Battery location on 2007 cadilac dts - DTS Cadillac Cars & Trucks

check brake light switch first if all 3 lights are out-- located under dash at brake pedal bracket

You need a wiring diagram, you can get one here. http://bbbind.com/free_tsb.html

Could be as simple as a bad relay. I would start by replacing it with a known good one of the same type.

The wheel speed sensor is located in the hub assembly, one on each wheel hub. The vehicle speed sensor is located at the rear of the transmission near the output shaft on the right side of transmission.

If your battery is dead, the key will stay in. Try giving it a jump. Also check to see if the steering wheel is locked. If it is, try turning the steering wheel somewhat vigerously whilst trying to remove the key. Short of that, it's a common problem with those year GM vehicles. Their ignition switches suck badly

the adjustment of the timing chain is hydraulic and self adjust to maintain correct chain tension. IF the mileage indicates that the chain may need replacing then these adjusters have to be compressed and pinned before chain removal . Check that any noise is not coming from valve rocker gear which wears out before most chains

2006-2007
FRONT Soft ride & sport suspension, 118 ft-lbs/160 Nm;
heavy duty suspension, 170 ft-lbs/230 Nm.
REAR Models with FE7 suspension 147 ft-lbs/200 Nm.

You will find all the fuses under the back seat driver side.

You may want to check the fuse...DIC/RKE located in the fuse panel.

It'll be located under your hood underneath the plastic shroud at the base of your window. You'll need to remove a couple of the retaining clips in order to lift the shroud up in order to access the filter. All you need to do is pull the old filter out once you have enough room and slide the new on in