Where is the starter relay on a 2006 Cadillac CTS? (video)
How do you override a starter relay? (video)
How do you override a starter?
Locate the starter motor under the vehicle.
Locate the two metal contacts on the back of the starter solenoid.
Place the metal blade of an insulated screwdriver across both metal contacts.
Get a friend to help you by turning on the ignition with the key.
Listen to the starter motor.
How do you change a starter on a 2007 Cadillac CTS?
Open the CTS's hood.
Lift the CTS's front end with your floor jack.
Climb under the CTS's front end with your socket set and the new starter.
Unbolt the power cable from the CTS's starter with the socket set.
Lower the starter out of the CTS's engine bay by hand.