One FOB for 2 Marks?

[dnsherrill]

i searched a bit, but didn't find this answer: I have one fob, 2 Mark VIII's..the fob works for one of my cars. Can I somehow make the fob control both cars?

 

[chris2523]

yes. then when you want to get into one car and leave, you unlock the other car and leave it unlocked.

 

[racecougar]

yes. then when you want to get into one car and leave, you unlock the other car and leave it unlocked.

That would be an issue if you're parking in a driveway or on the street at your residence, but the OP may have a garage. I know I don't lock my cars at home.

OP, did you just lose the fob to the other car or does it not have keyless entry at all?

 

[dnsherrill]

car # 2 did not have the FOB when I bought it....unlocking the other car would not be an issue...parked in garage

 

[keVIIIn]

I could see why you'd want one fob for two cars. Two fobs on one key ring would be a jumbled mess in your pocket..just 5 keys on one ring is a PITA for me, gets hooked on everything when I pull them out of my pocket.

 

[racecougar]

car # 2 did not have the FOB when I bought it....unlocking the other car would not be an issue...parked in garage

Well then the first thing to do would be to determine whether the car even has keyless entry.

 

[98lincmk7lsc]

Well then the first thing to do would be to determine whether the car even has keyless entry.

If it's a Mark VIII, it has keyless entry.

 

[racecougar]

Then I'd give this a try:

Gen 1: http://www.markviii.org/LOD2/remote93_96.htm

Gen 2: http://www.markviii.org/LOD2/remote97_98.htm

 

[keVIIIn]

after going through this whole keyless entry ordeal on mine today..I'm not so sure this would work. The key fob sends information wirelessly (obviously) to the keyless entry module in the trunk of the car (pic below)..these modules have an antenna type wire plugged into it similar to what plugs into the back of a radio which I assume is what picks up the signal from the key FOB. Each car has a unique module with a different keyless entry door code and each is programmed differently for ONE set of key FOBs. You would have to make one key FOB work on two completly different keyless entry modules..which I don't see how that would work.

 

[chris2523]

its very easy and will work.

you just put the car into learn mode and it records the specific ID of the transmitter. there is a grey connector behind the glove box you can stick a dime in to short. it responds by cycling the door locks. then you hit the lock button on the remote and the car cycles the locks again. boom. programmed to that car.

repeat on the next car.

and two different cars can hold that same ID, no problems there.


the modules aren't really programmed differently for the fobs. the fobs are just added to the module when its installed in the car.

 

[dnsherrill]

yea, it has keyless entry per the driver's door keypad...
I guess my real question was: between the car and the remote, which is fixed and which can be modified? when they are mated which changes? It sounds like the answer is the FOB is fixed and the car changes to listen to the FOB. Thus 2 cars for one fob, easy peasy?

 

[driller]

yea, it has keyless entry per the driver's door keypad...
I guess my real question was: between the car and the remote, which is fixed and which can be modified? when they are mated which changes? It sounds like the answer is the FOB is fixed and the car changes to listen to the FOB. Thus 2 cars for one fob, easy peasy?

The keyless entry module(KEM) is programmable for the key FOBs (remotes) and the 'secondary' keyless entry code. The KEM has a fixed keyless entry code as well. All key remotes are fixed but may have an "A/B" switch for two different settings.

You basically program the keyless entry module for the remote you want to use.

 

[chicken]

I could see why you'd want one fob for two cars. Two fobs on one key ring would be a jumbled mess in your pocket..just 5 keys on one ring is a PITA for me, gets hooked on everything when I pull them out of my pocket.

5 keys....bah