This was an excellent video. I have the exact same problem with the exact same car and model year. The Jaguar dealership has had it four times and couldn't figure it out, new battery etc all repairs that didn't work. Still sits there unable to start. For some reason placing the key in the drivers door, locking it and unlocking it and repeating that cycle again seems to reset the key and starts some of the time. It looks like I need new keys, something that wasn't even suggested by the experts. So thank you very much for this video, it was the most in depth and accurate video I have seen with this problem... People should also check to make sure the light is engaged by the Park Shift as the car won't start if it doesn't recognize park at the shifter either... This model year is plagued with this problem you solved... Thank you!

Jaguars don’t need fancy security immobilizers to prevent theft .......they don’t start half the time .

This video helped me immensely this morning. I was using my backup key the last couple weeks after digging it out because my doors locked on me mysteriously at the gas station. Tried starting 2003 XJ8 this morning with that backup key and .........nothing. No crank. Put battery on a charger most of the day. Noticed it was drawing some amps, so figured that might be the problem. Came back to fully charged battery later on.....still nothing. No crank with backup key that worked up until now. Watched your video and the light bulb went on. Sure enough, tried my original every day key ......VOILA!!! Started right up! Maybe these keys are getting to an age where they are going to be a high fail rate part. Pass the word.

Excellent collaboration. You two worked well together! Great minds narrowed it down quickly!

Good job. This happened to my 98 XJ8, sometimes pulled the key out and flipped it for 180 degrees and worked. Now I am using the valley key.

I'm new to Maik Salazar channel, so I'm glad to see we both like him! Great job both of you!!

Looks like you boys are having a good time out there on Staten Island!!! Always interesting case studies. Usually easier working as a group! Looking forward to more videos

Did u check if the transponder didn’t fall out, it’s at the back of the key, over time they fall out often if key is dropped

Ivan, you need an multi-frequency RFID reader that you can place near the key to see if it is responding. It is likely that RFID chip in the key uses the low frequency radio (the power lighting your LED device) to re-transmit the correct numbers back to the car. Even if you couldn't actually read the data, you would then know at least if the key was dead or not. Maybe this key was dropped one too many times ......

Thank you you just solved my no crank no start security immobilizer codes I was having

Jags are notorious for problems. Over engineered and kaching$$$ when they take a shit. Cool little key tool. Nice job Ivan and Maic.

I drive a Jaguar X Type 2004. First thing I did was get 2 clones of the Key made. I always drive with 2 Keys to help prevent this issue. I do live in England so new and used spares are cheap and easy to get. And I think having only one old Key for your Car is rather foolish.

Thank you Ivan and Maic. Good job. Have a blessed and safe week.

Awesome collaboration. Thanks guys!

I'm waiting for the day where the problem is a no crank, start.

I believe that the security indicator light is not at the top of the dashboard,that is the ambient either temperature or light sensor. The light your looking for is a little LED directly left of the gear shifter. Typically people miss it because the LED is finished smooth against the moulding, When you run your finger over it you don't realize it's there

Great video my friend!! Keep them coming! Can wait to see the Toyota one!

[thank, you for you're video. I, own a 2004, x type 3.0 jaguar. I'm having the samething going on with my jaguar just like the one that you're working on. now this is what I did I, made a jumper wire and put the jumper wire were the starter relay is at then I shot 2 sprays of starting fluid in to the air box. then I got back inside the jaguar and turn the key on then the jaguar started up only off of the starting fluid. so I know that the starter checks out good. everyone is telling me it's the electric fuel pump gone bad. so I did what I could do. so next I cannot figure out what else it could be. I do notice that I got 3 fault codes that popped up on the cluster. so what my plan is to load up the jaguar on to my roll back and carry the jaguar to the jaguar dealership were they can work on it.👍]

I just got my Launch X.431 Diagun IV .. did my 1st diag .. awesome tool.

I had one of those jags. It was an 88 had full real wood grain dash steering wheel and. Center consul with a phone in it.

From Jagrepair.com : "Take your transmission shifter and put it in the “N” position from “P” and try to start the car. The shifter selector switch has been known to wear out or out of adjustment causing a no start situation. If the car does not start put it back in “P” and check the inertia switch. The inertia switch is installed next to the fuse box in the LH end of the fascia. When activated, it de-energizes the ignition relays in the engine compartment, driver's side fascia and trunk fuse boxes. It also removes ground inputs from the BPM and windshield wiper stalk switch. This stops the engine and fuel pump, unlocks any locked door, and de-energizes unnecessary electrical systems. The switch is reset by pressing down on the rubber cap on the top of the switch. If your doors lock, windows, seats and the wipers work and the dash lights up then all should be good, but if it makes you feel better reset the inertia switch. Check that you have a fully charged battery and that you have power to all fuse panels. First check that you have 12V + a few. This is important and should not be taken lightly. For whatever reason these cars are sensitive to fluctuating and low voltage. Depending on where you are you can take your battery to AutoZone, PepBoys or Sears and have it tested. This test is performed using a tool that is not just a volt meter. It examines the integrity of the battery. In most Jaguars you have a fuse box in the trunk, the drivers and passengers section both left and right and two under the hood. You will need to check voltage at each fuse box. If voltage is not present you need to check the fuses in the High Power Protection module."

Good luck with the new key it is one thousand dollars very nice job

Only one key, asking for trouble and getting it lol.

Seeing you using the Diagun I remembered I have to get my butt into gear & upload that video of Launch on my old S5!

Jag keyfobs have a pretty significant failure rate over time. The issue is, I have yet to see a third-party scantool capable of successfully reprogramming, or programming new fobs. There's a million and one different "dances" you can supposedly do if you have two keys, but more often than not, they don't work. If memory serves me correctly, you can order new fobs from any of the various reputable sources online, disassemble the fobs, and swap the physical key into the new fob, then program the car to accept the new fobs. See if Keith has a Magical Pringles Can that's able to do the relearn, if the launch is unable. :)

wow, you smart man.. He needs to get another key made and fo from there.. I have a JAGUAR car channel here but you really know car,, great job..

Even it was 3 years ago, I found info: to program key - put key into 2nd. position of ignition switch (dash on) and press lock button (padlock) for few seconds. I don't know where that button is but easy to look around inside. Maybe door must be closed too. So if the transponder in key is ok all should be fine.

Remember the good old days when you could start any car by running a wire from the battery to the coil and use a screwdriver to jump the starter?

Hey Ivan, it's worth understanding clearlty exactly what the flashing on the key test coil indicates. Tell me if I'm wrong, but the most it can tell you is that the Ignition cylinder antenna coil is receiving a V pulse from the immo module? It does not tell you if the embedded key chip transponder is sending its code even though the magnetic induction from the transponder does also pulse the cylinder coil. There is really no way of telling from the test flash LED whether this indicates just a good pulse from the key module, or a good pulse from the key module and then from the key transponder. ie you don't know if the transponder is good or bad? Do you think that's right?

Ivan, Interesting case study - thank you for posting this! I think a 2001 Jaguar is a Fordguar and perhaps its security system/immobilizer is similar to Ford's PATS system from that era so you may want to see if there is any info there to be gained. God bless Paul

Only the best in English engineering.

2000 XJ8 owner here. No scan tool. My diagnostic tree...try to start after each. 1. Put gear shift in neutral. 2. Check vehicle battery...connections/internal short/correct voltage. 3. Disconnect battery and reset by touching terminal ends. (this "fixes" my no power to driver window/sunroof issue everytime.) 4. Check to determine if fuse/circuit breaker for ignition system. 5. Look at wiring (rodent damage/corrosion) 6. Voltage at starter and starter relay. 7. Tap on starter if it shows voltage...bad spot in armature or brushes worn out. 8. Call my local independent Jaguar (non dealer) specialist. Boffo Motors, Inc (Jag/MG/Fiat) Gary Boffo, 724-843-3181, New Brighton,PA (3 year owner, have not had to go beyond step 3.)

All this crap just to start a car.

I have one of those transponder detectors too. Best $5 I’ve ever spent 😂

looking forward to some more of your new footage Ivan, hopefully will all be uploaded soon!

I would say its an immobilser issue becuase the security indicator should flash or stay lit. Its the module that produces that ground signal so the security indicator flash.. but i might be wrong in this case. I would love to see the fix. Please a part 2

Yes, it is an old one it has a cassette tape player.

great video Ivan and Maic

That diagun is a pretty amazing tool. But of course your combined skills helps keeps things on track.

Jaguars make me swear alot. 😁 Nice diag to figure out that one! You guys make a great team there. The Staten Island automotive gremlins don't stand a chance. 👍🍻

Shut the door and lock it, use the key to unlock it and see if it helps first thing.

love the diagnostic tool ..

How do these keys work? Is it just like an RFID tag? Can you read them out with some other RFID reader to check if a value comes back? Kind of hard to believe a passive key can go bad... Maybe he put in the microwave by accident 🤣

I'd be torn between the transponder chip being missing from the key(cracked or split) and or the transceiver/coil having an issue.

try smackin the key around some times hitting stuff works seriously it does

Good case study

A Jaguar model X...pensive

I would of thought even if it was a bad key the vehicle would still crank over and just would not start ?

Alarm Led is in gear selector. That the climate sun sensor on top of dash

Ivan Can the Autologic blue box program used keys on these? I know it can with other models and has a key decoder for the barcodes. I’ve done hundreds of used land rovers fobs this way. The transponder is probably able to be viewed in their software too. Don’t know if Keith has t he software or not. Snap on/aftermarket are pretty piss poor when it comes to UK stuff and programming/genuine data- pinch of salt. I’ve also fixed these keys by reflowing the solder on the fobs many times.

my first check with a tool can you read key . then with another tool can you read transponder

It's a jaguar thats your problem lady. Lol.

These cars use that crappy Ford key which will also tear up your pockets.

Very nice video.thanks

You two should make your closing arguments in a different pose (Prior to bonus footage). I was terrified it was going to turn into another sort of video at any moment.

Looking back at the codes I would check the engine ecu has power. Mine wouldn’t crank when the engine ecu was swapped so plays a part in cranking. And you had system voltage codes

I have the same fault p1260 on my 2002 Jaguar x type wherein scanner indicates anti-theft is activated. Indicator lights are on but no crank with original two keys I have and does not recognize both. Transponder module is working. Is it possible that the key transponder is dead because of the age?

Would like to know where I could get that ring you had to check key transponder.

Is there a way to program the guys key to work? If it worked before maybe it just needs to be reprogrammed into the system to be usable again.

[back, again. / I called the jaguar dealership and they told me this. The reason why my jaguar won't crank and won't start is 1. check the starter relay. or 2. bad electric fuel pump. or 3. the jaguar needs to be reprogrammed and i would have to give them over the phone some info on the car

Why don't you enter the EKA code via the drivers door locks and if it recieves it at bcm put key in ignition engine should start quick check to make sure that bcm and pcm work crank run and then further investigation

What about the wiring between the ECM and the KTM? You checked and found no signal from the KTM at the ECM, but did you check to see if the Y and W output at the KTM is working?

Weird British logic? Just like the way they count the second floor of a building as the first floor. The first floor apparently doesn't get a number.

I saw one video of a guy with a mustang that would not start like this and he put his key by a magnet and then the car would then start !

Did you guys disconnect the battery a lot of the times it helps

Jaguar 😲

Could the neutral safety switch cause this?

Does Jag still use LUCAS ELECTRIC? I remember watching a show about cars and the host said Brits drink their beer warm becauze even Fridges are made by Lucas.

Any confirmation I have tested with two keys both original though same conclusions. Can run car with fuel pump jumped. Code stays p1260

I would agree, seems like a bad key.

Any luck please? I have the exact problem

Ivan, You are a super smart guy. So you should know that those car are nothing but a poses.

Hi Ivan could it be some kind of programming fault, maybe something needs reprogramming?, glad you like British logic lol, 0-1 from Fred in Uk.

I have a 2003 Jag X-type 2.5 doing same thing. I have 2 keys and neither one will start it due to security immobilizer problem. Should I have 2 new keys cut, or might it be transponder module? You purchased the ring around ignition with LED from Keith? You guys are good! Thanks

Great logic exercise, is there any way to check the key's logic

Nice !

Not even similar to the Mercedes parasitic draw from the ignition key being programmed by a 3rd party, but same territory. Perhaps a replacement lock with the key from Jaguar ? OK if the owner is a millionaire. Interesting to see how this resolves.

Friend you Ave proble between the computer and the board

Please tell me how to get another key and program it? I have a 2003 Jag x-type. I have both keys. They will lock and unlock and when put in the ignition will allow the lights, Air conditioning, radio etc, but eveidently not allow fuel pump to send fuel. I asked the Little Rock Jaguar dealer if they could help me, they said they don't work on Jags that old and said the key's not the issue, but that's all they would say about it ...

Have you guys tried putting in a New Battery ? Maybe its That. I Had my mom 2017 KIA with no crank and i tried to charge battery for a day and all it done was light up and hear radio. I jump it and started but when turn then again no start. New Battery sparked all up again.

I got one my aunt gave me and no start and only one key so idk what to do with it

And if that doesn't work change all the fuses and relays

Anyone else shocked that 2001 Jag is still on the road to begin with?

Did you start the jaguar yet? I'm sitting with the same problem with my xj8, I do have both keys but neither one lets the car crank...What was the solution?

I have the same problem with my 96 I use the module first then it wouldn't start then I got out locked it back with the module unlock the it manually outside the vehicle then it started

I have a no crank issue my fuse box clicks and red light flashing on dash whenever I try to crank it and the key fob isn't working even after a new battery I noticed a crack in the board could it be that ?

@Pine Hollow Auto Diagnostics #BOOM!-it's-always-krown-time

Hello! Everyone in here I have 1997 jaguar XJ6 L the car is not locking or unlocking with the fob just with the key have no interior lights headlights not working and no crank at all I try started with the direct wire to the starter and the car is running any ideas how to fix this issues? Thank you all in advance. And the swifter not moving even when the car is on

Since this is an older system, it makes me wonder if the system could be tricked (bypassed) into allowing the engine to start by connecting a test light to battery + and then connecting the other end to the "OK to start" wire, then turning the key to the on position and attempting to start the engine. It might work, but I don't know exactly how this system functions. Could it also be a possibility that the "OK to start" wire is open between the key transponder module and the engine computer?

See you have it figured out right in the title of the video. You tell the owner you figured it out it's a piece of Jaguar junker and send it to the scrap yard.

Hi Ivan do you know where I can get that tool that you got from keith ? would love to get one ! thanks again Joe

Hello, how did you finally solve the problem? I have, exactly the same problem with my 1997 sovereign. Thanks

Can't you just wire a resistor in and bypass the KTM?

I think it's unfair to call British logic system in this video, logic state 0=low, logic state 1=high, your reading it like it should be saying on/off. If you read what it says at the top of the column it says "VALUE". I bet if you look at code setting criteria for this it will tell you the inputs are active high or active low therefore what your seeing is the logical value of the input/output. On an active low system taking the input low can actually switch something "ON".

does the key have a internal battery?

Jaguar has immobilizer built in by the shifter itself. Check and see if the letter “P” is illuminated and if it is not move the J gate back and fourth in order to disengage imobilizer. The other thing as well is to disconnect battery for full 5 minutes and then re connecting it again. Valet button press firmly in the center arm rest and make sure it is switched off. In the passenger side footwell there is also fuel/imobilizer switch and should be checked too. These are just a few common issues that will Cause the Jag not to start

Alarm system ? Cutting comms between bcm, key module?

Savin' codes, throwin' parts?

Do my dog could have found that problem and about 2 meanings may be 3

What scan tool are you using . I'm trying to decide which one to buy.