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2005 CTS no crank no start

1518 Views 6 Replies 4 Participants Last post by  lambert
As the title says my 2005 CTS has had this problem for some time now that it doesn't even try to start if i don't have the battery charger connected overnight after it starts up just fine, well sounds like a bad battery right? But even new battery didn't solve the problem and i ran a battery test which indicated that the battery was good.
Well then the weird part is that after an about 3 hour drive during which the car worked fine, i shut it off, and tried to start it and, nothing.
So what would be the problem? I've been worried about the ECM going bad and since i live in Finland, a new ECM from US is gonna take forever and the nearest Cadillac (or GM in general) dealer is in Germany so that's a no
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A common problem is the small slide switch in front of the sunroof. If that switch is all the way forward, the battery will drain overnight. If the switch is back just a little, no more battery drain. Hopefully your problem is this easy to solve!
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