Swooping Alarm control unit on a coupe

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MGZRreplica
Club Member
Posts: 172
Joined: Sun Jan 14, 2018 8:24 pm
Location: Walsall

Swooping Alarm control unit on a coupe

#1 Post by MGZRreplica » Thu May 14, 2020 12:43 pm

Has anybody swooped the alarm module.
It’s on a 96 coupe with a fob,
It’s without internal sensor.

Recently I could open the boot and the
alarm would go off.
Now it doesn’t.
It still immobilises.

Any ideas?
Where is it?
And if you swop it don’t you have to
Sync the fobs again?
Thanks for your time.
Grey 220 coupe
BRG 216 SLi
Silver 1.8vvc coupe-Sold
BRG 1.8 diesel-Sold
Silver 25GTi-Sold
BRG 200vi-Sold
Silver 200vi-Sold
K-reg White 216GSi-Sold- Started the ❤️
A-Reg Blue 1litre Metro - Scrapped💔

Cromp85
Posts: 363
Joined: Fri Oct 02, 2015 11:24 am
Location: Dudley, West Midlands

Re: Swooping Alarm control unit on a coupe

#2 Post by Cromp85 » Thu May 14, 2020 2:09 pm

If you your only problem is the boot, it could be a break in the boot lid loom or corrosion on the contacts within the latch.
If you car has the R3 dash it will use the 5AS imobiliser.
This will be located behind the dash on the far right side of the bulkhead, a few inches below the windscreen.

If you do replace the immobiliser it will need coding to the ECU :sad
My Rovers to date:
1994 Rover 220GSI in Tahiti blue (On the road)
2002 MG ZR 105 in Solar red (On loan)
1995 214i (On SORN)

MGZRreplica
Club Member
Posts: 172
Joined: Sun Jan 14, 2018 8:24 pm
Location: Walsall

Re: Swooping Alarm control unit on a coupe

#3 Post by MGZRreplica » Thu May 14, 2020 4:40 pm

The boot lid courtesy light comes
on when the boot is open.
So is the alarm separate to the
immobiliser?
Grey 220 coupe
BRG 216 SLi
Silver 1.8vvc coupe-Sold
BRG 1.8 diesel-Sold
Silver 25GTi-Sold
BRG 200vi-Sold
Silver 200vi-Sold
K-reg White 216GSi-Sold- Started the ❤️
A-Reg Blue 1litre Metro - Scrapped💔

Cromp85
Posts: 363
Joined: Fri Oct 02, 2015 11:24 am
Location: Dudley, West Midlands

Re: Swooping Alarm control unit on a coupe

#4 Post by Cromp85 » Thu May 14, 2020 7:04 pm

MGZRreplica wrote:
Thu May 14, 2020 4:40 pm
The boot lid courtesy light comes
on when the boot is open.
So is the alarm separate to the
immobiliser?
Sounds like the boot circuit is ok then.
The Alarm and Immobiliser function is all controled by the 5AS unit. On the the early 5AS cars, the car horn sounded when the alarm goes off. If your horn or its fuse fails you will have no sound.
On later 200s there is a separate sounder horn under the scuttle.
My Rovers to date:
1994 Rover 220GSI in Tahiti blue (On the road)
2002 MG ZR 105 in Solar red (On loan)
1995 214i (On SORN)

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