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05-09-2008, 01:17 PM
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#1 (permalink) |
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Michigan Heavy Metal
Join Date: Apr 2004
Location: Delray Beach, FL -- Louisville, CO
Posts: 138
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key fobs out of juice -- near miss
Out and about yesterday I could not unlock Elise with the key fob. Panic started to gnaw at the edges of my brain. Will I need a tow truck? I knew the other fob was not working. Abandoned far from home!
I popped the top on the fob and extracted the battery, which I rubbed on my shirt to get a quick charge. Upon reassembly, the fob worked again to unlock the doors and worked again to start the engine. No stopping until baby is safe in the garage. At the garage, I tried the fob and no go. Purchased two 2032's and this morning installed the fresh batteries. Tried the simple fob resynchronization procedure but fearing I would need to reprogram the fobs. Both worked! Feeling fine. Why did this happen? I had not changed batteries since purchasing Elise from Ferrari of Denver nearly 3 years ago. The manual clearly states 3 years is the expected life of the battery in the key fob. I had pushed the envelope! 
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Storm Titanium, Touring Package (Biscuit), Star Shield 01-Jun-05 delivery mods -- removal of driver's sun shade, Multivex mirrors, CIPA 31000 rear view mirror + adaptor, battery tender 
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05-09-2008, 01:34 PM
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#3 (permalink) |
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It's a Lotus
Join Date: Oct 2005
Location: Beverly Hills, Ca.
Posts: 10,850
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2005 Saffron Yellow Elise, Sports Package, Touring Package, Hard Top, Stage II Exhaust "We know they're magical and worth every minute we spend on them. The whole Lotus owners' world is like a secret handshake among people who understand that." (R&T) |
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05-09-2008, 03:07 PM
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#7 (permalink) |
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German Import
Join Date: Oct 2006
Location: Portland, Oregon
Posts: 354
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I bought a new battery and put it in the little tool pouch in the trunk.
That way - should the battery in the key fob ever die - I can still open the trunk to get to the spare. Better to have the alarm screaming at you for a minute or two until you get the battery replaced than to be completely stranded in the middle of nowhere 
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If I die, my biggest fear is that my girl sells all my toys for the price I told her I bought them for... |
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05-09-2008, 03:14 PM
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#8 (permalink) |
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Forum Founder
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Is it just me... I kept reading the thread title wondering how one makes a keyfob out of juice?
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* V E R I T A S * A E Q U I T A S * We have been feeling the buzz since 2004 2006 Noble M400. 500 pounds of torque, 500+whp. Getrag tranny, Quaiffe LSD, Duratec dual turbo V6. Hoosier 315-18 tires. 2350 pounds. 0-60mph in 2.9 seconds. Hinged clams. This is the Elise turned up to ELEVEN. |
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05-09-2008, 03:15 PM
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#9 (permalink) |
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It's a Lotus
Join Date: Oct 2005
Location: Beverly Hills, Ca.
Posts: 10,850
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A car made out of a big orange.
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2005 Saffron Yellow Elise, Sports Package, Touring Package, Hard Top, Stage II Exhaust "We know they're magical and worth every minute we spend on them. The whole Lotus owners' world is like a secret handshake among people who understand that." (R&T) |
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05-09-2008, 03:17 PM
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#10 (permalink) | |
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It's a Lotus
Join Date: Oct 2005
Location: Beverly Hills, Ca.
Posts: 10,850
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Quote:
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2005 Saffron Yellow Elise, Sports Package, Touring Package, Hard Top, Stage II Exhaust "We know they're magical and worth every minute we spend on them. The whole Lotus owners' world is like a secret handshake among people who understand that." (R&T) Last edited by LARRY : 05-12-2008 at 02:03 PM. |
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05-09-2008, 03:26 PM
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#11 (permalink) |
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No Acceptable Substitutes
Join Date: Oct 2007
Location: NYC & SD
Posts: 1,588
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I'm pretty sure the key fob's remote code is hard wired... so replacing the fob's battery doesn't change anything, therefore does not require reprogramming. The part of the system that can be reprogrammed is the Cobra box in the car... it can be reprogrammed to accept the codes from different fobs.
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2007 AW Lotus Exige S. Opts: Track Pack, Touring Pack, LSD Mods: Multivex mirrors, JLAudio 525/Focal 130 spkrs, JLAudio Stealthbox, Alpine PDX-5 Amp, Switchable DRL, Sector111 F&R Tow Hook, HID Kit, Bootie and Carpet Bling, Lotus Trim Shop leather/alcantara interior, Black Sill Protectors, Braille Battery, LED Parking/Dome/License Lights, Bane's stealth bulbs, alexandertg4's 1/4 turn kit, Stan's shifter mod, jim-c's spkr rings, codymac's 1/4 turn kit, Lotus Cup roof |
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05-09-2008, 06:43 PM
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#13 (permalink) |
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Michigan Heavy Metal
Join Date: Apr 2004
Location: Delray Beach, FL -- Louisville, CO
Posts: 138
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I did not need to program the key fobs.
I did need to perform transmitter re-synchonization, as described on pp. 35-36 of the 2005 Owner's Handbook, where it also says the normal operating life of the batteries is 3 years. Juice is a many splendored thing; for sparkies, juice is electric current. For others juice may well be an additive needed for screwdrivers. Randy is right; I might better have said "key fob battery drained".
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Storm Titanium, Touring Package (Biscuit), Star Shield 01-Jun-05 delivery mods -- removal of driver's sun shade, Multivex mirrors, CIPA 31000 rear view mirror + adaptor, battery tender
Last edited by ojars : 05-09-2008 at 07:14 PM. |
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05-12-2008, 02:53 PM
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#15 (permalink) |
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Michigan Heavy Metal
Join Date: Apr 2004
Location: Delray Beach, FL -- Louisville, CO
Posts: 138
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Re-syncing is not the same as re-programming.
Some one more knowledgeable may have a better answer, but I offer this -- When you press the appropriate button on the key fob an RF signal is transmitted, which the alarm unit will sense if in range of the signal. The content of the signal or the signal frequency must be recognizable to the alarm unit before its computations are triggered. Re-synchronization of the transmitters is a protocol that allows that to happen. When you must use the PIN and re-program the fobs and the alarm unit, the process gives all pieces the appropriate content for transmission. These are my speculations; do not mistake these ruminations for expertise!
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Storm Titanium, Touring Package (Biscuit), Star Shield 01-Jun-05 delivery mods -- removal of driver's sun shade, Multivex mirrors, CIPA 31000 rear view mirror + adaptor, battery tender
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05-12-2008, 04:01 PM
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#16 (permalink) | |
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Ex-Brit
Join Date: Jul 2005
Location: Boca Raton FL
Posts: 1,404
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Re-sync is used when the existing remotes lose communication with the alarm module.
Programming is the method used to introduce new remotes into the system. Quote:
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05-16-2008, 08:42 AM
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#17 (permalink) |
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Registered User
Join Date: Nov 2005
Posts: 115
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Replaced batteries in both fobs today. Functioning nominally without resynch or reprogramming. FWIW
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2005 Ardent Red Elise with ECU2 flash, K&N Filter, Borla exhaust, Multivex mirrors, Tesprit Autozone rear view mirror, Genesis Profile 4 Ultra, Dynaudio 222 speakers and JL Stealth Sub, Voltphreaks VPHR07 battery Last edited by julius_the_cat : 05-17-2008 at 05:00 AM. Reason: "without" not "with" - sorry |
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05-16-2008, 12:19 PM
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#19 (permalink) | |
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Registered User
Join Date: Nov 2007
Posts: 202
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Your dreaming!
Quote:
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05-17-2008, 05:49 AM
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#20 (permalink) |
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Michigan Heavy Metal
Join Date: Apr 2004
Location: Delray Beach, FL -- Louisville, CO
Posts: 138
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Then -- It was a miracle!
I just reported what I did in the order I did it and offered a theory -- an accumulation of static charge, i.e., tribocharging. Maybe there is another physical explanation.
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Storm Titanium, Touring Package (Biscuit), Star Shield 01-Jun-05 delivery mods -- removal of driver's sun shade, Multivex mirrors, CIPA 31000 rear view mirror + adaptor, battery tender
Last edited by ojars : 05-17-2008 at 06:36 AM. |
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... with carpool lane stickers!!! 
Linear Mode
