The battery on my 997.1 died and I wasn't able to open the frunk by jumping the terminal in the fusebox because my key remote has become defective, so I removed the wheel liners to access the emergency release cable but the cable wasn't there, it's completely gone. I've checked to see if it was relocated to the tow hook opening, behind the turn signals or behind the marker lamps but it isn't there. it seems that it was either removed by a previous owner, or relocated to some mystery location. What else can I do?

Please note: jumping the terminal in the fusebox does not work because my key remote is defective so that is not an option, it's not a case of me not hooking it up to the wrong battery, its a problem with the key remote not working properly.

 

How did you try to jump open the frunk. If using battery it should work. A charger or jump pack wont work.

 

The reroute puts the cable behind the right side fender light, which pries out easily.

Lacking that, a small battery attached at the fuse panel per the Owner's Manual works as long as you supply a good ground (brake pedal) and use the key fob.

 

Won't the battery slowly charge via this connection also? So maybe, with a bad key fob, you can keep it hooked up for a few hours and then maybe it will just work no?

Peace
Bruce in Philly (now Atlanta)

 

When you pull the red tab out it disconnects the battery so a dead battery won't pull down the battery you're using. This also avoids arcing and sparking and blown fuses.

OTOH, the cigarette lighter will allow charging. But ... A tender needs to see a battery (7 VDC or so) before it will begin to operate. So a fully dead battery may not start the tender.

A trickle charger will work regardless of seeing a battery but doesn't adequately control currents so we're back to potentially blowing fuses.

 

How should I try to charge it, through the terminal used to open the frunk or another way?

 

How should I try to charge it, through the terminal used to open the frunk or another way?

 

If all you want to do is charge the battery I would start with a tender attached to either cigarette lighter. That's assuming you have the socket plug to do this. If you don't, then look to see if you have a tender connector attached to the battery and accessible from under you windshield.

Charging with a tender may or may not work, depending upon how far your battery has discharged. If it works, great. Lane it on overnight and you're set. If it doesn't work then you'll need to get the frunk opened. Go to the fuse box, pull out the red tab, and proceed per the Owner's Manual (lots of write ups on this).

Later, search on alternate frunk release cable for suggestions on making your life easier. This is an easy mod that is cheap too.

BTW, I've read that some people have been able to release the frunk with a transistor radio battery. I don't know if this is true or not. I've never tried it. But since pulling the red tab out disconnects everything but the front computer (used to power the frunk release solenoid) you really don't need a lot of power. A motorcycle battery or any convenient car battery will do as well.

 

If you are trying the fuse block jump method, please take note of Wayne's note. You have touse the key fob to pop the frunk.
Using the frunk release lever will not work. Ask me how I know?

Good luck,
Bill

 

OP,

This is germane to the 997.2, but I suspect it is the same for the .1 Post 34 for the inner workings https://rennlist.com/forums/997-foru...isaster-3.html

The pull out does not have a switch. All it does is move "jumpered" power from the pin to a relay that does two things: 1. Isolates the "normal" relay that sends power to a lot of modules, and 2. just sends power to the front control module which can open the frunk when it receives the remote signal.

No battery charging via the pin out. If the remote is not normally able to trigger the frunk lock release, then it is doubtful it will work for the backup procedure.

 

I've done several of these cables for friends, both generations.

 

Wayne,

I assume you are referring to your manual cable design that pops out the right side of the car. OBTW, thanks again for that, I added that to my car.

I am referring to the pull out in the fuse box.

 

Frustrating position to be in, for sure. Given a 'defective' key FOB, now is an opportune time to replace it. Lots of replacement FOBs out there, and you simply switch over the key blade and the little immobilizer chip "pellet." There's a DIY on here somewhere. This situation would be solved quickly with a working FOB.

Good luck, OP.

 

Thanks I'll try to find this

 

Yes, I was.

Meanwhile, apologies to the OP. I must have been tired. I missed your key fob not working. Remote charging your battery may be the best bet, via either cigarette lighter socket.

And yes, get a new key blank with guts.