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Discussion Starter #1
My 166 came with an aftermarket alarm - I don't know why as I thought that an alarm was a standard kit on a 166? This has since been disabled (as I think there was a fault) and I may get rid of it altogether.

So, how do I know if the OEM alarm is still working or is there at all?
 

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Open one of the windows then close all the doors and lock it. Wait a few minutes then wave your hand in inside the car. The alarm should sound.
 

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Discussion Starter #4
OK did as Paul suggested - left the car locked with window down and waved hand inside - but nothing happened.

So was the alarm standard on the 166? It's an early 2001 model.
 

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Yes, so maybe the factory alarm has a fault, so that's why the after market one was fitted?
 

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When you lock the car does the red led light on top of the dash flash?


Functional description
The alarm system is controlled by alarm control unit M30 integral with the siren.

The control unit is supplied directly by the battery at pin 3 of connector A from the line protected by fuse F17 and at pin 7 of connector B (supply for the direction indicators) from the line protected by fuse F8 ; both fuses are located in the junction unit B1 .

An ignition-operated power supply (INT/A) reaches pin 12 of connector B of control unit M30 . through a line protected by fuse F5 of control unit B1 .

Pin 9 of connector A is earthed.

Control unit M30 controls door closure via switches N50, N55, N51, N56, which send an earth signal to pins 8, 15, 9 and 16 of connector B respectively when the door is open (the same switches turn on the door open indication leds ( See E2510 COURTESY LIGHTS ).

The bonnet lid is controlled by switch I10 , which is connected to pin 18 of connector B, while the boot lid is controlled by switch I11 , which is connected to pin 17 of connector B (the same switch turns on the boot light: See E2520 GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT - SUN VISOR LIGHT ).

Volumetric sensor unit K62 receives supply and earth signals from pins 8 and 11 of connector A of M30 , and sends on the alarm control signal to pin 12 of connector A of M30 .

Pin 1 of connector A of M30 sends alarm led control signal E40 .

Pins 1 and 2 of connector B of M30 produce control signals for turn signals ( See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS ).

Remote control receiver M35 is supplied directly from the battery at pin 3.

An ignition-operated power supply (INT/A) reaches pin 7 of M35 via a line protected by fuse F5 of control unit B1 .

Pin 4 is earthed.

M35 (pins 5 and 6) issue door lock and door release signals ( See E3040 CENTRAL LOCKING ).

Pin 10 of M35 controls the opening of the boot, receiving the signal from the specific button located on the ignition key.

Control unit M30 and receiver M35 are both equipped with a self-diagnostic system that may be used by connecting to connector R10 , pin 11. This receives signals from pin 6 of connector A of M30 and from pin 2 of remote control receiver M35 .

This serial line also acts as a connection between M30 and M35 .
 

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Discussion Starter #7
Yes, so maybe the factory alarm has a fault, so that's why the after market one was fitted?
I guess so....maybe OEM alarm had fault and cost of repair was more than aftermarket solution.

That 'functional description' you posted is well and good...but where is the supporting diagram?
 

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Discussion Starter #9
When you lock the car does the red led light on top of the dash flash?
I presume this is the light beside the aircon vent on the dash?

It also seems like the puddle/courtesy lights on the doors don't work or the boot light - even though I could swear some of them did when I bought the car. But, reading the functional description of the system, it appears that this issue could be linked to the alarm?
 

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Must be a common fault on 166 alarms. My 166 also had an aftermarket one fitted, but at least it worked.
My donor car is a 2001. I'd say the alarm on that is factory fitted, and not been messed with. It was working when I first got the car, but the battery is long since flat so its not working now.
You're welcome to pull the bits of the alarm out, if you want to try and get your own working again..:thumbs:
 

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Discussion Starter #11
Nah, I got the aftermarket one wired up again today, but cheers for the offer. Got the Parrot phone kit and CD changer working as well. Getting there :thumbs:.
 
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