Not sure where the alarm takes power from but if it can be disarmed via the keypad then I wouldn't have thought it's a supply problem. These alarm modules are getting tired now, mine sometimes doesn't enable the starter circuit and I have to hold the key in the crank position while banging in the general vicinity of the alarm module and it will start, I think the contact on the relay is carboned up but the Siemens relays are now obsolete and I cant find a drop in replacement.
|