Looking for ECC info - ZR-1 Net Registry Forums

vilant · 06-03-2013

I noticed the LED on the ECC (Electronic Climate Control)flashing a few days ago. The FSM says it will flash 60 times a second (this has to be typo, must of meant a minute, which it is doing) at a fault detection. I entered the diagnostic mode and the first # was 00(No system faults)

. As I hit the up fan arrow, the numbers climbed all the way up to 37, in this order 1-7, 9-12, 16,17, 19-24, 30,31,34-37. The FSM only covers 1-10 and there's nothing in the electrical diagnosis supplement about it either. Anyone know where a can find the list of parameters or codes that these numbers represent?

Z51JEFF · 06-03-2013

Ive heard if its low on freon the display will flash.

vilant · 06-03-2013

That is true, 09 is low Freon detected. You would think that would be first number that popped up or when you select it and press the fan button (which gives you a value to whatever parameter is selected) I could see what its value is. I can't believe (although possible) all the numbers I scrolled through were fault codes. I believe they're parameters that can be checked to see what their value is. Thing is, I have no idea if value is good or bad without a reference. I'm wondering if there's a manual that just deals specifically with ECC, and if so, where do I find one.

vilant · 06-03-2013

Found some info on the internet that's not in my FSM, but some numbers are still missing.

scottfab · 06-03-2013

Quote:

Originally Posted by vilant

I noticed the LED on the ECC (Electronic Climate Control)flashing a few days ago. The FSM says it will flash 60 times a second (this has to be typo, must of meant a minute, which it is doing) at a fault detection. I entered the diagnostic mode and the first # was 00(No system faults)

. As I hit the up fan arrow, the numbers climbed all the way up to 37, in this order 1-7, 9-12, 16,17, 19-24, 30,31,34-37. The FSM only covers 1-10 and there's nothing in the electrical diagnosis supplement about it either. Anyone know where a can find the list of parameters or codes that these numbers represent?

What page did you see "second"?
My 90 FSM on 1C1-2 under Diagnosis says "minute"
It also says "00" represents that you've successfully entered the diag mode. Pushing the "Auto" button then lets you see the error codes. One for every time you push it.

vilant · 06-03-2013

Quote:

Originally Posted by scottfab

What page did you see "second"?
My 90 FSM on 1C1-2 under Diagnosis says "minute"
It also says "00" represents that you've successfully entered the diag mode. Pushing the "Auto" button then lets you see the error codes. One for every time you push it.

Here ya go. I didn't push the fan button after I entered the diagnosis mode, but I did scroll up and down. My FSM doesn't give all of the parameters, only 1-10.

scottfab · 06-03-2013

Here is what mine says:

vilant · 06-03-2013

Not sure when my manual was produced, but it does say to be replaced by ST-364-90. What's strange is, this FSM actually has the LT-5 engine supplement in it already. Your version actually says to push the auto button (I called it fan, because it has a picture of a fan on it) to get the codes, mine doesn't. I pressed auto after I was in diagnosis mode and got code 09 (low Freon). So there's my problem. I would still like to know what the other parameters not listed are.

scottfab · 06-03-2013

Quote:

Originally Posted by vilant

Not sure when my manual was produced, but it does say to be replaced by ST-364-90. What's strange is, this FSM actually has the LT-5 engine supplement in it already. Your version actually says to push the auto button (I called it fan, because it has a picture of a fan on it) to get the codes, mine doesn't. I pressed auto after I was in diagnosis mode and got code 09 (low Freon). So there's my problem. I would still like to know what the other parameters not listed are.

16 = Water temp in deg C

WVZR-1 · 06-04-2013

You might maybe check this thread over at the CF and pay particular attention to #5 in the thread, he's pretty much on top of the electronics and I've had others mention a "reboot" also. Don't know what the FSM mentions.

http://forums.corvetteforum.com/c4-t...ol-issues.html

See #5 for "reboot"!!

06-03-2013	#1
vilant Join Date: Jun 2012 Location: PA Posts: 772	Looking for ECC info I noticed the LED on the ECC (Electronic Climate Control)flashing a few days ago. The FSM says it will flash 60 times a second (this has to be typo, must of meant a minute, which it is doing) at a fault detection. I entered the diagnostic mode and the first # was 00(No system faults). As I hit the up fan arrow, the numbers climbed all the way up to 37, in this order 1-7, 9-12, 16,17, 19-24, 30,31,34-37. The FSM only covers 1-10 and there's nothing in the electrical diagnosis supplement about it either. Anyone know where a can find the list of parameters or codes that these numbers represent? __________________ Joe 1990 Bright Red ZR-1 #2599 Last edited by vilant; 06-03-2013 at 08:43 PM.

06-03-2013	#2
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,081	Re: Looking for ECC info Ive heard if its low on freon the display will flash.

06-03-2013	#3
vilant Join Date: Jun 2012 Location: PA Posts: 772	Re: Looking for ECC info That is true, 09 is low Freon detected. You would think that would be first number that popped up or when you select it and press the fan button (which gives you a value to whatever parameter is selected) I could see what its value is. I can't believe (although possible) all the numbers I scrolled through were fault codes. I believe they're parameters that can be checked to see what their value is. Thing is, I have no idea if value is good or bad without a reference. I'm wondering if there's a manual that just deals specifically with ECC, and if so, where do I find one. __________________ Joe 1990 Bright Red ZR-1 #2599

06-03-2013	#4
vilant Join Date: Jun 2012 Location: PA Posts: 772	Re: Looking for ECC info Found some info on the internet that's not in my FSM, but some numbers are still missing. __________________ Joe 1990 Bright Red ZR-1 #2599

06-03-2013	#7
scottfab Join Date: Jan 2009 Location: Portland Oregon metro area (Washington side) Posts: 3,207	Re: Looking for ECC info Here is what mine says: __________________ Scott Vett owner since 1979._It's about the car and the people

06-03-2013	#8
vilant Join Date: Jun 2012 Location: PA Posts: 772	Re: Looking for ECC info Not sure when my manual was produced, but it does say to be replaced by ST-364-90. What's strange is, this FSM actually has the LT-5 engine supplement in it already. Your version actually says to push the auto button (I called it fan, because it has a picture of a fan on it) to get the codes, mine doesn't. I pressed auto after I was in diagnosis mode and got code 09 (low Freon). So there's my problem. I would still like to know what the other parameters not listed are. __________________ Joe 1990 Bright Red ZR-1 #2599

06-04-2013	#10
WVZR-1 Join Date: Oct 2004 Posts: 1,890	Re: Looking for ECC info You might maybe check this thread over at the CF and pay particular attention to #5 in the thread, he's pretty much on top of the electronics and I've had others mention a "reboot" also. Don't know what the FSM mentions. http://forums.corvetteforum.com/c4-t...ol-issues.html See #5 for "reboot"!!