I have question if someone can help. My c5 has that traction button with the skid turns on & off. Is this the active handling everyone associated with the steering wheel sensor? From what I read here we are Stuck with no sensor for 99 c5. Mine working but I plan on keeping my loved c5 and looks more now that this issue hasn't been fixed. The only year corvette without a damn plastic sensor replacement. I ordered a expensive used spare but seems to be even a challenge to install. I really bummed out over this .. besides the ecbm and bcm also expensive to replace but more easier to obtain .. I bought this corvette thinking American gm parts shouldn't be a hassle to find. .. I don't want to sell my c5 hopefully I still feel that way in a few months .. so much for American

 

No, it is not. Traction Control and Active Handling are two different systems. Consider yourself fortunate.

From what you are describing, your Traction Control/Active Handling switch panel should look like this (also notice there's no airbag light), and only includes the Traction Control on/off button:



If you did have AH (or Selective Real Time damping), there would be an additional selector switch on this panel.

AH was optional on the '99s and did not become standard until 2001 I believe. My '99 also does not have AH and I'm very glad, because of the very reason you stated regarding the unavailability of the steering sensor.

HTH

 

I feel blessed now, I dont have it

 

So that bring me to the magic question... Since I only have traction button. Does it mean I lack Wheel sensor?

 

Do you mean steering wheel position sensor? If you mean steering wheel position sensor then yes, you are correct.
TTBOMK, GM did not fit the actual sensor to the steering column on non AH cars, but I don't know that for a fact. In any event, even if it's there, it's not doing anything.
Does your switch panel look like the one I posted? Do you have the owner's manual? If not, do a search on the subject, but be careful to not get AH and TC confused.

 

I have been doing some reading on this recently and the SWPS is used on non AH cars.
From '97 Service Manual. No AH in '97.
• "The Steering Wheel Position Sensor (SWPS) incorporates two distinct sensors in one housing. This is done for ABS/TCS and RTD. The RTD needs high resolution analog steering information over a limited range of travel. The ABS/TCS uses a digital signal with the resolution of 1 degree over the full range of travel.
RTD high resolution analog signal is used for Option F45 Real Time Dampening."
As far as I can tell the SWPS digital signal is not used directly by ABS or TSC but is used by Magnasteer to control steering effort in an ABS or TCS event. It is also used in normal driving to adjust steering effort with varying speed. The Magnasteer controller is an integral part of the EBTCM.

 

Yeah, I forgot about Magnasteer. It's been a long time since I dealt with that system.

 

Just to be clear, if you have the traction control button AND the Touring/Sport/Perf **** on a '99, that means you have the active handling option? I thought the selective ride was separate from AH option?

 

Look on the door to your glove compartment There should be a sticker listing all the RPO codes for your vehicle.
Active Handling is option code JL4
Selective Ride Control (RTD) is option code F45.

8Vette7: I see you're awake now. Caught you napping yesterday.

 

After reading this I am confused on what is on my 02 and what I can do to fix the error message.
I had the Selective Ride Control (3 position dial switch) and the F45 shocks. I've replaced the shocks and sway bars with Pfadt and I installed Ligenfelter Sims on the ends of the plugs at the shocks. Then I took out the center console cover with switch and replaced it with one without the dial. It looked like a plug-and-play. BUT, now I'm geting a "service active suspension" warning on dash display. I presume that is becasue I unplugged the dial switch. Would have been easy to check, but I threw it away since I had thrown away the shocks. Did seem any sense to keep.

But now I realize I need either rewiring instructions or a simulator to plug into the open end of the dial switch. I can't find such a simulator so I'm hoping one of the forum members can help me.

Thanks,

 

This is really great news .. I understand now the traction whole different thing. I do have just that button that picture for my 99.. I now have an extra steering wheel position sensor!! I bought it hefty price .. 380.00. So stupid that no aftermarket has step up that I know of making this part. I can now spend my time gathering extra ecbm pcm and bcm as parts for my car ..I never plan to sell my 99.. I don't like C6 or the other vettes. I am strictly 99 c5 owner .. purchased a tech 2 clone just arrived .. and seeking to find now my battery drainage problem. The story is. I upgraded my headlight motors to brass ones.. during install I invertley reversed the actuator on one so one head light would go down the other up. I had no time to fix work week left my c5 with headlights off. However the module I think still gets energized and ran down my battery. I am about 70 percent sure that the problem .. the alternator shows charging past 13 volts on meter car. So I had my battery exchanged too so depleted I think broke my battery with it only 4 months old. If anyone else knows what to check for drainage issues let me know .. I already rule out dash and mirror or glove box lights all go off. My after market alarm draws very little current made to be standby mode .. I don't want to ruin another battery !! Thanks to all so much help here .. JOE

 

I posted this in my other thread about my deletion of f45 on my 98. It got me thinking about a possible solution for deleting active handling.

So just to update, the dealer was able to delete it and yes, 8VETTE7 is correct that the whole category 38 goes away. Procedure #1 for my 98 did not work, but the second procedure did.

At any rate, this got me thinking. It seems that as long the module is connected, in this case the ESC module in the trunk, then you cannot delete that feature. Because TechII allows you to "unstar" certain features seen below for the deletion of Real Time Dampening, would that mean that it can be possible to delete Active Handling as well, granted that you disconnected whatever needed to be disconnected in a similar fashion as how the ESC must be disconnected to get rid of the F44/F45 DIC from showing up?

 

If you can find the resistance value of the switch you could probably make a switch simulator using the correct value resistor.

 

I have a 99 with AH and NO Selective Real Time Damping. I only have the one button as pictured above but it has the words "Active Handling" printed above the button.

 

You seem to have a good handle on the different systems, so maybe you can either help me or direct me toward someone who can. When I replaced the shocks and installed the sims on my 02 with Traction/suspension control, I also replaced the console cover with the rotary switch with one without the selector switch. I know what I did was REALLY DUMB! But since it is long gone in the trash I need to either find another switch, OR get the resistor values for the differences between pin 7 and 8 in the switch itself so I can make a shunt. Any ideas?

 

If you just have Traction Control It will not have Active Handling printed above the switch and it turns TC on/off

If you have AH it will be printed above the switch. On a car equipped with AH the one switch controls AH on/off and TC on/off. The best way to tell if you have AH is look for RPO code JL4 on the label in the glove box. AH uses a different ETBCM than cars with just TC.

Real Time Damping (Shocks) is a completely different system and is RPO F45. There is a separate selector switch for that.

 

So I recently came across some troubles in my 99 Automatic C5. Ever since I've owned the car my traction and abs light has been on. Wasn't a big deal to me until I was on the freeway and the dash board said ACTIVE HANDLING and my car wouldn't accelerate no more. This happened twice to me, now I just drive with me Traction Off and it drives fine. My most recent problem is my car lost a lot of power in 1st gear and doesn't lose traction and or burn rubber anymore when Traction is OFF. It's very frustrating can someone please help me.
CODES

10-PCM : P1571H, P1689H
28-TCS: C1225H, C1226H

 

QUOTE

You should fix it when u can. I don't know what state your in but in NY your car would fail
​​​​​​inspection .. so much regulations when most states don't have that idiotic smog test that has to pass the state machines. I had to buy extra ebcm lucky found one spare nearly almost new put it away for that dreadful day mine goes.. I am also working on a few ebcm using
cores and I am swapping out parts to see what are the common problems . I also fixing and moding one installing a small board fan and heat sink. These unit do get hot only reason the board drowning in gooy gel like substance to cool the part down just few degrees see if this helps.using bypass switch and turn on from inside car. . I have computer tech certifications help me get around electronic boards..ham radio operator. If anyone has bad ebcm non active handling want me to try fix it I be happy to work on it. I getting shipment of the relays now.. and I have a few capactors spares to resolder leads and may fix these in future I hope.. I pissed off gm let c5 owners hang to dry.. as far as I know there are no place to fix M series 1997-2000 without active handling.. my attempt may be frugal but I willing to try and not give up on it. As long as the computer chips are not bad.. the board may still be fixed .