2002 lincoln ls remote start

Hey guys.....good evening! New to the site, but glad I found it.

I have a "honey-do" job coming up for my aunt; install a remote start in an 02' Lincoln LS. I have installed 4 remote starts previously for friends with no significant problems. Last install was on an 00' Mercury Grand Marquis.....everything went fine except for the 791 bypass loop. Had to "make" my own loop to go around the key cyclinder to allow it to fit back into the steering column cover properly.

So far, I have been supplied with the remote start (Shelby Auto Security CS-450R, made by JBS) and a JBS bypass module 791.

OK, a couple questions about this LS.

According to the wiring charts, I will need an extra relay (#775) to wire up the trunk release. Do I wire in on the release button or the rear electric module (REM)?

What is the function of the door trigger wire?

The parking lights look like a little extra work. Looks like an extra relay (#775) and an 1800 ohm resistor are needed. Does the resistor just solder in-line and does it need to be physically protected? I have looked online at Radio Shack and found an 1.8k resistor but it comes in a pack of 100 various resistors.

Lastly, what about the PATS key? The last install on the Grand Marquis, the owner had the 2 original keys and supplied me with a 3rd key. On the LS, the owner bought it used and only has one key. My friends at the local Ford parts counter implied they can sell me a miscut key for about $10 that will work with the LS. They have a coffee can of various miscuts for Ford, Lincoln, Mercury vehicles that they sell the local installers relatively cheap. Will the miscut key work provided I find the correct key for the LS? Or, does the key need to be cut to fit the cyclinder and actually programmed to start the car? If so, the car will have to go to the dealer since the owner doesn't have the 2 original keys.

Sorry for such a long post from a newbie. I'm just trying to get my ducks in a row before I tackle this so I don't kill my entire weekend. Thanks for any help guys.

inane2 wrote:

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According to the wiring charts, I will need an extra relay (#775) to wire up the trunk release. Do I wire in on the release button or the rear electric module (REM)?

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Using the wire at the switch would be fine. You should not need a relay for the trunk release in the 02 LS. It is a negative pulse. To test and see if you need a relay, find the correct wire using your DMM. Once you are absolutely sure that you have the correct wire, hook up an old fashioned bulb test light, clamp it to ground and then touch the probe to the wire in question. If the trunk opens you do not need a relay, if it does not open you need one.

inane2 wrote:

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What is the function of the door trigger wire?

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If you are just doing a remote start in an automatic transmission vehicle and not an alarm the only reason you would use the door trigger is for dome light supervision. This would turn on the interior light when you unlock your vehicle via the new remote. Some systems do not offer this so it may not apply.

inane2 wrote:

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The parking lights look like a little extra work. Looks like an extra relay (#775) and an 1800 ohm resistor are needed. Does the resistor just solder in-line and does it need to be physically protected? I have looked online at Radio Shack and found an 1.8k resistor but it comes in a pack of 100 various resistors.

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It's up to you but if you plan on doing any future installs you might be able to use the left over resistors in the future. If you do not want to buy the whole pack then just pick up a couple resistors to wire in series to achieve the 1800ohms you need. If you wire resistors in series (end to end) the total resistance is the value of each resistor added together. If you wire resistors in parallel (both ends tied together) it reduces the resistance.

inane2 wrote:

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Lastly, what about the PATS key?

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Here is where it gets a little tricky. In order to program a new key to the car yourself you need 2 keys that are already programmed to the car. You will have to send the car to the dealer to get at least one new key programmed. Then you can add one of those $10 keys without any major issues but since the car is already there I would just have them program 2 keys.

Keep in mind that you have to go into the driver's door on that car to access the door locks. Can be a bit of a PITA but not too bad on the LS.



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Installer, IT support, and FFL. I need less hobbies.

This might be worth the money and time saved:

https://www.autotoys.com/x/product.php?productid=9370

It's the XK510 module ... does transponder, doorlocks, etc....

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The search function is your friend.

peterrubers wrote:

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This might be worth the money and time saved:

https://www.autotoys.com/x/product.php?productid=9370

It's the XK510 module ... does transponder, doorlocks, etc....

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It would definitely help with the door locks but still consumes a key. link

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Installer, IT support, and FFL. I need less hobbies.

Twelvoltz' response is excellent. I have very little to add:

The door trigger wire is what "tells" an aftermarket alarm that a thief has broken in.......that's why it's not necessary if you're only doing a remote start.

There are some locksmiths who are equipped to program Ford keys. You could call around and see if their price is any better than the dealer's.

As far as securing your resistor, you could take a leftover piece from a medium-size plastic zip tie, hold that against your resistor (after you've done your wiring), and tape it on there........that'll make the resistor more rigid, and less likely to be broken.

The Lincoln LS isn't the hardest car to do, but it's far from the easiest. You might find this module, the XK01, to be worth buying, as it'll save you from running wires into the door.

https://www.bypasskit.com/wizard.aspx?vehiclemake=Lincoln&modelid=LS&yearid=2002

If you are curious what that module is all about, just read the install manual on the site, and you'll see what the benefit is.

Hey guys, thanks so much for the info. It clears alot up for me.

I guess I will have to make an 1800 ohm resistor with 2 or 3 smaller resistors. Thanks for the advice on protecting / securing it also.

It also sounds like the door trigger wire will not be used during my install.

I will do a little more research to better prepare for the install so I don't burn my weekend.

Thanks again guys so much for the help!!! I will keep you posted.

I have a bunch of resistors. If you have trouble finding them locally, I'm sure I could drop some in the mail for you.

Also, not only can you put several smaller resistors in series......you can put larger resistors in parallel.

For example, two 3600 ohm resistors in parallel would equal 1800 ohms.

Chris, hey man, thanks for the info on the resistors. I just checked Radio Shacks website and now I have another question.

To acheive the 1800 ohm resistor for the parking lights, could I wire in a 1k ohm, a 470 ohm and a 330 ohm end to end?

Also, do you just trim the leads and keep all 3 resistors fairly close to one another or does there need to be space in between the three?

Resistor page (about half way down the page)