20 Most Recent 2007 Cadillac DTS Sedan - Page 7 Questions & Answers

Bad battery, replace with new one.

very easy just a feww floorr bolts and wire harness after pulling up some of the carpet

Take a passenger along and have the person pinpoint the noise and go from there

check starter brushes and engine earths or volt drop from ignition to starter solenoid

by pass the starter motor see the diagrams attached. God bless you

Most of the warning lights get power from the same circuit, and are grounded by their sending units, including the engine computer. So if one warning light is out, chances are the problem is the bulb or the circuit board in the instrument cluster.

Most likely the brake interlock switch on the brake pedal is faulty or disconnected or the solenoid which holds the shifter is faulty or disconnected.

Could be a problem with the airbag itself or could just be a faulty crash sensor. Need to take it to a shop that has a scan tool that will read airbag or SRS codes. Most handheld scanners can't read them.

You will need the dealer to check this out, the reason is the alternator output voltage is computer controlled on this make of car and it takes special equip to diagnose the problems that cause this voltage drop, it could be the alternator for it could be a poor connection or a defective powertrain control module