[Pissedoff]

Had a thermostat housing leak and took it to a dealership, ac worked. Now it blows hot air, and mechanic thinks it's a ground wire in the brain of the car! I tried to recharge but did not need freon. Anyone have issues or know what this is*

 

[JLL]

A car has a brain?

If the A/C worked when it went in and didn't when the car came out of the shop, take it back and tell the service manager to figure out what broke while it was in.

 

[Snipesy]

Scan tool. HVAC Module.

 

[snowwy66]

They're wired through the BCM to ground.

 

[Blasirl]

A car has a brain?

If the A/C worked when it went in and didn't when the car came out of the shop, take it back and tell the service manager to figure out what broke while it was in.