Good evening everybody,
in two weeks I'll be exporting my beloved 940SW to Finland (from Florida!!!) and even if car theft has never been a problem in that country, just to be on the safe side I am installing an alarm.

The alarm has an internal relay that can interrupt one electrical circuit, now... WHICH WILL BE THE BEST CIRCUIT TO INTERRUPT (1 wire) FOR NOT STARTING THE CAR??? (open __/ __) (close __-__)

I was thinking of:
- the starter inhibitor switch
- the in-tank fuel pump
- the main fuel pump
- the dreaded suppressor relay

The car is a 1991 940SE SW with auto tranny and the 2.3 turbo.

I'll appreciate your input as always.

David.
--
79 244 ; 91 240DL ; 91 POLAR ; 91 940SE Wagon

I would use either the power lead to the Radio Suppression Relay (It has nothing to do with the radio except noise suppression, and supplies power to the fuel injectors), or the lead to the main fuel pump.
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john

I'd have to think that starter inhibitor should be the only one you'd want to consider. In the event that your alarm unit failed, or was intermittent, at least then you could simply jump start at the starter solenoid to get around it. Any of your other approaches would mean that your alarm unit might impact during driving.
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David Armstrong - '86 240(350k km?), '93 940T(270k km), '89 240(parts source for others) near Toronto