The A/C stopped blowing cold air while sitting in traffic

2010 TOYOTA COROLLA
162,000 MILES • 1.8L • 4 CYL • 2WD • MANUAL
Avatar
OPFPILOT
  • MEMBER
  • 2 POSTS
Blows hot air only. Thought it might be a compressor clutch relay. But, I can't find it. Any ideas?
Apr 30, 2019 at 3:56 PM
Advertisement
Avatar
ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good evening,

The first thing that needs to be checked is the pressures in the system. Without the proper pressure, the AC system will not come on.

Do you have a set of gauges to check the high and low side pressures?

I attached a wiring diagram for you. There is nor relay. The control head sends power to the compressor when it gets the correct signal from the pressure switch.

Roy

Apr 30, 2019 at 4:17 PM
Avatar
OPFPILOT
  • MEMBER
  • 2 POSTS
Thank you Roy, I'll give that a try.
Apr 30, 2019 at 4:22 PM
Avatar
ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
You are welcome.

Keep us updated.

Always glad to help.

Roy
Apr 30, 2019 at 4:27 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.