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2002 jaguar x type 2.5 litre code p1638 with a gear box fault display . code p1638 indits a problem with the pats system . anti theft but the light goes out before 60 seconds after turning the key on indicating the anti theft is recognizing the key. the car won't turn over. check signal to pcm for crank signal and it is good. no signal out of pcm to starter my guess is the instrument cluster, cleaned all connections at pcm, instrument cluster, and gem. customer has no extra keys
turn key in ignition from position 1 to position 2 and back four times quickly you will hear beep remove key press any remote button you will hear second beep and thats it youve just reprogramed your keyfob this also works for ford key fobs but i think its five key turns from 1 to 2
Many cars of that period could be reset by some ignition key sequence.
Try switching from the off position to the on (not start) several times within 15-30 seconds.
It won't hurt anything and might turn off the light.
If the problem is still present that caused the light to go on the first time, it will likely come on again after you start the engine.
I hope the reason for that alarm light has been since corrected.
Some cars needed to have the battery disconnected for several minutes to cancel the memory contents.
Newer cars will not likely respnd to that since flash memory is now common which retains the error code even without power.
Homelink Garage Door Opener Programming Procedure:
The procedure described below was successfully applied to a 2005 Jaguar S-Type.
To begin with, several attempts were made using the programming instructions contained in my Jaguar’s owner’s manual.Though the procedure described in the owner’s manual was straight-forward and understandable, I was unsuccessful in getting the vehicle’s remote to make my garage door opener function.The particular garage door openers I have are both made by Genie.Both openers utilize the “Rolling Code” feature.
To begin with, be sure to clear previous codes on your Jaguar’s garage door opener by first turning (rotating) the ignition key to the “I” position (first notch).Next, simultaneously hold button 1 (left most button) and button 3 (right most button) down until the middle button’s red light changes from continuous on to a rapid flash.This process takes approximately 20-25 seconds.What follows is a two part process.In the first part, get your Genie portable remote and hold it near (approximately 3 inches away from) your Jaguar’s garage door opener console buttons.Choose which button on your Jaguar’s remote you wish to dedicate to your Genie door opener and simultaneously press and hold your Genie opener button and your Jaguar’s opener button.The red light on your Jaguar’s center button (button #2) will light up and within 1-2 seconds will begin to flash rapidly.You have just completed part 1 of the two part process.
Part two:Now it is time to utilize the “Learn” function on your Genie garage door opener.Press the “Learn” button on your Genie garage door opener.The red LED adjacent to the “Learn” button will begin to flash.You now have 30 seconds in which to program your Jaguar’s opener button.Using the same button you just used in the “part 1” procedure, press and hold the same button for several seconds.As before, your Jaguar’s red light in the middle button will light up and within 1-2 seconds, it will flash rapidly.Release the button you are programming.Now, here is the key piece of information!Once again, press and hold that same button.Once again, the center button’s red light will flash rapidly.Release your newly programmed button.This procedure proved successful in my application.Here is what has just happened.The first time you pressed your Jaguar’s remote button tells the Genie opener that it exists and that it is a viable candidate for making your life easier (opening the damn door).The second time you press your Jaguar’s remote button confirms to the Genie’s rolling code that your Jaguar’s signal is legitimate and is to be trusted from then on.