Page 1 of 1

A/C flashing "auto" after car wash

Posted: Sun Mar 17, 2019 6:04 pm
by timmy642
When I started my car (2012) this morning, the A/C was on Auto (flashing), and I was unable to change any settings (mode, blower speed, temperature, etc.). Everything was working fine yesterday, but I did not run the A/C after getting a car wash. Perhaps it's just a coincidence.

Has anyone else had this problem? Is it possible a sensor or something got wet and this will resolve when it dries out? Would pulling one of the fuses possibly help the system reset?

Thanks for any advice.

Re: A/C flashing "auto" after car wash

Posted: Mon Mar 18, 2019 10:55 am
by SAEED_KIZZY
timmy642 wrote:When I started my car (2012) this morning, the A/C was on Auto (flashing), and I was unable to change any settings (mode, blower speed, temperature, etc.). Everything was working fine yesterday, but I did not run the A/C after getting a car wash. Perhaps it's just a coincidence.

Has anyone else had this problem? Is it possible a sensor or something got wet and this will resolve when it dries out? Would pulling one of the fuses possibly help the system reset?

Thanks for any advice.
flashing AUTO means there are some error codes saved in HVAC module you should connect SDT diag tool to your car and check these codes to find out.
without SDT not much checking to do except check fuse and Relay for AC and also power and ground.

Re: A/C flashing "auto" after car wash

Posted: Mon Mar 18, 2019 1:02 pm
by timmy642
Thanks. I'll get those codes checked.

Re: A/C flashing "auto" after car wash

Posted: Tue Mar 19, 2019 1:00 am
by Ronzuki
timmy642 wrote:Thanks. I'll get those codes checked.
Let us know where you get those codes checked, and how all that went...please.