Hello j-lovers,
This is my first posting so please forgive me if I’ve not got the
procedure right.
I got my 1991 4.0 Jag Daimler just 4 weeks ago and I’ve been slowly
learning how it all works and am reaching the stage where I feel bold
enough to start ‘tweaking’ to get the finer points sorted…
The problem originally was/is that both A/C cooling fans do not work on
low or medium speeds but both seem OK on high.
Having read the article in Jag-lovers online books I decided to have a
go.
Because I was unable to locate a couple of Darlington 2n6284’s ready for
when/if I got the blowers out, I decided to have a look at the A/C
control panel hoping it was a simple (?) switch problem affecting both
fans. (The panel looked more complicated than I expected so I put it all
back.)
The Problem Now
Following the Haynes manual I disconnected the negative battery lead
(nothing was switched on when I disconnected) and now when I reconnect I
get a Squawk (about one second intervals) from an under bonnet speaker
at the front right of the engine compartment and the parking lights and
tail flash at the same time.
The squawk persists at all ignition switch positions but stops squawking
when the engine is running.
Please can some one tell me what I have done wrong - or neglected to do
when I disconnected and reconnected the battery?
Thank you in anticipation.
Richard.–
A.R.Mills
JEC#11922
Somerset U.K.
get a Squawk (about one second intervals) from an under bonnet speaker
at the front right of the engine compartment and the parking lights and
tail flash at the same time.
The squawk persists at all ignition switch positions but stops squawking
when the engine is running.
Please can some one tell me what I have done wrong - or neglected to do
when I disconnected and reconnected the battery?
The “squawk” you here is part of the security set up. I take it you have the
key fob with the button in it for the central locking and alarm setting. I
assume you get 5 squawks when you reconnect the battery. After each squawk,
press the fob button. the 5 squawks all ow for up to 5 fobs to be
programmed.
Incidentally, I would assume your alarm back-up battery is dead, if it was
OK, there is no need to go through this. Have fun trying to locate the back
up battery, Jaguar had a number of places where they hid them
In reply to a message from A.R.Mills sent Mon 12 Aug 2002:
If it’s anything like the set-upon my '91, whenever I disconnect
the battery after un-alarming the car but before starting the
engine, I have to set the alarm immediately after re-connecting
it and un-alarm it straight away to shut it up.
I think this is something to do with the internal battery in the
alarm being low on power and the alarm relying on the car’s
battery but when you disconnect it, it throws a wobbly until you
have run the engine for a while to re-charge it’s internal
battery.–
Bryan N ('91 Sovereign)
Cambridge, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
I found the alarm system back up battery today when I was fixing the
drivers side (UK) blower. It is completely dead - zero volts - and needs
replacing.
Am I right in assuming that replacing this will enable me to disconnect
the main battery without having to re-program the alarm each time?
(This time it took about 15 presses on the remote before the car
realised that I was trying to train it to stop the one second blips &
flashes)
Help!!!
When pulling everything to get to the blower the single cable (might be
an optic fibre??) that comes out of the top of the alarm unit came out
of somewhere in the region of the steering wheel cover - do you know
what it is and, more importantly, where it should go??
It doesn’t go to the little red light - that’s got a couple of ordinary
wires - and still works.
I’ve had the covers off the steering wheel but can’t see a ‘home’ for
the cable in that region.
I found the alarm system back up battery today when I was fixing the
drivers side (UK) blower. It is completely dead - zero volts - and needs
replacing.
Am I right in assuming that replacing this will enable me to disconnect
the main battery without having to re-program the alarm each time?
Yep, thats correct, is the battery 0.5 Ah ?
I could’nt source on in the UK, but you may be able to tape a 1Ah battery in
place, lasts twice as long. I bought a charger for mine, as the main battery
is out of the car over the winter, so I also remove the back up, discharge
it and recharge it, keeps it healthy
ATB
When pulling everything to get to the blower the single cable (might be
an optic fibre??) that comes out of the top of the alarm unit came out
of somewhere in the region of the steering wheel cover - do you know
what it is and, more importantly, where it should go??
This “cable” might just be the antenna wire, in which case it goes to
nothing, just hangs there.
Dave Lokensgard
'90 Vanden Plas Majestic (DAVZCAT)
'55 XK140 OTS
Poway, California
In reply to a message from A.R.Mills sent Fri 30 Aug 2002:
Could well be the antenna, just checked mine, comes out of the
black alarm ECU, its brownish in colour. Mine however has a
connector on it, connects to a black wire, then dissappears into
a wire harness. While poking around, found two disconnected
yellow wires with spade type connectors. Just had a look at a
circuit drawing and discover that these are the passive alarm
setting wires, so I’ll leave them disconnected.–
The original message included these comments:
When pulling everything to get to the blower the single cable (might be
an optic fibre??) that comes out of the top of the alarm unit came out
of somewhere in the region of the steering wheel cover - do you know
–
Nigel, 1993 XJS 4.0L Conv
Manchester, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
When pulling everything to get to the blower the single cable (might be
an optic fibre??) that comes out of the top of the alarm unit came out
of somewhere in the region of the steering wheel cover - do you know
what it is and, more importantly, where it should go??
This “cable” might just be the antenna wire, in which case it goes to
nothing, just hangs there.
Dave Lokensgard
'90 Vanden Plas Majestic (DAVZCAT)
'55 XK140 OTS
Poway, California
It was a 0.5Ah.
I’ve got a 6V 1.3Ah as a replacement (�5.99 inc. Vat Maplins) and have
put it on charge before I put it in. It’s about twice the length of the
original but I’m sure I can find room for it
Do you know if the batteries trickle charge from the car itself?
I just bought myself a 91 XJ40 and wonder if it’s equipped with a security
system. There is a small opaque sensor just in front of the roof mounted
rear vision mirror and a red LED sticking up above the top of the dash
against the passengers front door pillar. Car also came with a working
remote that lights up when either button is pushed but has no effect on the
car.
I’ve checked the centre glove box for the disarm switch but there is nothing
there just a blank panel.
Anyone got any ideas?
Cheers,
Roger B
Rotorua, New Zealand.
91 XJ40 94k’s
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In reply to a message from Roger Barker sent Tue 8 Apr 2003:
The opaque globe behind the rearview mirror is the reciever for the electic door locks.
My 90 Sov has the factory alarm and has a disarm switch inside the center consol glove box. There is a red
LED on top of the directional signal lever housing, behind the steering wheel. This LED flashes all the time. I
disarmed the alarm as it has a panic mode,when if you hold the button down for more than 5 seconds the
horn sounds and the headlights flash—this happened when my wife had the car–alarm stops when key is
inserted in ignition.----she didn’t know this.
My 92 Sov does not have an alarm but has an LED just above the radio station display .The word security
appears under it. This LED flashes at all times.
Hope this helps.--
jake 85 xj6 87 sov 90 sov 92 sov
toronto ontario, Canada
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Got car to recently start again but now alarm
system/remote not working.
I searched on here but can’t find where back up battery
for alarm is.
Car sat for over a year not started or moved. It used to
have a red light blinking in the middle of dash now, no
light comes on. Btw it worked before.
Could it also be a relay issue?
Doors lock and unlock, but sometimes wll not unlock. dont
know if related. used to work fine before. Dome lights
work fine.–
94 XJ40 (xj6)
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In reply to a message from newcat2007 sent Tue 23 Jul 2013:
The security module is tucked up behind a panel just forward
of the fuel filler area inside the trunk (boot) I haven’t
had it out yet, but I think the backup battery is inside the
module. There is an antenna in the rear window glass just
above the fuel filler.–
The original message included these comments:
Got car to recently start again but now alarm
system/remote not working.
I searched on here but can’t find where back up battery
for alarm is.
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !
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In reply to a message from newcat2007 sent Wed 24 Jul 2013:
Had the same problem. This may help;
There are 2 ECUs in the area of the fuel filler, the obvious one is
the ABS ECU. The security ECU is hidden forward and outboard of the
fuel Filler. It is hidden behind a foam/cardboard panel.
The only way I got my security system to work was to replace the
security ECU.
As far as I know nobody has ever seen the back-up battery on a '94
XJ40.
Regards, Ed–
The original message included these comments:
I took out the ecu from the left side of the trunk, but there
is no battery within the module.
it has just a printed circuit board with three wire harness
attached to the module.
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In reply to a message from highhopes sent Thu 25 Jul 2013:
Thanks for reply.
I actually don’t care about the alarm it self. Just want
central lock to work from remote. Does that need the ecu?–
The original message included these comments:
The only way I got my security system to work was to replace the
security ECU.
As far as I know nobody has ever seen the back-up battery on a '94
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Hello can anyone tell me where to start? My 1994 XJ-12 {305}
security system does nothing. My key fob with new battery does not
lock or unlock…no beeps…no nothing. The rf fob is 318 mgh. The
ecm fuse is ok. Is there a place to start? Thanks Robert–
series 3 e-type 94 XJ-81 96XJ-81
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In reply to a message from motorcarman sent Sun 11 Aug 2013:
Hello again my post got lost? I think?..I read the tsb’s… the
trouble tree reads ‘‘recode the vehicles SCM to transmitter’’ how is
this done? thanks Robert–
series 3 e-type 94 XJ-81 96XJ-81
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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Turn security system switch (located in center console) “ON”
Turn ignition key to position 1
Turn security system switch “OFF”
Turn ignition “OFF”
Cycle security system switch ON/OFF 5 times within 5 seconds; a tone will sound & overhead console lights will come on; a beep will continue every couple of seconds while in programming mode
Press the first transmitter’s
button & a confirmation tone will sound (note the overhead lights will also flash); press the next transmitter’s button; repeat for up to 5 transmitters; there must be a total of five button presses so if less than 5 transmitters are being programmed the button on any one of the transmitters being programmed must be pressed multiple times
Turn security system switch “ON”
Open & close driver’s door
Transmitters are now programmed
Mike Stone
1994 XJ6/XJ40
163,XXX miles
Springfield, Missouri USASent via Palm Centro� “Yesterday’s Technology Today”
-----Original Message-----
the
trouble tree reads ‘‘recode the
vehicles SCM to transmitter’’ how is
this done? thanks Robert
series 3 e-type 94 XJ-81 96XJ-81
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