put in new ac blower fan and new module and fan still does not work. on 2008 Buick Lucerne

fan will run if I bypass module

by in Queen Creek, AZ on November 09, 2013
2 answers 7 comments
ANSWER by on November 10, 2013
Did you get the same style of module that originally was there. There is one for manual a/c and different one for Auto a/c. Double check.
COMMENT by on November 10, 2013
Yes I did.Do you think that the new module that I bought may be bad?
COMMENT by on November 10, 2013
It sure can be; let me check something, be right back. Check the B+ voltage at the red/blk wire on the module, should be 12v, check the black wire for a good ground. The B+ comes from the fuse box under the rear seat, fuse #48, mtr 10amp. Also look and see if the terminals in connector to the module are not burned or discolored. I Will be in and out, Honey do's, will respond as soon as I can. What did you find out?
ANSWER by on November 10, 2013
Sounds like module but check your control switch before you head back to the parts store though.
COMMENT by on November 10, 2013
First things first!
COMMENT by on November 10, 2013
OK I checked out the ground wire and is ok. Checked out fuse and also ok. Will try tomorrow for a new module before I try the switch on dash. Thanks
COMMENT by on November 10, 2013
Does the connector to the module have discolored terminals at the red/blk or black wire ends. Sometimes I have to replace the connectors as well, because of bad connection to module. I know is a lot to ask just trying to make sure module is bad.
COMMENT by on November 10, 2013
the connectors to the module look OK. Thanks
COMMENT by on November 10, 2013
OK let me know