[RaehZa]

I did this How to Diagnose Air Conditioning Malfunctions | EclassBenz.com

and I received these 3 codes

B1241 - Low refrigerant
B1416 - Coolant Circulation Pump
E FF

I recharged the gas twice already professionally with a recharging machine. I replaced the the A/C Temp sensor and the A/C pressure sensor and the receiver drier. I even replaced the Evap Temp sensor and I still have the issue.


The problem is that the AC works for a few minutes, but after I shut off the Car and restart it, the EC light comes back on and stays on. I rechecked for codes again and its STILL giving those above mentioned problems even after replacing all above mentioned parts.

The only way I can get the A/C running again is when I shut off the car and put the Key position on 2 and hold the REST button for 5 second to turn the Temperature check mode on.

After re-reading all temperature from all the various sensors again and turning the car off and back on EC light goes off and the AC works for as long the Car is running. But as soon as I shut the Car OFF the damn light comes back on...


It is an extremely weird problem... It seems like everything I did didn't do ANYTHING.... I know that the A/C is not leaking out.... and even if it would leak out, it's impossible that the Car would give me the low refrigerant code soon after recharging the system...


By the way, I recharged the Car with 2.8 pounds of freon since it has rear vents.

What should I do?

 

[RaehZa]

nvm, I fixed it

 

[hellviper944]

How did you fix it ?

 

[miloking]

yeh how did you fix it? I have similar issue here....

 

[yallow tooth]

I have similar case but A/C works and goes EC lights after while, the main problem is an over pressure in the Freon storage and the sensor tripping the compressor for it's safety, so i have to change the A/C pressure sensor, the receiver drier and clean out the piping, if the problem solved or i have to replace the screen (i have screen contains all A/C, CD, Navigation ECT..) that what the Technician said .

Raehza , do i have to go with the Technician suggestion or is there any way to solve the problem.

pleeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees reply....

 

[RaehZa]

sorry for the very veery late reply but the way I fixed the problem is by simply reseting the AC control unit AFTER doing all the necessary repairs. I forgot the exact procedure but I believe that you can find the procedure in the link thatg I have posted in my original post.