Just Enabled The High Idle On My 6spd
 

Here are the instructions on how to enable the high idle on your 04.5+ 6spd. Very easy! It took me about 20 min. I bought the $10 connector from Peterbilt and grounded pin #22. (I by no means did this right up, I did supply the pictures though. Just sharing.)
:c:

So not to confuse the Dealer when he tries to enable the High Idle in the ECM, it's best if you've electro-mechanically "enabled" it first with either Step-1 or Steps-2 thru 3;

1) Buy the $200 clutch-switch kit and install as instructed. - Pass Go - straight to Step 4…

2) Install a "dummy" clutch-switch by shorting the ECM connector-B Pin #22 to ground as follows: (Note this probably circumvents someone’s concept of safe power-train operation as depressing the clutch with this method will not disengage the high-idle "cruise" setting)

2a) Buy a new ECM connector pin (I bought the Cummins Pigtail part number #3164263 for ~$10.00+tax at a local Kenworth dealer) or use an old junk yard harness to salvage a single pin with a ~6"-7" lead.

2b) If you bought the pigtail #3164263, the lead will be too short, so pick up some 18AWG to extend the lead length. The pigtail already comes with a crimp connector and a heat shrink insulator ready for the extension-lead.

- Crimp the ~5" 18AWG extension-lead into the pigtail and hit the heat-shrink sleeve with a heat-gun (or a lighter!!) Please check your own extension-lead lengths before crimping - this ~5" is from my lousy memory !!

- Add a 1/4" ring terminal to the end of the extension lead (this'll connect to a ground post) - I bought the ones with a semi-clear blue "plastic" sleeve, the sleeve is actually a weather-proof heat shrink. Hit the heat-shrink sleeve with some heat.

3) Remove plug B on the ECM (the 50 pin connector on the drivers side of the engine closest to the rear of engine with a 4mm Allen screw in the center). Note: this is probably best done with the both batteries disconnected first (I did mine with the batteries connected - sloppy).

3a) Push (use a paper clip) the sealing plug out of position #22 (starting at to left, count across, there are 50 pins total, #22 is second in from left, third row down) Note: #22 is the PTO/Clutch switch sense terminal (page 8W 80-98 in the shop manual).

3b) Insert the pigtail-lead into the back of the #22 until you feel a positive detent (click), lightly tug the wire to ensure that it's been properly inserted and cannot be removed. Note: Make sure that you've properly identified #22 - if you've put it into the wrong position, you'll probably need to head over to the dealer to use a special pin removal tool...

3c) Reconnect the ECM connector, don't bother trying to push it on, just seat it square on the ECM connector, and carefully thread the 4mm Allen screw until it bottoms out.

3d) Slide the ring-terminal over the lower-left post of the ECM retaining stud (mine stud had an extra ~1" of available thread)

3e) Add a 1/4-28 fine-grade nut to secure the ring-terminal to the ECM retaining stud, torque to... - oh hell - just tighten it !!!

3f) Reconnect the batteries if disconnected.

4) Take the truck to the dealer to enable the High Idle option. On older models, I think it's an actual TSB (18-004-04) to flash/load the ECM - my '06 just needed it to be enabled.

- If your tech can't figure out what/where a high-idle is (mine didn't know) tell him to follow these menu options (I think these are from the DRBIII and not the Star tool which they used on my '06)
- With the ignition in the “RUN” position, using the DRBIIIT select:
-> DRBIII Standalone
-> xxxx - xxxx Diagnostics
-> All (Except Below)
-> Engine
-> Misc. Function
-> Idle Up Feature Enable (the option is in the same place as the daylight running lights)

- Ensure that the after the flash option has been loaded to the ECM (TSB 18-004-04) that it also activated - this is a additional step !! Again - note that on my newer '06 they just had to enable it - not flash it as a TSB !!

5) If your tech knows his ABC's - he will know how to verify if the high-idle has been properly loaded/enabled - if not, here's how the high idle on my 6spd worked:

- Start truck.
- Stay off the clutch (if clutch switch was installed) and service brake pedals (recommend setting the parking brake on your 6 speed !!).
- Turn on "cruise".
- Hit "set".
- The engine should come up to 1,100 rpm.
- Then hit or hold accel;
- Each time you hit accel momentarily it should go up 100 rpm (Max is 1,500 rpm).
- Each time you hit decel momentarily it should go down 100 rpm (Min is 1,100 rpm).
- Hit the service brake pedal, the RPM's should drop back down to the normal ~750.
- Hit the "set" button, it should run back up to 1100 rpm.
- Hit "cruise" to turn off cruise and the RPM's should drop back down to the normal ~750.

6) If you have any follow on TSB's that flash the ECM, remind the service manager (or better yet the tech) to ensure that high-idle is to be re-enabled following the TSB flash. Mine was disabled after applying the 18-003-06 hard-start TSB last week.

7) Smugly recall the fella who posted his stout-lumber stick "High Idle Management Interface" picture next time you're at a long light out in the flatlands and hit your "Cruise, Set" buttons... Don't roll into the intersection !!


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Thanks, I will do this when I get mine back.

Tried it out this morning, works awesome! :c:

thanks for the info buckshot. very cool. :U:

quick question. I have a 2004.5 and what does this do for the truck do i have this or is there a way to tell.
Thanks
just getting info

Since you have an 04.5, my understanding is, it will work. Just follow the instructions. What it does is, it allows you to kick the rpms up when you leave the truck idling or at warm up. You turn the cruise on, hit set and it bumps the rpms up to 1100 automatically, if you hold down the accel button on the cruise, it will allow you to adjust the rpms up to 1500 rpm max. It helps to keep the cylinders from warshing down when the truck is idling. It's really great if you sleep in the truck or let it idle for long periods of time.

This is a very nice feature, I have used it several times while interstate was shut down and needed AC. Thanks Buckshot. :U: :U:

tHANKS FOR THE INFO:U:

I found out this morning, while sitting @ a stop light, it works great. It would also work great in traffic.

Sounds good Tye, I might have to give this a shot.. Doesn't seem to hard.. the hardest part is going to be to get my dealer to believe that the high idle can be eneabled on a 6 spd LOL... :D
Scott

Is the basic reason to connect pin 22 to ground simply to bypass the clutch safety switch? Is the purpose of the safety switch to ensure the clutch is disengaged?

I've done this too, but my BDTD has a "PTO" setting for raising the idle up even higher if need be.
I normally just hit the high idle and the Pac Brake to get it warmed up quick...

Do you still need to depress the clutch when starting? I believe I would out of habit and safety anyway, but curious none the less. Also is there a minimum rpm you recommend to avoid "washing the cylinders"? Thanks!

You still need to depress the clutch to start the truck. When you enable the high idle and it sets @ 1100rpm, that is more then enough to keep the cylinders from warshing down.

The Pin
 

The pin will simply insert in the back of the plug without removing it Correct??? I work on jets, a little bit different!!:argh:

You have to remove the ECM plug cause there is a little pin/plug in the hole to keep water/moisture out of the ECM.

Cool
 

Thanks, on the jets everything else is pretty much water tight so we can just slide it in the back without removing if we need to, but most of them have a cover from the back side of the pug on the jets!! :rocking:

Does this only work on the 04.5 + with a six speed or all the trucks with 6spds? I've got an '01 I'd love to have this option on.

Your Adrenaline has high idle

It only works on the 04.5+ trucks.

:humm:So is there a special way to complete it for the 48RE or is it the same?

I have an auto and the dealership did a flash to enable mine.

Anything like this for the 03 - 04?

I just went out and tried it on mine and it worked :choochoo::ok1:

The dealer has to enable the feature. On Auto's it just has to be turned on and it works. On the 6spd you have to do the for-mentioned process cause it's not considered 'safe' for the manual trucks.

so if im reading this correctly, when you do this on a 6sp no matter what when you turn cruise on and hit set... it will jump to 1100rpms?? it doesnt interfere with the normal operation of the cruise control on the highway?? it would be nice for in the winter to get it warmed up.. unless i am not thinking correctly... :humm:

Not no matter what, if the truck is is gear or your foot is on the brake it will not bump up to 1100. I use mine all the time now that I spent the 5 minutes to ground pin 22. Well worth the $13ish for the pin.

so just to clarify, if i do this mod, go get a pin and put in and ground out pin #22, when i start my truck and push the cruise on and set button my truck is going to jump to idleing at 1100-1500 rpms???? That is awesome.... definately going to have to do that..

When you engage the high idle it bumps the rpm up to 1100, you use the accel button to bump the rpms up higher, max is about 1600. Also, if your rolling/moving the high idle will not work. It gets a signal from the speed sensor.

GOTCHA!!:rocking: Gonna have to do this one.. Do the dealerships charge to have it reflashed?

It all depends on the dealer, I was never charged for it, but I know several that were charged.

HOLY SH$T!!!!! i just called the local dealership and they quoted me $120 to reflash the computer!!!!!!!!! i will pass on that...Gonna try another dealership

---AutoMerged DoublePost---

50 bux at another dealer... why so much to reflash it??

Does anyone know if this will work on the 6.7?

They don't have to flash anything, just simply turn it on.

oh i thought i read they had to reflash it.. Still that is crazy money to push a couple buttons.. A friend of mine, her dad works at another dodge dealer as a mechanic, i am going to see if he would bring his computer home one night so he could do it...

Good luck with that, the Star scanner is very, very expensive. I highly doubt he can take it out of the shop. You might see if he will enable it for you if he takes you truck to work one day or if you bring it in. It takes less than 5 minutes to enable.

oh gotcha.. The first dealership said that it would take an hour... I might have to swing past a dealer and ask them in person..

Here you go, the steps needed for the dealer, taken from the first post.

4) Take the truck to the dealer to enable the High Idle option. On older models, I think it's an actual TSB (18-004-04) to flash/load the ECM - my '06 just needed it to be enabled.

- If your tech can't figure out what/where a high-idle is (mine didn't know) tell him to follow these menu options (I think these are from the DRBIII and not the Star tool which they used on my '06)
- With the ignition in the “RUN” position, using the DRBIIIT select:
-> DRBIII Standalone
-> xxxx - xxxx Diagnostics
-> All (Except Below)
-> Engine
-> Misc. Function
-> Idle Up Feature Enable (the option is in the same place as the daylight running lights)

- Ensure that the after the flash option has been loaded to the ECM (TSB 18-004-04) that it also activated - this is a additional step !! Again - note that on my newer '06 they just had to enable it - not flash it as a TSB !!

I need 25 posts...sorry guys dont mind me. I want to start a thread but they say I need 25 posts first ....so here I go!

Hey I posted on this in the begining. you all said it bumps the rpms up to 1100 well i never did anything to my truck to do this but if it is cold and i start the truck the rpms already increase on its own to that and when i drive the truck and pull in to get coffie if the truck is not at full operating temp it will increase again only when its cold out.

I guess it came with the truck on my 04.5 6 speed?????? HUmmmmm:humm: