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ggrote1, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 16893
Experience:  26 year GM master tech
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My 2007 Cadillac CTS won't start. Everything works security

Customer Question

My 2007 Cadillac CTS won't start . Everything works security light keeps flashing . No click when I turn the key or nuttin. My wife said service engine soon light blinked the other day and went off. What might it be
Submitted: 1 year ago.
Category: Cadillac
Expert:  ggrote1 replied 1 year ago.

I am sorry your having this problem

do you have another ignition key to start to start this car ?

Customer: replied 1 year ago.
No I sure don't both keys i have don't work . I bought a crank position sensor was gonna try that
Expert:  ggrote1 replied 1 year ago.

the crank sensor should not be the issue

as the engine would physically crank over and just not fire up if there was a crank sensor problem

with it showing the security and it will not even crank over the odds are the issue is the theft module that reads the key

as the security system is activated this kind of issue will happen

# ***** in this picture

Expert:  ggrote1 replied 1 year ago.

how are you making out ?