Re:Neighbor's house alarm triggers when I put my car in reverse
by TeMPOraL on Monday December 18, 2017 @01:11AM
(#15949785)
> For one thing, okay, we did that and the alarm didn’t go off. What did we eliminate?
Weird EM interference from electronics, ultrasonic backup sensors, Magic Stuff Related To Reverse #1.
> Alternatively, if the alarm did go off, this ex-mechanic would be at a loss as to how a car with no powered systems could do that.
Maybe it was caused by Magic Stuff Related To Reverse #2, or maybe it turns out the system is actually powered when you thought it isn't.
Looking over your other comments in this thread, I feel like you're approaching the topic from a position of someone who's an expert in cars and electronics, and thus has almost everything important in their memory already. But in cases when one isn't an expert with a thing one's debugging, I'd err on the side of doing the tests that seem ridiculous, at least if they're cheap to do. Discovering that it's probably Magic Stuff Related To Reverse #1 is a fair result, and should then be followed by reading up on what else gets activated/actuated when one's car gets switched to reverse.
Weird EM interference from electronics, ultrasonic backup sensors, Magic Stuff Related To Reverse #1.
> Alternatively, if the alarm did go off, this ex-mechanic would be at a loss as to how a car with no powered systems could do that.
Maybe it was caused by Magic Stuff Related To Reverse #2, or maybe it turns out the system is actually powered when you thought it isn't.
Looking over your other comments in this thread, I feel like you're approaching the topic from a position of someone who's an expert in cars and electronics, and thus has almost everything important in their memory already. But in cases when one isn't an expert with a thing one's debugging, I'd err on the side of doing the tests that seem ridiculous, at least if they're cheap to do. Discovering that it's probably Magic Stuff Related To Reverse #1 is a fair result, and should then be followed by reading up on what else gets activated/actuated when one's car gets switched to reverse.