Blend doors
 

Newbie. Just joined this forum. Newbie to caddies.
Sorting out some issues for a disabled vet friends 2002 Deville DHS.
A/C on right side, but just ambient air on left side. Having worked on other GM cars I'm pretty sure its a blend door. I found the right side one in the glove box. Bench tested OK. But I have no idea as to the location of the left side one. Found some interweb vids on right side replacement but nothing on left side. Showing code IPM B0429. Also, found no ADL connector for a code reader. So all codes are pulled from the dash display?
Any help would be great. Thanks in advance.

How i can replace the ac blend door actuator on a 03 cadillac deville? ??

Please advice ... thanks in advance.