SE DA USA

How do I disable the "1 to 4" skip shift feature on my 2005 C6?
Where is the connector located?
Can I just disconnect it, Or does it require a part?
If a part is required, what is it called and where do I get it?
Any info will be sincerely appreciated.
Thanks ,,,,,,,,,Ed

hazchris

recent post revealed removing #10 fuse I believe, much easier than disconnecting at the tranny ! use search and check it out !

calemasters

Pulling the #10 fuse will set a code, but the MIL will not turn on.

Disconnecting the CAGS will turn on the MIL and set a code.

The best way is to install a CAGS eliminator ($15) which contains a resistor of correct value. This way there will be not codes set and no MIL.

User 020720

Not sure if removing the fuse will throw up codes, I think it does. Either get a $20 skipshift eliminator or get a tune and disable CAGS. I chose the tune route and am very pleased. I can also re-enable it if necessary. Search the forum, lots of topics on this.

Dave Tracy

I put on the skip shift eliminator-easy mod.

vettecop1125

I had the bypass kit on my C5 and it worked great. For the C6 I'm going to have it tuned out by DTE when they do my H/C package next week.

SE DA USA

Thanks tor the tip.
I removed the fuse and it disabled the shift skip.
Only problem is "Check Engine" light in instrument panel came on.
I replaced the fuse and Shift Skip" began working again but "Check Engine " light remains on.
Maybe the computer is seeing the open circuit as an emission system problem, but replacing the fuse didn't make it happy
How do you reset the computer?
Thinking about disconnecting and reconnecting the battery but don't really want to reprogram whatever is lost when doing that.
Any ideas,,,,,,,,,,,,Ed

Hoonose

Actually window indexing is about all you will lose.

thetopdog

I read on here that after 40 cycles of turning the car on and off, the light will go away

cbrf4i1

don't listen these experts telling u to pulling the fuse #10 will disable skip shift without cel. it will not work, many has try it and get the same cel. u can do nothing and wait for enough cycle on the pcm for it to reset or you can unplug fuse #11 for 10 sec or so. this will reset everthing on your pcm, & clear the codes, or just delete it with a code scanner at your local auto parts store.

i had use a 2.2k resistor for over 15 months now with no issue, you do have to get under the car.

mwestc5

C5 Z06 Track Day Car
Original owner, (I've had car for 3 yrs) had skip shift delete kit installed years ago. Last year while at the track CEL came on. According to the code (PO803)it has to do with the Skip Shift deal. I've cleared it with my code reader but eventually it comes back. I've been ignoring it the past 1.5 years. But, car needs to go in for state inspection this month. I'll clear the code and hopefully it will stay off long enough to pass inspection. It seems if you have a CEL that you've cleared you need to drive it at least 50 miles so it does not show up on the states test. A few years ago I cleared a CEL and went to state inspection, it failed. Inspector asked me if I recently cleared a code. He said I should drive it at least 50 miles and then bring it back. I did and it passed and CEL came back on a few days later.

Any idea what caused this CEL Code to appear and what the fix would be.
Thanks

BlindSpot

Yeah, a simple scan tool would erase the code, or do all kinds of crazy antics some think work, but doesn't. The skip shift is considered an emissions related circuit (and device) that was required to get the Corvette certified w/o a gas guzzler tax, thus, the circuit design had to include a failure notification. So the circuit is monitored for current. If it detects an electrical failure (no current from pulling the fuse) it sets a CEL.

The "correct bypass" is to put a resistor in the circuit which reduces voltage to the trans solenoid. The circuit always maintains a current but the resistor keeps voltage low enough that it is not enough to energize the trans lockout solenoid. The dash lights still show skip shift, but the lockout doesn't work allowing you to control what gear you want at any time.

When done through the tune, essentially, you're telling the ECM to stop checking for voltage in the circuit, so skip shift is never commanded and no light set. Either a resistor or the tune route does the job correctly.

mwestc5

Blindspot
Thanks for your response. I'm no mechanic aside from doing my own brakes/fluids I'm pretty much lost mechanically. I read your explanation a few times and was just as lost the last time I read it as the 1st time. But, you got me thinking and I did more research based on what you said. I found a few more posts and pics of the process you described. After reading your post again it started to almost make sense to me. I now think it's something I may be able to handle. But, it also got me thinking. The original owner had some kind of skip shift delete thing installed. I saw the bill for it in the mass of papers he gave me.
I am thinking maybe something originally installed came loose and my guess is it's probably in the same location as the the fix you described would be. As soon as I get time I'll jack up the rear of this thing get a couple of jack stands under there and check out the original fix and see if I can either fix it or do what you described.
Will let you know how it turns out.
Thanks

BlindSpot

OK, no prob. Let me give you some more. If you're going to use a "resistance" in the circuit route, instead of the tune, there are two ways of doing it. One, is with a "resistor" fuse that plugs into and replaces the standard fuse. This fuse reduces the voltage in the circuit, but is unreliable (wait, so many are coming to say their fuses have lasted multi million miles - LOL). The fuse gets too hot and eventually blows. Then there is a skip shift harness that plugs directly into the trans and places a resistor into the circuit there. I've used the trans harness and it was reliable, but then I got into tuning and tuned out the skip shift myself. So, look at the fuse, then look at the trans plug/harness and see if there is a bypass there.

mwestc5

Blindspot
I searched through the original owners records and found this:
CAGS (Skip Shift) Bypass Harness, Installation Instructions.
Looks like this is what was installed. Sounds like what you're talking about. I've got the install instructions and some pics. I'm guessing something here got disconnected. My plan is to get under here in the next day or so and try and trouble shoot this thing. I'm heading to the track on Sun for Mon-Tues. I expect a few Vette guys to be there, if I have not figured it out by then I'm hopeful someone there can figure it out. Will let you know how it turns out.
Thanks

BlindSpot

Here is a stupidly bad pic of mine when I had it (before tuning it out). Look for this connection on the DRIVER's side of the trans, The original plug is seen in the distance and the bypass harness plugs into the trans and then into the original harness. It is possible the resistor in this harness failed. If so, google CAGS bypass harness, there are vendors out there with a replacement - $15-$20. Simple plug/play.

mwestc5

Blindside
Thanks for the pic.
Looks pretty simple. If it needs to be replaced I saw these harnesses all over Ebay between $10-$20.

Illinois427

Guys,

I successfully followed the instructions in this link:

https://xse.com/leres/z06/cags.html

You'll need to buy a 10 amp mini Littlefuse Smartglow fuse. The part number for that is 0MIN010.VPGLO and they are available at autoparts stores, Amazon, etc. You'll then need to blow the fuse. I used the battery charger method, but I believe you can also short it across the battery. The LED will start glowing when it is done. Then swap it out for the existing CAGS fuse at position #10 (important, must be this position, lots of people put it in the spot for their interior lighting and tail lights by mistake) in the underhood fuse block. That's it, you are done. No under car work needed. No check engine light. Just easy 1-2 shifts without CAGS. The shift indicator on the gauge cluster will still illuminate, but the servos are disabled so no skip shift at all.

Vette_DD

Here's how the 2005 owner's manual tells you to eliminate that problem on page 2-28:

Just avoid those 3 situations.

SladeX

The resistor is the cheapest method and fairly simple to jury rig into the connector.

I did mine via tune and basically made the conditions for skip shift impossible to happen. Since I mess with the tune on both my cars, getting HP tuners was a viable option for me, but if you do want to learn to tune your car, you can buy a tuner program and remove unwanted things like torque management or skip shift....