AC Light Flashing
Thread Starter
Instructor
Joined: Jan 2004
Posts: 175
Likes: 0
From: Loughborough, UK
AC Light Flashing
My ac was working fine last time I used the car, approx 6 wks ago.
I got the car out the other day, turned on the ac and the light flashes then goes out and I get no cold air.
Any ideas?
I presume it could be low refigerant pressure but wondered if anyone else had any thoughts.
Thanks
I got the car out the other day, turned on the ac and the light flashes then goes out and I get no cold air.
Any ideas?
I presume it could be low refigerant pressure but wondered if anyone else had any thoughts.
Thanks
Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
1) What does your external temp reading say? Is it correct?
2) How long does the light flash before it goes out?
3) Any codes in the DIC? P0530,P1545,B0333?
Check it out and let us know.
Could be a temp sensor, or A/C clutch circuit, or low ref.
2) How long does the light flash before it goes out?
3) Any codes in the DIC? P0530,P1545,B0333?
Check it out and let us know.
Could be a temp sensor, or A/C clutch circuit, or low ref.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
If the OAT sensor is dead and it thinks its cold outside it will inhibit the AC. The cut off is 34 degrees. What does the temp reading say?Its not been cold enough in UK today to give you a flashing AC
Thread Starter
Instructor
Joined: Jan 2004
Posts: 175
Likes: 0
From: Loughborough, UK
The external temp reading is correct.
The AC light flashes a few times (haven't counted) but think 2-3 times before it goes out.
Not pulled the codes yet, will do tomorrow.
Thanks Guys.
The AC light flashes a few times (haven't counted) but think 2-3 times before it goes out.
Not pulled the codes yet, will do tomorrow.
Thanks Guys.
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Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
