizer" messages. It is placed around the ignition switch, and detects if the key in the ignition is programmed to the vehicle for engine starting. Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom. May 9, 2011 · Sometimes the antenna ring can be faulty but many get replaced the problem is gone only because new part has clean terminals. Can I replace this myself and if so what is involved? Oct 28, 2018 · I don't think Antenna ring can work it's way through the network and cause havoc. No programing required for just replacing the antenna ring. I believe it is quite a common May 24, 2012 · The fact that this happens does point in the direction of the battery rather than to the immobilizer. Does anyone have experience replacing this part, and if so, do you have to re-program the keys? About Genuine Volvo The original parts used by Volvo to build your car are available as replacement parts under the “Genuine Volvo” brand. Figured it must be the CEM, so I sent the CEM/ECM/Key to Xemodex and they found no faults. If the key is not the correct one, this system blocks different actions to prevent the car from starting. Fit model: C70, S70, V70, Volvo Immobilizer Antenna Ring - Genuine Volvo 9442961 is produced in Volvo auto parts factory, so we guarantee high quality spare accessories that is affordable, reliable and built to last on Volvo cars. SUITABLE TO FIT-. Usually, possible causes include a damaged immobilizer antenna or the need for a software update to the latest immobilizer version. I have an ECU with part number 37820-PLM-L54. Whether you simply need a new seal on your dishwasher, or whether you're looking for a high-performance pump to replace your old burnt out one the team at Household Appliance Parts are the crew to call. The connections on antenna ring and on the immobilizer control unit that is next to steering column need to be cleaned and have the female terminals closed down a bit. The immobilizer system uses an antenna ring around the ignition lock to read the transponder key. Is the antenna related to the ‘720A Immobilizer Communicator’ code on a Volvo S70? To understand the issue better you need to be aware that the immobilizer system constitutes the control module, antenna ring, engine control module and the wiring between them. Electronic failure: any of the contacts or internal electronic components of the module or the computer may get damaged. 4% positive The Immobilizer System consists of an electronic device with integrated coil, called ‘Active Antenna’, the crypto transponder, which is integrated in the ignition key, and the Immobilizer-Control-Unit (ICU). I replaced the ignition antenna ring but can't get the engine to turn over. The only test plan is for the… Apr 14, 2015 · About this item Genuine Genuine part that fits your specific vehicle Ignition Immobilizer Part Number: 8621509 Manufactured to meet specifications for fit, form, and function Less frequent causes: Damaged antenna: due to electrical reasons, the antenna may stop working. . Checking the Ignition Antenna Ring The ignition antenna ring surrounds your key slot and reads the transponder signal: Remove trim around the ignition cylinder Inspect the antenna ring for visible damage Check connections to ensure they’re tight Oct 27, 2023 · Your Volvo key is not being recognized. Product Fitment Notes & Potential Issues Fits the following applications: 1999-2006 S80 models chassis number 383596- and higher 2001-2009 S60 models chassis number 425140- and higher 2001-2007 V70 models all 2001-2007 XC70 models all 2003-2014 XC90 models all Your chassis number can be found as the last six digits of your VIN. Volvo 9442961 dr sn t5 xc 2dr 4dr 5dr awd c70 fwd glt m56 me7 p80 s70 v70 1998 1999 2000 2001 2002 2003 2004 aw42 conv door me44 ring v70r coupe cross denso sedan turbo volvo wagon 236061 aw5042 aw555x b5244s b5244t b5254s b5254t 9442961 antenna b5234t3 b5234t6 b5234t8 b5234t9 b5244t2 b5244t7 b5254fs country genuine nonturbo immobilizer Mar 9, 2023 · How to Fix Engine Immobilizer or Transponder Key Problems If you’re having problems with your engine immobilizer or transponder, the first thing you should do is replace the battery in your key fob. Apr 14, 2017 · by oragex » 14 Apr 2017, 11:30 Not a common issue, but there were a few antenna ring failures. Manufactured under the direction of Volvo, expect excellent quality and a premium price since these parts are exclusively available through the Volvo Dealership network. Subscribe: / carsntoys Tools: Trim Removal Tool Set - https://amzn. Customer: I have an S60 T5 and got a message fail to start try again later. Feel free to contact our Mar 25, 2018 · Gives an immobilizer-see manual warning. I have read where people will have issues with their car starting due to a failed ignition immobilizer antenna ring. Replacing the key looks like a $300 expense so that will be last. In the end - a new steering column lock is bolted on and everything works! Find Genuine Volvo Ignition Immobilizer Antenna 9442961 at discount prices in our extensive Volvo auto parts catalog. The old part being unplugged and new part plugged in does a weak job of cleaning connector and it can be a few months fix. Cleaning connections and resetting the immobilizer system by disconnecting Volvo S60 AWD will not start/turnover got message immobilizer see manual. While this is only true for vehicles with a push-start ignition, these problems are far more common with this type of ignition system. The DTCs reported are CEM: 6C48-transponder type faulty signal and 9C03-Antenna/light ring signal missing, ECM: 710B-Immobilizer communication-signal missing. when I tried later the car started ok. Use a diagnostic scanner to check for immobilizer fault codes. Its now about once a month. Text "Immobilizer start prevented" Points towards antenna ring or key, but can randomly occur due to other communication disturbances. Apr 28, 2024 · Dears, do you have some schematic, or step-by-step instructions to reach the immobilizer module and antenna ring on the ignition switch? My problem is not recognized code, after starting, red diode starts blinking fast. It's the same part used from 1997-2005 for any X70 car with an immobilizer. Apr 23, 2004 · I'm going to change the antenna-ring at the ignition switch in my 2000 V70 because of a problem with the immobilizer. Sep 13, 2009 · Subaru remote start immobilizer interface antenna ring and antenna ring placement clip mounting instructional video. Find everything you need for your next adventure in our selection of volvo immobilizer antenna ring replacement! Product Information This Genuine Volvo immobilizer antenna double checks the key transponder to give the ecu the go ahead to start the engine when you turn the key. Jul 9, 2015 · 2006 XC70 Antenna ring replacement by scot850 » 09 Jul 2015, 21:57 We have had a couple of instances recently in warm temps (>30C) when a family member has driven the car (06 XC70), switched it off, and when gone back to start the engine won't turn over. The problem The antenna ring sounds like your problem but there are things you should do first. The start prevent message may have occured when the electronics had not enough power for the ring antenna circuit. NOTE: This includes non-Volvo key fobs. Looking for high quality, genuine spare parts for your household appliances?. Replace tt with t (twice!) and remove parentheses to email me directly. All fuses test good with continuity tester Antenna keyring contacts look spotless The immobilizer system in the Volvo S40 is integrated within the ignition lock cylinder and ECU. I still have the immobilizer message in the message window and I'm told that there is a restarting sequence required to get the engine to run. The other fob could be causing interference with the immobilizer. The immobilizer message often points to a faulty antenna ring around the ignition barrel, which reads the key’s transponder. Aug 24, 2018 · Chip in the key in for cars from '96-'99 communicates ONLY with immo control module under the dash via antenna ring around ignition lock. To troubleshoot, inspect the antenna ring for physical damage or corrosion around the steering column. If you need a full on immobilizer module replacement, you likely need programming, new keys, new fobs, etc. Customer: Hello, I recently replaced just the immobilizer antenna ring assembly around the ignition. Feb 17, 2024 · The Volvo may have trouble starting due to the immobilizer failing to receive the signal from the key. Willy The antenna ring reads the key’s transponder signal to disable the immobilizer. Any thoughts? Antenna ring? My alarm module has been broken, I have the new one just haven't installed it, could that be the issue? Thanks in Aug 10, 2014 · I got the new V70XC running yesterday but about half the time it simply won't start. check connection with antenna ring. To fix it, you may need to reprogram the key, reset the system, or replace the immobilizer unit. - I was working on it myself. I now suspect the immobilizer unit. Sep 14, 2010 · Q: Hi I have a 2000 c70. I have the original key that matches my ignition and ECU, so I should be fine and not need to reprogram anything, correct? I have a quick question about my Honda 02 LX. I show you all the components on the car, I remove them and explain each one. Aug 1, 2025 · The fact that the key is being recognized as "Main Key" and Key #1 indicates to me that the antenna ring is fully operational, and that the failure point is located in the CEM stored ID code that is checked with that of the Key Fob. I'm going to change the antenna-ring at the ignition switch in my 2000 V70 because of a intermittent problem with the immobilizer. - The starter won't turn over, but all instruments are functional. Does anybody know if the antenna-ring Oct 21, 2015 · That said, usually it is a bad connection at the antenna ring and unplugging the connector and giving it a shot of contact cleaner will cure it. Use a very sharp pick and push in the sides of the socket terminal. It has the different ignition positions I, II, for example printed on it. Volvo C70 Ignition Immobilizer Antenna parts online. We Searched New Genuine Volvo Immobilizer Antenna Ring fits XC90 S60 S80 V70 V70XC 8621509 discounts, product reviews, and coupons over the past year for you at antennasi. If these are fine, inspect the starter circuit for faults. I have tried exchanging the antenna ring for that of the other car, but then none of them starts. In order to learn how to fix something, you must first learn how to break it. to/32QMx3p Digital Multi-Meter - https://amzn. Inside that, there is a wire loop that serves as the antenna. Customer: - Replaced the antenna ring around the key on a Volvo V90 from 1998, and now it won't crank. ). Xemodex is now recommending I disconnect the Differential Control Module DCM and if there is a fault with the DCM the engine will start. Easy to replace with a used unit. Plug & play - no programming required. It stops the key from communicating with the ignition system and the car will Immobilizer antenna ring Hey all, a friend's Volvo is having intermittent starting issues and I think it may be the antenna ring due to the immobilizer light coming on. Dec 27, 2014 · It is the ring around where your key inserts into the steering column. Find many great new & used options and get the best deals for VOLVO V70 MK1 Immobilizer Antenna Ring 9442961 OEM at the best online prices at eBay! Free shipping for many products! No programing required for just replacing the antenna ring. So a simple "remove and reinstall" can sometimes help get rid of the problem. Another somewhat common problem is an issue with the ignition lock cylinder not actuating the ignition switch properly. OP has already replaced ignition switch Wouldn't hurt to replace "the ring" given the ease and the price but something tells me there's more going on here. 1 PC Car Shark Fin Antenna, ABS Paint Process Shark Fin Tail Waterproof Rubber Ring Stable Signal Receiving Antenna, Replacement Car Roof Decorative Antenna Cap, for Cars (Carbon Fiber Black) 13 $899 FREE delivery Thu, Mar 6 on $35 of items shipped by Amazon Dec 10, 2012 · if you want it fixed replace all of the terminals at the immo module, antenna ring and B:22 of the ECM. How can I fix an immobilizer problem on a Volvo? Mar 2, 2013 · - Is this an immobilizer issue ? - Where is the antenna ring and how to replace it ? Would this replacement require a dealership service reprogram ? - What further DIY things should I perform before calling in professional service ? I will be glad for your comments, experiences, & information. Buy OEM & Genuine parts with a Lifetime Warranty, Free Shipping and Unlimited 365 Day Returns. I replaced the antenna key ring and no difference. We would like to show you a description here but the site won’t allow us. May 28, 2021 · When you put in a new immobilizer antenna ring, do you not need to reprogram the keys? I brought in all 3 keys, the dealer took only 2 master keys, not the valet, but all three keys start the car after they did the work. Do you have an antenna ring and or immobilizer?…also do you have the rev sensor for the same? A:Hello, I do have the ring but if it goes to the immobilizer you cant replace just the immobilizer, if yours failed you need to buy it new from the dealer and program it at the dealer, these can be only programmed once, otherwise you need to replace the whole system Find many great new & used options and get the best deals for Genuine Volvo Antenna 8621509 at the best online prices at eBay! Free shipping for many products! Customer: My 1999 S80 went into "immobilizer" mode. Ignition immobilizer antenna ring replacement on a Volvo S70, V70, XC70, etc. Whether it’s a high-performance EV, an autonomous tractor, a commercial aircraft, or a deep-sea vessel, Standex Detect delivers the reed switches, sensors, relays and emerging technologies that make modern mobility possible. Ignition Antenna Ring The slot where you insert your Volvo key has a ring. Unlock/lock 5x, key on/off 5x, service reset, disconnecting the battery overnight. a $50 part. If you start swapping ECUs and the immobilizer then things need to get mated to your car and your key. How can I fix an immobilizer problem on a XC90? Nov 1, 2025 · Part Number: 9442961. ) Dec 14, 2024 · If that does not make a difference, then the next simple check is to remove the antenna ring from around the ignition key barrel. Usually, the no-start issue lasts maybe 20 minutes or so, but just last month, the Jul 3, 2013 · Lets start from the beginningis the car just not starting because of the antenna ring at the ignition key? If so, yes, it's possible to replace that with a used part, though usually, the contacts just need to be cleaned. Feb 12, 2015 · the antenna ring is the actual circular thing that goes around the ignition lock which lights up to guide where you put the key. If matched, reprogramming is usually unnecessary. com, search on "antenna ring" -- Mike F. How to test and replace a car or truck immobilizer unit. Check counters in the Vehicle communication / extended fault-tracing information window. Pulling the antenna ring for replacement, pretty easy except for the annoying steering column panels. Dec 12, 2006 · The antenna ring, the receives info from the key chip is a weak point. * If nothing else works, replace the immobilizer antenna. Jul 21, 2011 · install immobilizer ring If you are referring to the antenna ring that is actually the round part that surrounds where the key is inserted, then it is very easy. Thornhill (near Toronto), Ont. Aug 22, 2023 · The antenna ring is plug and play, just replace it. The symptoms are consistent with an antenna ring problem so I ordered one t My 1997 Volvo V70 developed a strange crank no start symptom caused by the key chip and / or ignition barrel antenna failing. started a - Answered by a verified Volvo Mechanic Volvo Antenna parts online. Here's how to lock the car for long term storage so you don't get a "Start prevented - try Replacing the immobilizer antenna ring around the ignition requires ensuring the original key matches the ECU. May 15, 2025 · This approach has solved immobilizer issues in many P2 platform Volvos (2001-2007 S60, V70, etc. (But I check the newsgroup more often than this email address. My dice is giving my PC a USB power surge issue so I couldn't clear it up. If the problem is not solved after testing or charging the battery, other possibilities can be explored. May 26, 2011 · * If you have more than one key fob on your key chain, remove it and try again. VOLVO V70 MK1. Fits Volvo V70, C70, S70. There is a little tab that will likely break on the side nearest the steering wheel but not a concern. This could be due to an issue with the immobilizer or a damaged key. google. It's a series connection with the CEM directly and is not networked. May 11, 2024 · 2008 VOLVO XC90 IGNITION SWITCH IMMOBILIZER ANTENNA RING 8621509 OEM. If faulty, symptoms include no-start or immobilizer warning lights. Or maybe the chip inside the key got damaged. Just take the screws out at the bottom on the steering wheel housing and lower the bottom half. I tried every DIY immobilizer reset I could find online, and none of them had any affect on getting the car out of immobilizer mode. The client replaced the battery but did not follow the Volvo battery replacement instructions; another technician recommended the starter relay, but I diagnosed the concern related to the Immobilizer system. The is the Cover Ring around the Ignition Switch. According to my mechanic (20+ years of Volvo experience) the connector between the antenna ring and the wiring harness sometimes causes problems - taking it off, spraying it with contact cleaner, and re-seating it fixes these. After that I must do the reprogram procedure with 4times on-off until the diode continuously light, and pressing any button of the key while diode turns off. AutohausAZ offers a large selection of Genuine Volvo parts online. A weak battery can also cause communication failures, so test and replace if needed. qlfl mmttn tcejp mmoi bogfn kofwp ivhvk altq gfoehz llnf mtqqf gajlf ugkrz ralkmo xinnv