A/C Control Module?
#1
A/C Control Module?
Hello,
Over the summer our 1998 Blazer sat for three months on return home none of the controls on the module are working. I checked all the (3) HVAC circuit breakers and they check fine. Before I start throwing parts at the blazer is there a separate circuit breaker for the module? Or is it obvious since all three of the controls are not working I should just replace the A/C control module?
Thank you,
John
Over the summer our 1998 Blazer sat for three months on return home none of the controls on the module are working. I checked all the (3) HVAC circuit breakers and they check fine. Before I start throwing parts at the blazer is there a separate circuit breaker for the module? Or is it obvious since all three of the controls are not working I should just replace the A/C control module?
Thank you,
John
#2
Here is a photo of the controller I have in the 98 Blazer. I was able to determine the blower is working fine based on hardwiring at the blower motor control module. When I change the temp control no temp change is felt while driving. A small amount of air comes through the vent. Location of the air does not change as well. I would think that if the computer climate control was still functional the temp would change as well and the location of the airflow. Would the blower control module effect this too or just the operation of the blower motor?
Thanks,
JM
#6
Went through all circuit breakers mentioned and replaced them with others to be safe. Also exchanged the A/C relay with another too. No luck. Nothing on the computer climate control is functioning. I removed the unit. This model number (09356175) is not as available as the manual control unit. I did find one on eBay used for 79.00. I need to look over the return policy again. Will look for new this afternoon. Also will look to see if this one can be bench tested. The chance of finding someone on the Big Island of Hawaii is very remote.
#8
I did hard wire the blower motor down stream from the blower control module and the blower works fine.
#10
Sounds good. I have a volt meter will that be adequate. Is the HVAC module the unit I have a picture of on this thread?