Gonna try clearing the codes again tonight. Just got home and My wife apparently took the Vette to the beach!
sensor mystery
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Maybe this will do it for you:
Thread Starter
Instructor
Joined: Apr 2015
Posts: 153
Likes: 12
From: Savannah GA
That's the first thing I intend to check on the A/C system. I don't think checking codes on the CC panel is an option for me since mine does not have the automatic control. See photo above.
Thread Starter
Instructor
Joined: Apr 2015
Posts: 153
Likes: 12
From: Savannah GA
OK. Disconnected battery for about 3 hours. Reconnected and checked codes. First code was C72, followed by H72 and H26. H15 code relating to engine temp sensor was gone.
Turned key off, waited about 10 seconds and checked codes again. just H72 and H26. Started engine and let idle. After about 20 seconds, check engine light popped on and cooling fans started.
Would a possible low refrigerant level as suggested by Cliff Harris trigger the light and fans? I'm not sure how the other two codes would relate to the fans coming on...
On a positive note, my wife drove the car to the NOPI show yesterday in 95 degree temps. Even idling for 15 minutes to get in the gate, temp never got above 220.
Turned key off, waited about 10 seconds and checked codes again. just H72 and H26. Started engine and let idle. After about 20 seconds, check engine light popped on and cooling fans started.
Would a possible low refrigerant level as suggested by Cliff Harris trigger the light and fans? I'm not sure how the other two codes would relate to the fans coming on...
On a positive note, my wife drove the car to the NOPI show yesterday in 95 degree temps. Even idling for 15 minutes to get in the gate, temp never got above 220.
Team Owner
Joined: Feb 2003
Posts: 54,073
Likes: 9,398
From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
OK. Disconnected battery for about 3 hours. Reconnected and checked codes. First code was C72, followed by H72 and H26. H15 code relating to engine temp sensor was gone.
Turned key off, waited about 10 seconds and checked codes again. just H72 and H26. Started engine and let idle. After about 20 seconds, check engine light popped on and cooling fans started.
Would a possible low refrigerant level as suggested by Cliff Harris trigger the light and fans? I'm not sure how the other two codes would relate to the fans coming on...
On a positive note, my wife drove the car to the NOPI show yesterday in 95 degree temps. Even idling for 15 minutes to get in the gate, temp never got above 220.
Turned key off, waited about 10 seconds and checked codes again. just H72 and H26. Started engine and let idle. After about 20 seconds, check engine light popped on and cooling fans started.
Would a possible low refrigerant level as suggested by Cliff Harris trigger the light and fans? I'm not sure how the other two codes would relate to the fans coming on...
On a positive note, my wife drove the car to the NOPI show yesterday in 95 degree temps. Even idling for 15 minutes to get in the gate, temp never got above 220.
Thread Starter
Instructor
Joined: Apr 2015
Posts: 153
Likes: 12
From: Savannah GA
Sorry, maybe I misunderstood your original post as it appeared you were questioning whether the cooling fans and the CES came on together, not stating that they should. Car runs great; just don't like looking at the CES all the time!
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