P1631 CADILLAC -

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Carguy1 · Answer 1 · 2018-02-09T12:52:02+0000

Hi there

This code points to an issue with the security system. This could be the result of a bad key or ignition antenna

P1631 CADILLAC - Theft Deterrent Start Enable Signal Not Correct

Read more: https://www.autocodes.com/p1631_cadillac.html