2003 Cadillac DeVille DTS : My Driver Door Controls stopped working

ANSINWA

MEMBER
2003 CADILLAC DEVILLE
46,500 MILES

Got the back seat removed. Disconnected battery for about 10 hours.

Came back, reconnected. Now I have more CURRENT CODES than before.

DDM : B3832 - Window Position Sensor Circuit

DDM : U1000 - Class 2 Communication Malfunction

DIM : U1000 - Class 2 Communication Malfunction

IPC : U1000 - Class 2 Communication Malfunction

IPM : B0429 - Temperature Control #3 Rear Circuit Range/Performance

IRC : U1000 - Class 2 Communication Malfunction

LRD : U1000 - Class 2 Communication Malfunction

MSM : U1000 - Class 2 Communication Malfunction

PDM : B3832 - Window Position Sensor Circuit

PDM : U1000 - Class 2 Communication Malfunction

RIM : U1000 - Class 2 Communication Malfunction

RRD : U1000 - Class 2 Communication Malfunction

TTM : U1000 - Class 2 Communication Malfunction

I also checked all fuses, found 1 burnt "front cigarette lighter" and replaced that.

Where do all of these Class 2 communication errors originate? Seems odd that they all are happening at once.

If I take it in somewhere, what will they be able to find that I cant via fault codes?

Also checked all fuses, found 1 burnt "front cigarette lighter" and replaced that. Where do all of these Class 2 communication errors originate? Seems odd that they all are happening at once. If I take it in somewhere, what will they be able to find that I cant via fault codes?Any ideas?

4 Replies

CADIEMAN

MECHANIC
3,544 POSTS

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Monday, January 9th, 2012 AT 8:08 PM

ANSINWA

MEMBER
2 POSTS

All controls on the drivers door stopped working. Locks, windows, mirrors, heated seats. There is still some illumination under a few of the buttons.

All other "passenger front, driver rear, passenger rear" controls work.

The only other thing I can find not working is when locking the car with the keyfob, it always used to flash lights and honk the horn.

Now only the lights flash. No horn.

But the horn still works via the steering wheel.

ANSINWA