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Dave Helms (Davehelms)
Junior Member
Username: Davehelms

Post Number: 76
Registered: 5-2003
Posted on Tuesday, July 01, 2003 - 8:40 pm:   

Yup. And if you do, I would gladly pay shipping to get ahold of your old one. I have a Euro 360 in with the same problem, but his list of problems is so long I doubt I will ever get to the alarm problems before the repair budget is used up. I would like to come up with a clean fix for the problem, but I need an old one to work with. All the others I did before now were under warranty and Ferrari wanted them back
Ernesto (T88power)
Intermediate Member
Username: T88power

Post Number: 1576
Registered: 2-2001
Posted on Sunday, June 29, 2003 - 7:34 pm:   

Does this also apply to the 360? I seem to have the same symptoms. The shop manual says that the 360 alarm battery is within the alarm siren itself, inside the trunk. Do I have to order a new siren?

Ernesto
Dave Helms (Davehelms)
Junior Member
Username: Davehelms

Post Number: 65
Registered: 5-2003
Posted on Sunday, June 29, 2003 - 6:57 am:   

Usually the problem stems from a bad battery in the alarm siren as stated earlier. Ferraris newest retro fix was to put a seperate ground wire to the battery, and bypass the cut off switch. Seems when the battery switch is turned off, all the cars computers sap their power from the alarm battery until that drys up. Once gone, its gone. They also changed the battery in the new sirens to NMH style. I havnt had one fail since I left the dealer network, but when I do, that one will get cut apart and repaired and the ground wire update performed. If nothing else, my plan is for a remote gell cell ($14) wired into the origional siren and wire tied in place up by the ABS ECU.
Dave Burch (Merlyn)
Junior Member
Username: Merlyn

Post Number: 90
Registered: 8-2002
Posted on Saturday, June 28, 2003 - 9:44 pm:   

On reading the manual it appears that the motion sensor is powered by the same battery, it this is so the car could be towed away without setting off the alarm.

(side note)This is the most frustrating manual I have ever seen, and it cost me a grand!!!!
James J. McGee (Dr_ferrari)
Junior Member
Username: Dr_ferrari

Post Number: 115
Registered: 7-2002
Posted on Saturday, June 28, 2003 - 8:14 pm:   

Alarm horn is located under the right headlamp bucket above the battery.
can be accessed best by removing the panel under the battery, reaching up and removing the two 10 mm fixing bolts on either side of the alarm horn.

Best regards, Jim
Mr. Doody (Doody)
Intermediate Member
Username: Doody

Post Number: 1302
Registered: 11-2001
Posted on Saturday, June 28, 2003 - 7:57 pm:   

both of mine did weird things too. light on with chirp. light off with chirp. light off without chirp. who knows.

leaving it broken (or flaky) is apparently totally cool. it won't negatively impact anything at all.

the unit in question is about 3" by 3" by 4". it's beige (?) plastic. the bottom third of it is the battery and the top two thirds is the siren (if memory serves). it's all one piece. i didn't inspect in detail the one i had on my shop table for a while (the first dead one), but i don't think it was serviceable - i don't remember screws to open it up, but maybe. maybe you could just find the replacement battery part and let us all know - it's probably a $15 battery.

this doohickey is located in one of the front wheel wells, i believe.

doody.
Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 10
Registered: 5-2003
Posted on Saturday, June 28, 2003 - 5:45 pm:   

Here is where mine seems to be different. I can still hear the chirpping but the light just stays on. Strange.
Dave Burch (Merlyn)
Junior Member
Username: Merlyn

Post Number: 89
Registered: 8-2002
Posted on Saturday, June 28, 2003 - 5:40 pm:   

Mr Doody, Thanks, just took it for a short drive and the light stays on. Since it's not critical I'm going to shine it for awhile.
I wonder if I could replace the battery myself. Is the alarm ECU behind the drivers seat? That's where the manual says it is.
Mr. Doody (Doody)
Intermediate Member
Username: Doody

Post Number: 1300
Registered: 11-2001
Posted on Saturday, June 28, 2003 - 5:17 pm:   

when you disarm the alarm, the alarm siren should "chirp" twice, and your headlights (outside) and directional indicators (inside) should blink in unison with the "chirp"ing. if your alarm battery is gonzo, you should still see the headlights flash and directional indicators flash in lieu of the aural indicator. the alarm will still function, and if the alarm is tripped, your main horn will sound so the siren battery is not entirely critical. and for $400+ you might not give a rat's behind.

my understanding, which may be flawed, is that the battery does nothing except power the horn to which it is attached. presumably this is so if the thieves oh-so-craftily cut the main battery, the alarm siren can still go off. right. it'll go off for probably 10 seconds before the battery dies :-)

doody.
Dave Burch (Merlyn)
Junior Member
Username: Merlyn

Post Number: 88
Registered: 8-2002
Posted on Saturday, June 28, 2003 - 4:04 pm:   

Does the rechargable battery in the alarm ECU do anything other than the "Chirp" ?
Thanks to this thread I realized I haven't heard mine for awhile so I checked it today, no chirp, however when I left a door ajar and armed it I heard a faint chirping. My light goes out when the system is dissarmed. Mine is a 99, Thanks in advance, Dave
Mr. Doody (Doody)
Intermediate Member
Username: Doody

Post Number: 1299
Registered: 11-2001
Posted on Saturday, June 28, 2003 - 2:48 pm:   

if you don't hear any chirping at all when you lock/unlock the car with the remote then it's definitely gonzorama time.

it's about a $350 part. and you can expect to replace it every 3-4 years. my '99 maranello is on its third unit - although the latest part on the maranello purportedly has a power link to the main battery to prevent this idiocy (we'll see).

ain't italian engineering grand? :-)

doody.
stephen winter (355f)
New member
Username: 355f

Post Number: 4
Registered: 6-2003
Posted on Saturday, June 28, 2003 - 2:01 pm:   

hi

Its a very common problem on these models

The alarm and battery unit are as one and next to the washer bottle in the wheel arch. The batteries which are sealed inside last for about 3 years max.

Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 9
Registered: 5-2003
Posted on Saturday, June 28, 2003 - 1:56 pm:   

The car is a 99 with 8k but has been sitting for the better part of a year. The car starts and drives fine with the exception of the LED. As soon as the engine fires it lights up and stays on and I haven't noticed any additional chips or beeps. Doody, I was thinking the same thing. Did you replace the battery on yours? If so where is it located.

Greg
Mr. Doody (Doody)
Intermediate Member
Username: Doody

Post Number: 1296
Registered: 11-2001
Posted on Saturday, June 28, 2003 - 12:26 pm:   

the alarm LED definitely does go out.

if your alarm LED does not go out, you most likely have a failed battery in the alarm unit. it is a crappy rechargeable battery that eventually fails. after a while, the alarm will stop making noise (that separate chirp horn is powered by that battery).

doody.
Michael Klein (Malibumk)
Junior Member
Username: Malibumk

Post Number: 73
Registered: 5-2002
Posted on Saturday, June 28, 2003 - 12:04 pm:   

Greg:
The LED'd don't go out.
Mr. Doody (Doody)
Intermediate Member
Username: Doody

Post Number: 1295
Registered: 11-2001
Posted on Saturday, June 28, 2003 - 11:24 am:   

none of the key fobs should make a difference. the red one is used for reprogramming in case you need to change the keys/codes. you should generally keep that one in a safe place.

give us a bit more data.

is the car failing to start now? or are you hosed?

does the alarm make noise (beep, beep-beep) when you arm and unarm it?

does the LED blink when the alarm is engaged and stays on solid when the alarm is disengaged?

what year is your 355? has the alarm unit ever been replaced? was it / is it a high-mileage daily-driver or a garage-queen?

doody.
Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 8
Registered: 5-2003
Posted on Saturday, June 28, 2003 - 8:52 am:   

As a new owner I am still getting used to the starting process. Last night I got into the car and tried to start it without disengauging the alarm. I realized what I did but now the LED on the dash won't go off. Do I need to use the RED key fob? Thanks in advance.

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