Hi lexus owners im new to this site and have a bit of a problem. I have a 07 is250 with a a/c problem. I'm not sure what it is or have to fix it. It shows on My nav. Screen check air conditioner connection, but everything else work on the screen just no ac. I started first by checking the fuses and they are all fine. So today I took the radio out to see if there was a plug not connected to the back of the radio and all are connected except one. Seems like there's a blue plug missing and I can't find it where I could plug up to the back of the radio. Could that be the missing plug thats not making my ac work??? Please help I've been without ac for a year now and not trying to go another summer without it...

 

No, not having connector would not cause your problem. If I remember right, that connector is used only for ML systems.

Assuming that all of the electronics for the A/C systems are fine, I'd start by seeing if there's a leak in the system somewhere.

 

Do you know where would I look for leak at? I thought it was a connection problem because my auto ac light that shines green doesn't even come on when I press it....

 

When it comes to A/C systems, I've got zero knowledge on DIY fixes. It would be best to take it somewhere that has all of the proper equipment to look into this for you.

 

Alright thanks hopefully somebody on here will know the deal with my problems

 

IIRC, it's probably a relay problem. Swap the A/C relay with the horn relay and see if it works. If it works, buy a new/used relay.

 

Okay will do soon as I get home

 

Wasn't the relay unfortunately, wish it was. Checked all the fuses they're all good. Im About to give up on this car.

 

currently i'm facing the same issue . I was at my work and car was parked in the morning without any issues and it was raining heavily . In the evening when i started the car the memory seats does not work , park brake light is on even after disengaging it , ABS and power steering warning light stays on and the A/C does not turn on giving message on the screen "Check connection to the air conditioner"

Were you able to find out the issue