P1682 Cadillac -

Question

I have Cadillac 2006 DTS some functions are working and some functions are not working like i can't start the car and lock and unlocked the door !

Answer 1

Check the fuse first, in the engine fuse junction box the fuse should be checked there a 40 amp fuse and a 15 amp listed as CRNK and fuse 23 which is the ECM fuse if either of these are open you can expect exactly what you have now