taz1001

Hello

I driver a 2005 Honda civic DX manual. Yesterday I started my car the blower went on full (even when off) and none of the buttons/settings on my temperature control are working (AC, rear defog, recirculate, temperature, blower setting or the air vent setting). Also it randomly goes away( everything normal) for 2-3 minutes then back to blower on full and nothing working.Turning the car off does stop the motor. I have searched the internet for hours with no luck, if anyone has an idea of what it might be please do share.

Things I have done so far
1)Tested the power transistor
2)checked all the fuses
3) checked all the relays
4) replaced both the HVAC controlling modules

Thanks

NDNV

Still think it has something to do with your soldering job on the accessory plug but let's see what this site thinks might help.

fcm

What HVAC control modules???

Because all functions are controlled by the heater control assembly and the Switch assembly, my guess is they are the problems or connections to them, or is that what you meant by HVAC control modules? 94