NEED replacement key fob/advice how to replace

[BackNBlack]

Since the “SEARCH” function here stinks...

any help or advice to replace would be appreciated. I see TONs that look like the originals on eBay, but don’t want to buy something that won’t work. Also, must I go to Ford dealer to program?

Thanks in advance!

[Invective]

I bought one off of eBay that was included with a Mercury key blank. Ended up buying a key fob from the local dealer for $55 and having both new key fob and eBay key blank programmed to my car for another $50. Local Ace hardware cut the key to match.

[Spectragod]

I bought a couple generic ones off amazon, programming is easy, starting with the key off, turn it on/off 8 times, ending in the run position, the locks will lock/unlock, press the lock button on your new fob, locks will lock, turn the key off and your done.


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[BackNBlack]

Thanks guys for the replies. I’ll give it a try and see how I do.

[Fastbob]

I beleive they are still available at your local Ford dealer. The E-bay FOBS seem to be somewhat hit or miss.

[Black5Projects]

BackNBlack,

Not sure that this is your problem as I'm thinking you're after a complete FOB that would need programming, but I'll throw this out there: A few months ago, the key-ring attachment point broke. A few weeks later I found a replacement black-colored fob clam-shell at the counter of Advanced Auto that looked almost identical except for hollowed out pictograms. (See image) It was easy to switch out the internals from one FOB to the new one. Now I use that as my primary FOB and keep my 1 remaining original for safe keeping. For what it's worth, if memory serves, I believe they also offered complete FOBs ready for programming. The whole solution was very affordable. I think it cost me less than $10.

Black5Projects
2003 Mercury Marauder, black, 95XXX miles
2012 Ford F150 Roush Raptor
50727

[BackNBlack]

BackNBlack,

Not sure that this is your problem as I'm thinking you're after a complete FOB that would need programming, but I'll throw this out there: A few months ago, the key-ring attachment point broke. A few weeks later I found a replacement black-colored fob clam-shell at the counter of Advanced Auto that looked almost identical except for hollowed out pictograms. (See image) It was easy to switch out the internals from one FOB to the new one. Now I use that as my primary FOB and keep my 1 remaining original for safe keeping. For what it's worth, if memory serves, I believe they also offered complete FOBs ready for programming. The whole solution was very affordable. I think it cost me less than $10.

Black5Projects
2003 Mercury Marauder, black, 95XXX miles
2012 Ford F150 Roush Raptor
50727


I beleive they are still available at your local Ford dealer. The E-bay FOBS seem to be somewhat hit or miss.

Thanks...that actually IS/WAS the issue. I ordered a couple off ebay...we'll see if I "hit" or "miss'

Thanks for the answers.

[Spectragod]

https://www.amazon.com/Keyless-Lincoln-Mercury-Mustang-Explorer/dp/B06XS2NZKP/ref=mp_s_a_1_5?keywords=key+fo b+mercury+marauder+2004&qid=1582508562&replacementKeywords=key+fob&sr=8-5&vehicle=2004-56-723------------&vehicleName=2004+Mercury+Marau der

$15 on Amazon


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[88LTDCV351]

I bought my extra Mercury key blank many years ago on ebay. Had finally got around to trying to get it cut and IPATs programmed a few months ago. Osh (before they went out of business) wouldn't cut it because it didn't fit in their machine and I didn't want to buy one of their generic programmable keys. Ended up just going to a stealership during a regular mainenance visit, and they cut and programmed it on the cheap. Works good.

[88LTDCV351]

I bought a couple generic ones off amazon, programming is easy, starting with the key off, turn it on/off 8 times, ending in the run position, the locks will lock/unlock, press the lock button on your new fob, locks will lock, turn the key off and your done.


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I did get a generic fob. I'll try this method to see if it works.

[BackNBlack]

I received my FOB(s) from an eBay purchase. I have tried EVERYTHING to program them with NO SUCCESS. I can get the locks to “Cycle” with 4 quick Off to RUN CLICKS OF THE KEY ENDING ON RUN. I PUSH ONE OF THE BUTTONS ON THE FOB(s) *i got 4 of them...but NO LUCK GETTING THEM TO PROGRAM!

i opened one with a coin to check for battery...in there, no problem, but this is getting infuriating!

any thoughts other than “you’re DOING it WRONG”! TWSS

[Spectragod]

The only thing that comes to mind is that 4 remotes are programmed into the system and need removed first. I know I can remove them with IDS, I don’t believe you can program over them if they are already in the DDM.



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[BackNBlack]

Thanks for the reply. I understand the “4 remote limit”. The ONLY key fobs the car has are the two originals. I only have my hands on one of the original 2 (spare key, Valet key & extra FOB packed in a box “somewhere”).

I purchased 2 sets of 2 FOBS =4 from what seemed like a reputable eBay seller who has sold 500+ FOBs before, with 100% rating...total price $16.XX shipped. The car “cycles” on the 4th key from OFF to ON...leaving in ON, I push one of the button on one of the NEW FOBs...and NOTHING!

Needless to say, after a couple dozen tries, getting REAL frustrating. Probably just need to ask someone else, who’s not pissed off about it, do it at this point...as I DON’T seem to “have the touch”

oh...and ORIGINAL FOB from 2002 STILL WORKS, so it didn’t “de-program”...

*steaming MAD*

[Spectragod]

Thanks for the reply. I understand the “4 remote limit”. The ONLY key fobs the car has are the two originals. I only have my hands on one of the original 2 (spare key, Valet key & extra FOB packed in a box “somewhere”).

I purchased 2 sets of 2 FOBS =4 from what seemed like a reputable eBay seller who has sold 500+ FOBs before, with 100% rating...total price $16.XX shipped. The car “cycles” on the 4th key from OFF to ON...leaving in ON, I push one of the button on one of the NEW FOBs...and NOTHING!

Needless to say, after a couple dozen tries, getting REAL frustrating. Probably just need to ask someone else, who’s not pissed off about it, do it at this point...as I DON’T seem to “have the touch”

oh...and ORIGINAL FOB from 2002 STILL WORKS, so it didn’t “de-program”...

*steaming MAD*

Do you have Forscan software?


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[BackNBlack]

Do you have Forscan software?


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nope...I’m circumcised...

*EL OH EL...i have no idea what that is...so no...don’t have it

[Spectragod]

I’m leaning towards there are other remotes programmed, whether you have them or not. Or it is possible the seller sent you later model remotes, when I look at the ddm with Forscan or IDS, I can tell how many remotes are programmed, I know of no was to see what else is programmed in or how to remove other remotes without that tool.

I had a Harley super duty I bought new in ‘04, the truck came with 2 keys and remotes, I always buy extras so I always have 2 even if I lose one. I bought the keys and remotes online and was going to have our locksmith service program it all when he was at the shop next time. Turns out he couldn’t, I took the truck to another dealer, they told me I had 4 remotes and 7 keys programmed already. The selling dealer did this for some reason, probably the same reason they are out of business today......stealing customer cars.

Anyhow, what I’m saying is “ anything is possible “, contact the seller on eBay, tell him they won’t program up. Maybe these is a different procedure for your model year. Like doors all closed or the parking brake on etc.


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[BackNBlack]

Thanks..and I’m gonna reach out to the seller.

[Fastbob]

Did you test the battery in the remote to see if it was actually good? Anything less than 3 volts can be a problem.

[BackNBlack]

Did you test the battery in the remote to see if it was actually good? Anything less than 3 volts can be a problem.

im afraid i don’t know how to “test the battery” in the new FOBs. I DID look inside 2 of the 4 FOBs to make sure a battery was present.

my eBay message to seller resulted in him just sending me a link to the proceedure to program. Which was the exact steps I tried a dozen+ times yesterday. I’ve put the car away. I’ll pull it out and try to program again on a “fresh day” sometime this week. If the results are still a failure, I’m gonna demand return/ refund.

[mustangeddie]

I know I'm a bit late to the party but I ran into the same problem as you.Bought 4 different remotes from several vendors & could get none of them to program.My buddy came by with his forscan tool & it only had 2 remotes programmed which I never got when I purchased the car.He removed them from vehicle history & still could not get any of them to work. Received a genuine Ford remote today from CarandTruckRemotes.com part #FRD-3W7Z-15K601-AA & it programmed on the first attempt.I guess those cheap chinese ones are not compatible.

[Invective]

I guess those cheap chinese ones are not compatible.

Sounds familiar. My previous Marauder only came with one key, remote fob and valet key. Ordered a Mercury key blank and remote (package deal $20) off of eBay. Key cut and programmed correctly, remote was useless. $55 for a new remote and another $55 through the dealer to program everything and cut the key.

[BackNBlack]

I guess I'll chime in since I started this...

I ended up ordering NOS from my local Dealer 2 FOBs for $90. And I got a REFUND ($25) from the ebay seller...who said I could just "throw the ones they sent me away"...

You get what you pay for...

[mustangeddie]

I think I did a google search & came up with the place I bought from. Was only $17.94 shipped to my door which was a bargain in my eyes.

[fastblackmerc]

This is the key fob you need:

3W73-15K601-AA
FCC ID: CWTWB1U343
Can: 1788a-FWB1U343

Takes a CR2032 Battery

If the FCC / CAN IDs don't match, it won't work.

Programming key fobs from the 2004 Marauder Owners Manual:

Place the key in the ignition and
turn from 2 (LOCK) to 3 (OFF) and
cycle between 3 (OFF) and 4 (ON)
four times in rapid succession within
3 seconds.
After doors lock/unlock,
press any control on all transmitters
(up to four). When completed, turn
the ignition to 3 (OFF).

All transmitters must be
programmed at the same time.

When completed, turn the ignition to the 3 (OFF) position and wait at
least 20 seconds in order to use the recently programmed
transmitter(s).

All transmitters must be programmed during the same programming
cycle. A transmitter that is not programmed within the same
programming cycle will be erased and will no longer operate your
vehicle’s locks. If this occurs, you will have to reprogram all the
transmitters again, as you cannot just “add” a transmitter.

[Peace2Peep]

Hey Fastblackmerc,

I private messaged you a couple of times...it is a strange request, but I wanted to see what you thought?!!

Let a brother know!

Thanks!




This is the key fob you need:

3W73-15K601-AA
FCC ID: CWTWB1U343
Can: 1788a-FWB1U343

Takes a CR2032 Battery

If the FCC / CAN IDs don't match, it won't work.

Programming key fobs from the 2004 Marauder Owners Manual:

Place the key in the ignition and
turn from 2 (LOCK) to 3 (OFF) and
cycle between 3 (OFF) and 4 (ON)
four times in rapid succession within
3 seconds.
After doors lock/unlock,
press any control on all transmitters
(up to four). When completed, turn
the ignition to 3 (OFF).

All transmitters must be
programmed at the same time.

When completed, turn the ignition to the 3 (OFF) position and wait at
least 20 seconds in order to use the recently programmed
transmitter(s).

All transmitters must be programmed during the same programming
cycle. A transmitter that is not programmed within the same
programming cycle will be erased and will no longer operate your
vehicle’s locks. If this occurs, you will have to reprogram all the
transmitters again, as you cannot just “add” a transmitter.