I recently had to replace the PCM in my 2002 Bonneville SSE .When the problem with the PCM started, i noticed that when i was checking things , that my interior lights were not working when door(*) were open .They worked and still will work when turned on manually, but not when door opened .Any ideas where to start looking ?????

Also, before PCM replaced, the blower motor ( heat/air ) works occasionally .Is the blower motor bad or could it be something else ? relays, etc.If i reach thru the cabin air inlet and spin the cage, normally the fan will start to run until i turn car off ????????

I had the blower problem happen to my 2000 LeSabre. It was not the fuse or relay. It was not the part that spins around (fan). It was.... dang! The part way down under the dashboard?

I'll try to remember what it was.

No clue on the lights. Sorry.

I had 2 02 bonnevilles. booth needed new blower motor and shroud around 100K. No clue on the light issue