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My fob is inop. Fair enough, it hapens.
But.... the key will lock all doors and SOMETIMES set alarm. (Well the indicators flash..I guess that means it is set?)
Then SOMETIMES it will operate central locking and kill alarm, other times it will just open drivers door and the alarm goes off...
Does this mean faulty key?
Faulty system?
Do I need a can of petrol and a match...?
I'm in a similar bind. I have no Fob. I locked the Car last night and when I tried to unlock it, nothing happened. The Alarm is activated (as denoted by the flashing red light on the lock button the center consul).
I left the car last night since I didn't want to torque everyone off by setting off the alarm so late, and when I went back today, I set it off when I opened the truck. I had a locksmith come out, and pop the lock (setting the alarm off again of course). But, as you can imagine, I was unable to start the car.
Using the Key to deactivate the alarm is a no go. The key will no longer lock or unlock the doors.
I'm wondering if I can try to track down a new Fob ($$$) and then, once programmed, disarm the security system. But that's going to take some time and money. I've read several of the posts on the topic so far on the forum, but I haven't seen anything that can help me disarm the alarm manually (other than using the key, which, as stated is a no-go).
Maybe there's something in the Door-lock mechanism that is failing? Any thoughts out there?
-HC
EDIT: I guess the Key Fob wasn't as expensive as I thought. I just picked one up. So hopefully that will give me access to the car again, but I'd still like to know what's going on here.
Last edited by hailcesarz; Oct 21, 2014 at 03:36 PM.
I've never experienced this issue but it sounds like an issue with the security ecu located in the trunk behind the filler neck?
Could be that it's starting to become faulty or a bad connection with one of the harnesses. ( think there's 4 connectors that plug into the unit)
There are indeed small micro switches on the door locks that sometimes cause problems, either because of corrosion, poor connections etc.
So, although your key will unlock the doors, if a switch is faulty, the alarm reads this and so, might not disable the alarm, or will activate it unnecessarily.
The swicth on the boot lid is a likely candidate due to water ingress. Easy enough to see by removing the boot lid liner.
A fob won't necessarily solve the problem as this is only activating the locking system by another means, whereas the underlying cause to the problem is still there.
I don't think it's the Micro switch in the trunk, since (in my case) the key fails to unlock or lock the doors. I thought about Key transponder failure, but that seems somewhat unlikely since both the Black Key and the Valet key both quit working at once.
On my end anyhow. There is a linkage between the arm that actuates the security system and the wheel that the key turns. In my case, that linkage has failed, sot he key turn isn't actuating the security system. I can manually pull or push the arm, and it works fine. So it's just a matter of repairing or replacing that linkage.
On my end anyhow. There is a linkage between the arm that actuates the security system and the wheel that the key turns. In my case, that linkage has failed, sot he key turn isn't actuating the security system. I can manually pull or push the arm, and it works fine. So it's just a matter of repairing or replacing that linkage.
Hello, I am new to the forum and have a 97 XJ6L I went to put in a new battery and all of the sudden the alarm started going off. I only have 1 key for this car and no remote/FOB. So what do I need to do to get the alarm to shut off and allow me to start the car? I have look here as well as a few other sites but all sequences suggested are not working. I do not see a valet or bypass button/switch. So any suggestions on how to shut the alarm off?
LOL...I love my Jag but these tend to be tempermental problem children, I have to laugh as I can't tell you how many times I wanted to do the Petrol & Match plan also. I suggest you find yourself a Jaguar mechanic that just works on Jags. I was taking it to someone who claimed to know what they were doing and believe me it was a on going nightmare. For anyone that lives in the Houston, Texas are, Mike @ Champions Jaguar is the BOMB, located on Cutten Rd. he only works on Jags and have many years of experience and is reasonable as far as that goes. Parts for those things are expensive but he know everything there is to know about those cars...he is very busy for a reason he knows what he is doing...GOOD LUCK!!
Help!! Same problem alarm won't stop and car won't start
I just bought this car and it was sitting for awhile so battery died and now when Ihook it up the alarm just goes off and won't stop the key won't unlock the door and it won't start the car. I don't know what to do??!!!! I just used all my money to buy the damn car
Soon you will have the prettiest.Jaguar on thwe whole block , what's her name ?
To get a overview of what your security system should do with chirps and such see video in the security section
Basically the way the security system works is when you remove the Key it will make a linier key switch to start a security system sequence to end in the security system going to sleep
So this not making of the switch from pin 4 to 5 will cause the security system not going to sleep and will drain the battery overnight in what is called a parasitic drain
To know that your switch is making your steering column will move on key removal
This linier switch is common to stick and can be a mess if spraying with oil so caution there
The security system must satisfy agreements like the doors and trunk closed switches and seat and steering column positioned to exit position
You can turn the large rotary knob on the steering column from auto to off to remove this section of steering column agreements
Somewhere along the way one of the security agreements may have hung up putting the logic steps out so the security looks you out
Aside from the security system there is a inertia / crash switsh that will prevent you from starting with a reset button forward of the car's front right door hinge by your right ankle
This switch will trip for no reason and prevent car starting , there is a work around
This is a pic of someones right hand steering model and the switch will always be on the cars right
The fuel pump will run for 3 seconds only with key rotation so this can fool you in what you expect , this is a safety design for crash also
Ask questions and someone will help you carry on forward
You can modify the original Jaguar / Alpine stereo head to have a input jack for any input device , this is different then a low sound quality cassette tape device
And the original speakers will most likely have dry rot of the speaker surrounds ( so you may hear a rattle ) that can be replaced ( real cheap ) keeping the original speakers
The inferior silvering of the X300 headlights can be swapped out with the much better X308 version with the V 8 engine
You can look at one at a salvage yard and see the difference
Don't remove yours yet to clean but doesn't do much good , there is a orientation for each lense assembly that you can get lost on to install correctly
The chrome side mirrors can be swapped out easily
The clear coat on the wheels are aged and won't clean up to a point no mater how mush polishing you do
The clear coat can be removed with paint stripper back to bare metal , washes off with garden hose , try with your spare wheel
Last edited by Parker 7; Apr 27, 2023 at 10:44 AM.
Your repair manuals can be found in this link and other sources
You have the AJ16 inline 6 engine ( starting on page 51 of the 801s Doc ) which is the final refinement of the AJ6 engine with earlier versions used in the Jaguar E Type of the 60s
The only way to reset the sounding alarm is to put the key in the ignition and turn it to ON (position 2, when the dash lights all come on). That will deactivate the alarm system.
If the battery cable is removed during alarm state, the car will remember that it is in alarm state and keep sounding again when the battery is reconnected. Its for theft prevention. At least in the US the car does not have a transponder key, so that simplifies the electronic security.
Then, you can get to all the other needs to get her running again. Begin with a good fresh battery.
She is probably pulling the # 4 fuse in the trunk to the security lock control module to silence the alarm
She needs to respond back when possible
The fuse must be reinstalled for the car to be able to start as the SLCM must be powered as it provides a enable to the body processor module for starter rotation
Last edited by Parker 7; Apr 28, 2023 at 10:09 AM.
Key won't turn off alarm
Help!! Same problem alarm won't stop and car won't start
