LLY: Do you have a floor-shift-4x4 truck with auto climate control????

[duratothemax]

Looking to see if anyone has a truck with these options:

2004-2005 LLY
NP261 floor shift 4x4
auto climate control

preferably short bed too

I know the combo exists because I found an LB7 with such an option combo...but I need LLY.

If you could please PM me your VIN that would be awesome (or if you have the EFILive tune file, that works fine too)...basically I just need it to figure out what 'system' segment calibration number the ECM OS has

thanks
Ben

 

[x MadMAX DIESEL]

When ever I'm looking for a VIN for parts etc. I search eBay or autotrader, might check'er out

Sent from my PC36100 using Tapatalk

 

[duratothemax]

Yeah, i tried that, couldnt find any.

 

[JoshH]

I didn't know you could get the auto climate control without getting the full floor console. I guess I never really paid much attention to it though. I just thought it was available on the top of the line trucks.

 

[THEFERMANATOR]

Heres a stupid question, but why is teh OS differrent from a floor shift to a push button shift? I know my 01 donor truck was a push button shift, and I had a floor shifter and the stock OS worked just fine with it. The TCCM had a hard wired output on my 01 TCCM that signaled that it was in 4X4 and another to trigger that it was in 4low. I know others have converted from push button to floor shifts, and all they had to do was to replace the transfer case harness with a floor shift one and it worked for them as well. Or is the LLY differrent?

 

[duratothemax]

Heres a stupid question, but why is teh OS differrent from a floor shift to a push button shift? I know my 01 donor truck was a push button shift, and I had a floor shifter and the stock OS worked just fine with it. The TCCM had a hard wired output on my 01 TCCM that signaled that it was in 4X4 and another to trigger that it was in 4low. I know others have converted from push button to floor shifts, and all they had to do was to replace the transfer case harness with a floor shift one and it worked for them as well. Or is the LLY differrent?

01-02 trucks and 03+ trucks have NOTHING in common. Everything electrical is done differently between the two generations. Nothing regarding 01-02 stuff will apply/carryover to 03+ trucks.

For me wanting this calibration, its not from a functional standpoint. Doesnt matter what OS you have. Either transfer case will work fine with either OS.

Its that, on the 2003-2006 trucks, the instrument clusters have a 4x4 indicator, right next to the check engine light. This light is only "enabled" if you have floor-shift 4x4. If you have push-button 4x4, the light is disabled, and your only indication that you are in 4x4 is the single LED on the "4 hi" button.

If you reflash your ECM with a manual-transfer-case OS, it re-enables the 4x4 indicator in the instrument cluster. (you might have to jumper a wire in the harness too on some trucks) I just figured that out last night, because I was curious what triggered the 4x4 indicator in the instrument cluster. No, you cant just "TAP-INTO" some wire going into the back of the cluster, its turned on/off with a data signal. Basically, push-button 4x4 ECM OS's are just programmed to NOT send the "4x4 indicator ON" data message to the cluster when you put it in 4x4.

I dont "need" the 4x4 indicator light...I feel like I pay attention to things when im driving a bit more than the average bear (ive never accidentally left my truck in 4x4 even though the 4x4 indicator is pretty hard to see on push-button trucks, ive never left my blinker on accidentally, etc)....its just that I like gimmicky things like this, and to make my truck different than others. Well I guess it wont be so different anymore, now that my "secret" is out about how to make the 4x4 light work on push-button trucks.

As far as what else is effected by the ECM operating system, I dont know. Obviously my power windows and all that stuff still works. The only thing I dont know is if my auto climate control will still be able to request AC permission properly or not. I guess Ill just have to drive around with this manual-transfer-case OS for a week or so to see what happens, if it still works properly.

Or maybe Ross at EFILive can give some advice as far as what are the specific other differences between the OS segments.

Ben

 

[duratothemax]

I didn't know you could get the auto climate control without getting the full floor console. I guess I never really paid much attention to it though. I just thought it was available on the top of the line trucks.

Yes, plenty of trucks have auto climate control without the center console. 3 of my friends have trucks with that option. That in itself is not really all that rare a combo. (all of their trucks are push-button 4x4 though)

Auto climate control with floor-shift 4x4 IS very rare though. I was so mad, I was looking through ebay ads of 2004-2005 dmax's, and the LAST truck I found, I scrolled through the pictures, saw the floor shift 4x4, scrolled through some more of the upper dash....and saw auto climate control!!! YES!!!!! FOUND IT!!!!!! I went up to copy the VIN so I could use it in TIS to get the calibration from GM and flash it into my truck....and as im copying it, I see the 8th digit is a 1. Dammit.freaking LB7. Of course... the ONE truck I find with this oddball combo is an LB7, so obviously the OS wont work for my truck. Ill keep looking I guess.

 

[JoshH]

I don't know how this plays into the jumper wire thing you mentioned in your reply to Ferm, but I know I can command the das 4x4 indicator light to come on with a Snap On scan tool. It would be nice to be able to have that light come on. The way I see it, if it's there, why doesn't it come on?

 

[jmaz268]

Not gonna lie....Think I feel pretty badass for being able to help you Ben...

It is however a LB...

1GCHK23215F970613

http://www.autotrader.com/fyc/vdp.jsp?ct=u&car_id=313682286&dealer_id=100009788&car_year=2005&systime=&doors=&position=top&model=CHEVC25&search_lang=en&only_photo=1&start_year=2005&body_style=TRUCKS&keywordsfyc=&keywordsrep=&highlightFirstMakeModel=&search_type=both&distance=0&min_price=&rdm=1329497207575&drive=4+wheel+drive&marketZipError=false&advanced=y&fuel=Diesel&keywords_display=&sownerid=587413&lastBeginningStartYear=1981&end_year=2005&make3=&showZipError=n&make2=GMC&certified=&engine=8+Cylinder&dma=CHAMPAIGN_AND_SPRNGFLD-DECATUR&page_location=findacar%3A%3Aispsearchform&body_code=32&transmission=Automatic&isFlashPlugin=true&default_sort=priceDESC&max_mileage=&color=&address=62615&sort_type=priceASC&model2=GMCC25PU&max_price=&make=CHEV&seller_type=b&num_records=25&cardist=576&standard=false

 

[duratothemax]

I don't know how this plays into the jumper wire thing you mentioned in your reply to Ferm, but I know I can command the das 4x4 indicator light to come on with a Snap On scan tool.

Yes they ALL have the light... Its just determined whether you have a manual shift xfer case or push button that determines whether the light is enabled or not.

It would be nice to be able to have that light come on. The way I see it, if it's there, why doesn't it come on?

Because you already have an LED indicator light on the 4-hi button, I guess GM figured it was redundant. If you think about it, from a technical ergonomics standpoint....when you have ANY pushable-button (doesnt matter if its for 4x4, air conditioning, or ejection seat), the indicator light for its function should be on the button itself, not on some adjacent indicator panel.

Because when you brain knows that "you push X button to select X funtion", if you want to know if X function is still selected, you unconsciously will look to where the button was that allowed you to enable the function in the first place. Which is why on push-button 4x4 trucks, the indicator is on the button itself.

People can say "well thats stupid", but if you think about it, from a technically-correct ergonomics standpoint, GM did do it the way they did it for a reason. I guarantee that if GM didnt have the indicator on the button, and the indicator was only on the dash, a LOT more people would complain about "thats counter intuitive and dumb". I know I would.

And second of all, honestly, I have no idea how anyone driving these trucks could forget they are in 4x4 just because the light on the 4x4 button is somewhat small and partially blocked by the steering wheel. Even blindfolded with earmuffs on I could still tell you in half a second if a truck is in 4x4 or 2wd.

Like I said, Im doing this purely from a gimmick/I-want-my-truck-to-be-unique point of view.

ben

 

[MACKIN]

I don't know how this plays into the jumper wire thing you mentioned in your reply to Ferm, but I know I can command the das 4x4 indicator light to come on with a Snap On scan tool. It would be nice to be able to have that light come on. The way I see it, if it's there, why doesn't it come on?

So Ben can make a widget!


Sucks I have a Escalade cluster so I don't have it. I don't have a wait to start either just a hole.

 

[duratothemax]

Not gonna lie....Think I feel pretty badass for being able to help you Ben...

It is however a LB...

1GCHK23215F970613

http://www.autotrader.com/fyc/vdp.jsp?ct=u&car_id=313682286&dealer_id=100009788&car_year=2005&systime=&doors=&position=top&model=CHEVC25&search_lang=en&only_photo=1&start_year=2005&body_style=TRUCKS&keywordsfyc=&keywordsrep=&highlightFirstMakeModel=&search_type=both&distance=0&min_price=&rdm=1329497207575&drive=4+wheel+drive&marketZipError=false&advanced=y&fuel=Diesel&keywords_display=&sownerid=587413&lastBeginningStartYear=1981&end_year=2005&make3=&showZipError=n&make2=GMC&certified=&engine=8+Cylinder&dma=CHAMPAIGN_AND_SPRNGFLD-DECATUR&page_location=findacar%3A%3Aispsearchform&body_code=32&transmission=Automatic&isFlashPlugin=true&default_sort=priceDESC&max_mileage=&color=&address=62615&sort_type=priceASC&model2=GMCC25PU&max_price=&make=CHEV&seller_type=b&num_records=25&cardist=576&standard=false

YES!!! Thank-you so much!!! Although Ill have to change the fuel tank size since its a long bed.... I know beggars cant be choosers. Ill try this calibration, then modify the fuel tank size in EFILive.

If anyone else happens to find one that is a short bed, let me know.

I really appreciate you finding this though! :cheers:

 

[JoshH]

Yes they ALL have the light... Its just determined whether you have a manual shift xfer case or push button that determines whether the light is enabled or not.

I know. I just didn't know for sure why you would need the jumper or what it would be hooked to. I was just saying I know for sure there is wiring there to make the light work on my truck.

Because you already have an LED indicator light on the 4-hi button, I guess GM figured it was redundant....

I wasn't saying get rid of the LED indicators on the buttons. I was just saying they could leave the indicator on the dash active. I don't see any good reason to disable it since it's already there. It would only take a few key strokes to make it turn on.

I'm actually a little surprised it is an ECM function.

 

[GMC_2002_Dmax]

HMMMMM,

My 2002 lights up the 4x4 on the dash, I used a jumper wire from the electronic t-case control to light the in dash 4x4 symbol.

Did that 5 or 6 years ago.

No need for a exotic reflash, just add a wire and it's good to go.

 

[KEVINL]

I dont know why gm didn't make all of them light up on the dash seems dumb to make it different

 

[TheBac]

HMMMMM,

My 2002 lights up the 4x4 on the dash, I used a jumper wire from the electronic t-case control to light the in dash 4x4 symbol.

Did that 5 or 6 years ago.

No need for a exotic reflash, just add a wire and it's good to go.

There's a member at the Place asking how to light the indicator. MaxPower did a write up on using a jumper wire like you posted, but the o/p doesnt really want to do that. http://www.dieselplace.com/forum/showthread.php?t=446668&highlight= Thats why Ben is looking into it. He just has to figure out if there are any unwanted "side effects" with using the new cal.

Ben, Id be interested to know the LB7 cal that you found if you'd mind sharing it.

 

[dmax_ty]

Ben, do you have a cal. for a truck with the push button 4x4 and a manual climate control?

I'm like you and can notice petty little things like the truck being in four wheel drive, but still would like to have the indicator in the instrument panel as well.

 

[THEFERMANATOR]

01-02's don't light up the cluster bulb with a push button either unless you hook up the jumper wire to a switched input. I played with this on my donor truck. I still have a feeling you are going to end up hooking in the extra input in the fuse panel.

 

[duratothemax]

No need for a exotic reflash, just add a wire and it's good to go.

Tony thats because the 2002 and older trucks have all of the electrical architecture sophistication of a 1985 K30. Jumper this, short that, resistor this, swap that wire. Great.

doesnt work on the 2003+ trucks. They use computers/databus for EVERYTHING.

 

[duratothemax]

I dont know why gm didn't make all of them light up on the dash seems dumb to make it different

I already explained this. "ergonomics and human/switch interfacing 101". Any "latching" push-button switch, whether its to turn your oven off or put your truck in 4x4, having the indicator light on the button itself (or right next to it) is the "accepted" way of doing it. Its not GM "being stupid" and "not caring about what you think". I mean come on, the difference is a software calibration, so you cant use the excuse like "OH THEY WERE TRYING TO SAVE A BUCK". Theres a reason.

Trust me (I know you will refuse to believe me though). You think its stupid to have it this way, I guarantee 100% that if it was the other way (no light on the button) you would think its stupider. Its one extra step your eyes have to do, go back and forth back and forth to "confirm" that your action (pushing the button) was acknowledged by the truck, whereas with the light on the button, all you have to do is look at the button, push it, and look back at the road.