Recent content by ccclarke

There is only one BCM. The drawing illustrates two circuits with the BCM pinouts for brevity. When you remove the lower steering wheel trim panel, the switch is attached.

Using this schematic, note that the ignition switch is basically a mode select switch that communicates with the Body Control Module, located in the passenger footwell under the carpet. There's a major connector there that bears checking out, which only costs you time. Using a lot of...

If you're driving along and the switch mode select randomly occurs, one distinct possibility is a bad ignition switch. (I don't know how adept you are at electrical troubleshooting, so I'm keeping it simple.) You can check availability for a replacement ignition switch here: 25900943...

Rather than place the ignition switch on a shaker table and test it for continuity while simulating road bumps, I'd just replace the switch first since it's available and inexpensive. After that, you're looking for loose connections in the ignition circuit. CC

That will definitely disable the ACCS, but then it will light the DIC up with an error message. Why would any cruise control system be permanently engage without a way to turn it off? The owner's manual shows controls and indicators. Every Cadillac I've owned had to have the CC energized...

On the left side stalk, there's a three-position switch facing the driver. Move it to the left to disable the cruise control system. The center position enables it, and the right position resumes a set speed and can incrementally increase the cruise speed. (Straight out of the owner's...

The kit comes with easy-to-follow instructions for a clean, (hidden) installation of the AM antenna. No special tools required unless the wart was being installed with it. CC

If you don't own them, pick up a set like these: Eastwood 5 Piece Nylon Trim Removal Tools You'll be pleasantly surprised how often you reach for them. It helps to block the wheels and place the shift lever in Neutral to help move the cup holder assembly around. You may want to remove the...

Whatever the market will bear. Outside of Mecum, (where hype can play a role) $58k appears a little steep for a 14 year-old US car selling as pre-owned for more than half of its MSRP. Cadillacs typically depreciate to half their value in five years, sometimes less. Being a low-production...

The rear decklid bumpers are liquid-filled. Over time, they leak and require replacement. Some XLRs had a piece of adhesive-backed weatherstripping installed by dealers to repair a known leak issue on the early models. It also degraded over time and left a tarry film. CC

Start with strut replacement just to get the Folding Top to support the rear decklid's weight. AFter that, have a relearn done to get a baseline of the Folding Top system status. If any of the electronic components have failed, they'll be easier to troubleshoot with the data available during...

No memory setting for the faceplate. The switch that raises it might need to be checked. CC

The trim piece pops out with plastic trim removal tools. It's pretty easy to remove the decomposing foam gasket. Clean the old adhesive off and add new adhesive-backed foam available at any good hardware store. Reinstall and you don't have to worry (about that) for another five-ten years. CC

Over five years later . . . The XTS still runs like a champ. 28 MPG on regular gas and very quiet on the highway. Other than a broken weld joint on the front exhaust manifold, two magnetic shocks, and a set of new tires last year, it still runs and drives like new. Looking ahead to my next...

This is the kind of advice you get from someone who sells parts and knows next-to-nothing about the vehicle architecture. The cover in the front of the bumper is for the Adaptive Cruise Control, which if a failure is detected would give the "SERVICE RADAR CRUISE". The "SERVICE RIDE CONTROL"...