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Old Jul 2, 2012 | 04:15 PM
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Default active suspension message?

Im looking at a 01 z06, after the deal on the car I was buying, had issues. Like the other, this car is not local to me, so an inspection is not possible till/if I fly there.

This car looks fairly clean, and has a good bit of performance mods done to it, including a built engine with some high end parts.

Two things, ......

The says the AC stopped blowing cold recently. He's only had the car a few months, and said when he bought it, it was cold, ....but now its only slightly cool air. He says the compressor keeps running, but its not cooling. 105 degree weather means Id have to put it in the shop right away, ...and I don't know an ac guy.

Also, theres a message on the dash, for the active suspension. He says this is due to the car having slightly different sized tires than what came factory. Does this sound normal?
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Old Jul 2, 2012 | 04:34 PM
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Originally Posted by Na4now
Im looking at a 01 z06, after the deal on the car I was buying, had issues. Like the other, this car is not local to me, so an inspection is not possible till/if I fly there.

This car looks fairly clean, and has a good bit of performance mods done to it, including a built engine with some high end parts.

Two things, ......

The says the AC stopped blowing cold recently. He's only had the car a few months, and said when he bought it, it was cold, ....but now its only slightly cool air. He says the compressor keeps running, but its not cooling. 105 degree weather means Id have to put it in the shop right away, ...and I don't know an ac guy.

Also, theres a message on the dash, for the active suspension. He says this is due to the car having slightly different sized tires than what came factory. Does this sound normal?
Have him pull all the DTCs, and email them to you.
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Old Jul 2, 2012 | 04:40 PM
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Probably means "active handling", but have him e-mail you the tire sizes when he sends the codes, too.
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Old Jul 2, 2012 | 05:18 PM
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Originally Posted by 65GGvert
Probably means "active handling", but have him e-mail you the tire sizes when he sends the codes, too.
Yes, .."active handling". I dont know about the fronts, but the rears are 315 35 18.

I'll ask for the codes, and post them later.
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Old Jul 2, 2012 | 05:19 PM
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Codes to help confirm that the Active Handling light is in fact likely due to the wheel/tire size.
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Old Jul 2, 2012 | 06:56 PM
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Just talked to the seller again.

It displays "service active handling", ...and he says there's no other dtc's.

So just the tire size being slightly different would do that? One of the previous owners had a set of 19" hre's on it, and didn't have that issue.

Doing some searches on it, ..I found where a member here made this statement:
Active handling isn't affected by over size tires or changes where the rear diameter even goes smaller than the front diamter. Active Handling depends on the steering, yaw, lateral G and wheel speed sensors but doesn't care whether the front wheel is spinning slower than the rear.
Opinions?

Last edited by Na4now; Jul 2, 2012 at 07:01 PM.
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Old Jul 2, 2012 | 07:05 PM
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Originally Posted by Na4now
Just talked to the seller again.

It displays "service active handling", ...and he says there's no other dtc's.

So just the tire size being slightly different would do that? One of the previous owners had a set of 19" hre's on it, and didn't have that issue.
Does he actually know how to pull the DTC's? A "service active handling" message in the DIC, is almost always associated with a DTC, because the EBCM is detecting a failure within the system.

My opinion.....call it a day. There are plenty of good deals right now on well maintained C5's.
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Old Jul 2, 2012 | 07:09 PM
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Originally Posted by Na4now
Just talked to the seller again.

It displays "service active handling", ...and he says there's no other dtc's.

So just the tire size being slightly different would do that? One of the previous owners had a set of 19" hre's on it, and didn't have that issue.

Doing some searches on it, ..I found where a member here made this statement:


Opinions?

Active handling isn't affected by over size tires or changes where the rear diameter even goes smaller than the front diamter. Active Handling depends on the steering, yaw, lateral G and wheel speed sensors but doesn't care whether the front wheel is spinning slower than the rear.



That's just not correct. The rear tire overall diameter has to be larger than the front. I don't remember the stock difference, but it's close to one inch taller in the rear. If they are equal or rear smaller, you'll get warnings everytime you drive. Do as the others say and have him go into the DIC and pull all the codes, not just a warning displayed on the screen. Tell him to include H and C (history and current) codes also.

Last edited by 65GGvert; Jul 2, 2012 at 07:11 PM.
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Old Jul 2, 2012 | 07:55 PM
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I asked the seller to pull the codes, and this was his response:

"The PCM doesn't control the active handling, so it will not show up on a regular scan tool. IIRC its controlled by the BCM. I'll have to call the dealer tomorrow and see what it costs to pull the code."

He seems like a straight up guy, and the car fits just what I'm looking for. I'd just like to get this stuff figured out before I make a commitment.
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Old Jul 2, 2012 | 08:04 PM
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The codes can be pulled by anyone sitting in the car and pushing the buttons. You don't need a scan tool or a dealer. This guy is either non-informed or non-cooperative. In either case, I would look around for another car. Enough evasion for me.
Next car pull the codes yourself, here's how:

http://api.viglink.com/api/click?for...13412740306153

Last edited by 65GGvert; Jul 2, 2012 at 08:07 PM.
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Old Jul 2, 2012 | 08:11 PM
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Originally Posted by 65GGvert
This guy is either non-informed or non-cooperative. In either case, I would look around for another car. Enough evasion for me.
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Old Jul 3, 2012 | 01:34 AM
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Thanks for the link! Im glad I know about that, now. The owner hasn't had this car but for a few months, so I doubt he knew about that procedure.

This car is a really sought after one. z06, decent miles, built (documented) engine, good color combo, ect. And it's not so far away that I couldnt drive it back.

Im really want a clean c5 with a good bit of mods. Id never be happy with a stock car. Ive sunk tons of money in modifying cars in the past, ..and Id really like to get one that already has a bunch of work done.

The cars Im looking at are 500+hp cars, and all of them seem to have some sort of issues, ...at least ones in my price range (wanted to stay under $18k, now looking at spending $22k.)

On this car, Im waiting to see if the seller is going to have the ac fixed. I dont want to buy something that has to go in the shop, right away. He says he's going to have it looked at in the next couple days. Either way, I want to get this trouble code thing figured out.
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Old Jul 3, 2012 | 04:23 PM
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Default Got the codes!

Okay guys, ...I got a video of the dic procedure.

I do know that the current owner, did just have the ac controls below the radio, replaced.

10-pcm no codes

28-tcs C1214 H

28-tcs C1278 H

28-tcs C1287 H C

28-tcs C1288 H C

40-bcm U1096 H

58-sdm U1096 H

60-ipc no codes

80-radio U1096 H

99-hvac U1096 H

ao-ldcm U1096 H

a1-rdcM U1096 H

a6-scm no codes

bd-rfa U1064 H

no more codes

Is any of this something to be worried about? Remember, I was told that ONLY the "service active handling" message pops up on the dash, and this is only supposed to be do from having different sized tires on the z06 wheels.

Im really interested in this car. Any help with this is appreciated.
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Old Jul 3, 2012 | 04:37 PM
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Originally Posted by Na4now
Okay guys, ...I got a video of the dic procedure.

I do know that the current owner, did just have the ac controls below the radio, replaced.

28-tcs C1214 H
28-tcs C1278 H
28-tcs C1287 H C
28-tcs C1288 H C

Is any of this something to be worried about? Remember, I was told that ONLY the "service active handling" message pops up on the dash, and this is only supposed to be do from having different sized tires on the z06 wheels.

Im really interested in this car. Any help with this is appreciated.
There are some potential uh-ohs. C1214 was the code I got when the EBCM failed. It is currently a history code, but I don't know if having a messed up tire combination will set that code. The C1287 and 1288 are the steering wheel position sensors IIRC.

Last edited by chaase; Jul 3, 2012 at 04:39 PM.
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Old Jul 3, 2012 | 04:37 PM
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Originally Posted by Na4now
Okay guys, ...I got a video of the dic procedure.

I do know that the current owner, did just have the ac controls below the radio, replaced.

10-pcm no codes

28-tcs C1214 H

28-tcs C1278 H

28-tcs C1287 H C

28-tcs C1288 H C

40-bcm U1096 H

58-sdm U1096 H

60-ipc no codes

80-radio U1096 H

99-hvac U1096 H

ao-ldcm U1096 H

a1-rdcM U1096 H

a6-scm no codes

bd-rfa U1064 H

no more codes

Is any of this something to be worried about? Remember, I was told that ONLY the "service active handling" message pops up on the dash, and this is only supposed to be do from having different sized tires on the z06 wheels.

Im really interested in this car. Any help with this is appreciated.
Ok, so right off the bat, you know there is a problem with the EBCM. You many get lucky with a relay replacement, but it could be much more....so much more going on here..than just a tire/wheel diameter issue. There are a boatload of communication codes, so you may have an ignition switch issue.
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Old Jul 3, 2012 | 06:25 PM
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Default another update.............

Turns out the ac was low on freon, and now blows cold like it should. Now, ...Im just wondering where it could be leaking from, because Id have to fix that. He said the ac tech said he couldnt find a leak, but it was half empty. ???

As for the steering sensor codes, ...he said the steering wheel is canted to the left, driving straight down the highway. From what Ive read, that can cause the c1287 and c 1288. Would an alignment fix that, possibly?

The EBCM code has me worried too. That can be an easy cheap fix, ...or a +$1k nightmare.

Sure seems like a LOT of c5's have a bunch of issues. I guess not the most reliable cars. Man, .,...my Supra, and my Lexus SC300's were rock solid reliable. I want a vette so bad, but now Im wondering if it's worth it. Even a previous owner of this car, said that maintenance would be expensive on it.
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Old Jul 3, 2012 | 06:38 PM
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Originally Posted by Na4now
Turns out the ac was low on freon, and now blows cold like it should. Now, ...Im just wondering where it could be leaking from, because Id have to fix that. He said the ac tech said he couldnt find a leak, but it was half empty. ???

As for the steering sensor codes, ...he said the steering wheel is canted to the left, driving straight down the highway. From what Ive read, that can cause the c1287 and c 1288. Would an alignment fix that, possibly?

The EBCM code has me worried too. That can be an easy cheap fix, ...or a +$1k nightmare.

Sure seems like a LOT of c5's have a bunch of issues. I guess not the most reliable cars. Man, .,...my Supra, and my Lexus SC300's were rock solid reliable. I want a vette so bad, but now Im wondering if it's worth it. Even a previous owner of this car, said that maintenance would be expensive on it.

Did the owner explain why he has not fixed any of the items listed, and more importantly, why he is unloading the car?
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To active suspension message?

Old Jul 3, 2012 | 07:01 PM
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Originally Posted by Na4now
Turns out the ac was low on freon, and now blows cold like it should. Now, ...Im just wondering where it could be leaking from, because Id have to fix that. He said the ac tech said he couldnt find a leak, but it was half empty. ???

As for the steering sensor codes, ...he said the steering wheel is canted to the left, driving straight down the highway. From what Ive read, that can cause the c1287 and c 1288. Would an alignment fix that, possibly?

The EBCM code has me worried too. That can be an easy cheap fix, ...or a +$1k nightmare.

Sure seems like a LOT of c5's have a bunch of issues. I guess not the most reliable cars. Man, .,...my Supra, and my Lexus SC300's were rock solid reliable. I want a vette so bad, but now Im wondering if it's worth it. Even a previous owner of this car, said that maintenance would be expensive on it.
You are talking about an 11 year old car here. Things will fail due to age. My C5 has been reliable
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Old Jul 3, 2012 | 07:26 PM
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Of the many thousands made, very few post here when they have cars with no problems. I have a two 03's and a 98 with no problem of any kind. Don't base your decision on the problems you read here, it's a very small overall percentage of the total
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Old Jul 4, 2012 | 12:20 AM
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Originally Posted by lucky131969
Did the owner explain why he has not fixed any of the items listed, and more importantly, why he is unloading the car?
The only thing he thought was wrong was the ac, ...and the "service active handling" message, which he was told by the previous owner was due to the tire sizes.

He says he's selling the car, because its too extreme, and doesnt have much room. It has a big cam, and its not real tame just cruising around.
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