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  #21  
Old 03-19-2014, 08:43 PM
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Good luck with it!!
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  #22  
Old 03-20-2014, 09:57 AM
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I haven't looked into it too much but can the factory alarm be bypassed at all? I mean, is the car in an area where you "need" the alarm or I wonder if it's possible just to skip it all together. That way your not stuck removing and re-installing the battery each time it happens.
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  #23  
Old 03-20-2014, 12:09 PM
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Not sure about 911's but the 44 crowd has a bypass that is easily performed. I had a friend not able to start his 87 944 after a heavy rainstorm. I traced it back to no power to/from the ignition switch to DME relay. The jumper basically reroutes the 12v signal around the alarm box bypassing it. I would think there is a similar procedure for 80's 911's.

Found this:
86-88 Cars

The Control box is above the DME in the passenger compartment. It is a 3"x5"x2" black box with blue lettering, and has 2 connectors. One connector has 2 wires and is the output of the control brain. The other is an 8 pin connector for the various inputs. To disable, unplug both connectors and with a jumper wire, jump pin 1 (green) to pin 4 (red/black). The early cars do not have a fuse or relay to bypass the alarm control.

89 and later cars

There are 3 components to the alarm. The control box, a fuse in the main panel, and also a relay in G18. Assuming the fuse and relay are fine, remove the connectors as stated above. (control box also above the DME) Jump pins 7 and 8. If it still won't start, try jumping 4 and 6 as well.
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