Was just thinking....:eek: think we should have some kind of "make sure you do this first list" ?

For tuning/scanning, what I mean is that everytime I've uploaded to my pcm, my radar has been plugged in and I just thought about how often that fuse blows, and it's the same fuse that gives power to the OBDII port.
I would really hate to forget to unplug it and something blow the fuse while reprogramming the PCM.

Also I know it's best to make sure your battery is charged on your truck and your laptop as well to keep from damaging something.

Im sure there are more "no-no's" while tuning, thought this may be of help for us in the future if we posted such.

I know I have a habit of rolling my front windows down, locking the windows, and locking the doors before I even plug in.

Anyone else have any more tips pointers of the like?

what about the guys with onstar? If they recieve a call during programming, how would this affect them?

Power Pup instructions say to pull the TBC-IGN, TBC-BAT, INFO, and RADIO fuses.

INFO is the OnStar circuit.
Warning: When you pull the INFO fuse, you will lose any minutes stored in the truck. Call OnStar and tell them that you disconnected the battery to clean the terminals and they'll restore the minutes.

I do not pull the radio fuse... my aftermarket unit does not retain memory and it's a PITA reprogramming all of the presets and Sat/Nav preferences.

Do:

Make sure the battery is charged and ok.
Remove the radio fuse.
Remove the Onstar fuse.
Make sure the cigar lighter fuse is ok. If not:
then, do find out why it's blowing...and fix it first.
Arm the parking brake, to keep the lights off.
Unplug or remove the power to any aftermarket radio input or output box.
Make sure the laptop battery is charged and ok.
Secure the laptop so it won't slip and close the lid, triggering hibernate.
Make sure your laptop isn't about to do a scheduled virus scan.

Do Not:
Have anything plugged into the cigar lighter.
Open the doors during the flash.
Do anything that would risk unplugging the ODBII or USB plugs.

For Good Measure:
Have the laptop on AC power.
Stay in the truck, with the doors closed (windows down).

This list is a mix on EFILive recommendations, Predator recommendations, and my own ideas.

the obvious needs stated as well right??

watch your cords around your feet so you don't accidentally pull them.
turn your radio (even oem) off.
turn off lights, if in garage or night time.
take a piss before you get in your truck :D

Removal of factory radio and XM fuse is not necessary wtih EFILive.

Aftermarket radio input or output boxes - yes, remove fuse.

the obvious needs stated as well right??

watch your cords around your feet so you don't accidentally pull them.
turn your radio (even oem) off.
turn off lights, if in garage or night time.
take a piss before you get in your truck :D Oh yeah, don't forget to bring enough beer. :D

INFO is the OnStar circuit.
Warning: When you pull the INFO fuse, you will lose any minutes stored in the truck. Call OnStar and tell them that you disconnected the battery to clean the terminals and they'll restore the minutes.

Well, you guys are going to have VERY clean batteries!.

Normally there should be no need to pull any fuses. The only time you may run in to trouble is with some after market audio/video equipment that does not 'behave' itself on the data bus.

Also, when doing a calibrations flash, if the process is interrupted, just retry and it will recover. not using windows and doors should not be necessary.

When scanning, try not to have over 24 channels of PID data selected or data rates will slow down too much, using Stream fast mode gives best logging speed with 24 channels.

Cheers,
Ross

Normally there should be no need to pull any fuses. The only time you may run in to trouble is with some after market audio/video equipment that does not 'behave' itself on the data bus.
The current revision PAC adapters seem to be fine... 4 BullyDog reflashes and the two GM recalls (GPCM and PCM) no problems.
I did call PAC and they said that it should be okay... there is a note on their site that rev 1.5 (I think) and earlier need to be unplugged.

I have an aftermarket alarm so I leave the door open while I download a tune. Otherwise I put the alarm in Valet mode to download. No problems. I even use the stock radio while downloading to help pass the time (no OnStar or XM on my truck). I don't pull any fuses and I've done quite a few downloads with 0 issues.

And for all the new guys, who like me may not know this, MAKE SURE YOU TURN THE IGNITION TO THE SECOND POSITION!

I just about had a corinary when I tried for the first time to download a tune, got the HI/LO battery voltage message, then had the truck not do a damn thing when I turned the key. A few minutes of searching and reading and I had her up and running, thank the Lord above for the diesel place!!! :ro)

And for all the new guys, who like me may not know this, MAKE SURE YOU TURN THE IGNITION TO THE SECOND POSITION!

I just about had a corinary when I tried for the first time to download a tune, got the HI/LO battery voltage message, then had the truck not do a damn thing when I turned the key. A few minutes of searching and reading and I had her up and running, thank the Lord above for the diesel place!!! :ro)

Yes, I have had my fair share of corinary's with this little issue! Got it all worked out now!

Bentley

I have an aftermarket alarm so I leave the door open while I download a tune. Otherwise I put the alarm in Valet mode to download. No problems. I even use the stock radio while downloading to help pass the time (no OnStar or XM on my truck). I don't pull any fuses and I've done quite a few downloads with 0 issues.

Leaving any accessories on especially the radio is not a good idea.

All it takes in one poll to the ECM at the wrong time during a read or flash and the next thing you know you have a locked up ECM. :(

Leaving any accessories on especially the radio is not a good idea.

All it takes in one poll to the ECM at the wrong time during a read or flash and the next thing you know you have a locked up ECM. :(

During a read! :eek: That shoudn't happen!

During a read! :eek: That shoudn't happen!

Consider the fact that I couldn't even read with a Quad when I had my XM module plugged into the back of the stereo and you get an idea of how sensitive these things are to traffic on the Can bus.

ok, dumb question. my cell phone creates a static(sp?) noise through my computer speakers and on some home radios right before it rings even when they are turned off. what do you guys think the chances of this messing things up when flashing ecm? right now i play it safe and leave it in the house.

ok, dumb question. my cell phone creates a static(sp?) noise through my computer speakers and on some home radios right before it rings even when they are turned off. what do you guys think the chances of this messing things up when flashing ecm? right now i play it safe and leave it in the house.

I wouldn't know if it will mess with the CAN BUS stuff but I do know that I am on my cell all the time and I have been on it more than once while flashing and it hasn't done anything.

Bentley

I wouldn't know if it will mess with the CAN BUS stuff but I do know that I am on my cell all the time and I have been on it more than once while flashing and it hasn't done anything.

Bentley


maybe when you are talking to Trippin or Kennedy it makes a difference :joke: :D

:funnypost

Consider the fact that I couldn't even read with a Quad when I had my XM module plugged into the back of the stereo and you get an idea of how sensitive these things are to traffic on the Can bus.
That concerns me a bit. What about when we are data logging? Isn't that almost the same type of bus activity as doing a read from the ECM?

That concerns me a bit. What about when we are data logging? Isn't that almost the same type of bus activity as doing a read from the ECM?

Data logging is quite different. There is no need to silence the activity from all the other modules. FYI,

I had trouble data logging with a Tech 2 when I had my aftermarket XM module plugged in.

Data logging is quite different. There is no need to silence the activity from all the other modules. FYI,

I had trouble data logging with a Tech 2 when I had my aftermarket XM module plugged in.

So just turning off the radio is good enough from what I currently do. I'm still going to leave my door open so the alarm system doesn't trigger anything.

FYI, I got this from PAC Tech Support -

When programming or re-flashing a vehicle's Body Control Module (BCM) or Powertrain Control Module (PCM), the factory fuse that powers the factory radio harness must be pulled from the vehicle fuse box before performing the reprogramming. Failure to discount power to or remove the new aftermarket radio and it's associated interface adapter OS-2, OS-2 BOSE or C2R-GM24 may cause programming errors and or render the vehicle's computer inoperative.Current products that are affected are: OS-2 with revision 1.2.11or lower, OS-2BOSE with revision 1.3.11 or lower, C2R-GM24 with revision 1.2.4 or lower and AAI-GM24 with revision 1.1.5 or lower.. Note to GM dealership: If this procedure is not done, the BCM, PCM or other computer modules will become PERMANENTLY inoperative when trying to program or re-flash new firmware using the TECH2. Replacing the module will be required, which will result in unnecessary costs to you and the owner of the vehicle.

FYI, I got this from PAC Tech Support -

When programming or re-flashing a vehicle's Body Control Module (BCM) or Powertrain Control Module (PCM), the factory fuse that powers the factory radio harness must be pulled from the vehicle fuse box before performing the reprogramming. Failure to discount power to or remove the new aftermarket radio and it's associated interface adapter OS-2, OS-2 BOSE or C2R-GM24 may cause programming errors and or render the vehicle's computer inoperative.Current products that are affected are: OS-2 with revision 1.2.11or lower, OS-2BOSE with revision 1.3.11 or lower, C2R-GM24 with revision 1.2.4 or lower and AAI-GM24 with revision 1.1.5 or lower.. Note to GM dealership: If this procedure is not done, the BCM, PCM or other computer modules will become PERMANENTLY inoperative when trying to program or re-flash new firmware using the TECH2. Replacing the module will be required, which will result in unnecessary costs to you and the owner of the vehicle. ok guys, so which fuse is that? might as well pull the INFO fuse while we're under there huh?

FYI, I got this from PAC Tech Support -

When programming or re-flashing a vehicle's Body Control Module (BCM) or Powertrain Control Module (PCM), the factory fuse that powers the factory radio harness must be pulled from the vehicle fuse box before performing the reprogramming. Failure to discount power to or remove the new aftermarket radio and it's associated interface adapter OS-2, OS-2 BOSE or C2R-GM24 may cause programming errors and or render the vehicle's computer inoperative.Current products that are affected are: OS-2 with revision 1.2.11or lower, OS-2BOSE with revision 1.3.11 or lower, C2R-GM24 with revision 1.2.4 or lower and AAI-GM24 with revision 1.1.5 or lower.. Note to GM dealership: If this procedure is not done, the BCM, PCM or other computer modules will become PERMANENTLY inoperative when trying to program or re-flash new firmware using the TECH2. Replacing the module will be required, which will result in unnecessary costs to you and the owner of the vehicle.

OK! Pulling fuses from now on.

OK! Pulling fuses from now on.

I wonder how you would go trying to get your adaptor updated?, looks like they fixed the problem in later revisions.

Cheers,
Ross

I wonder how you would go trying to get your adaptor updated?, looks like they fixed the problem in later revisions.

Cheers,
Ross
Adaptor updated?:confused:

Yes, what they are saying is in early adaptors they had an issue with data bus comms but they have fixed it in later revisons, eg -
"OS-2 with revision 1.2.11or lower"
So an OS-2 adaptor v1.2.11or lower will cause problems, but higher revisions will be O.K. That's how I read it anyway.

Cheers,
Ross

Yes, what they are saying is in early adaptors they had an issue with data bus comms but they have fixed it in later revisons, eg -
"OS-2 with revision 1.2.11or lower"
So an OS-2 adaptor v1.2.11or lower will cause problems, but higher revisions will be O.K. That's how I read it anyway.

Cheers,
Ross

How do we find out what we have?

How do we find out what we have?

These are stereo adapters for those who have installed aftermarket stereo equipment and are trying to get the stereo stuff to interact with the rest of the truck.

I'm still pulling fuses.

I'm still pulling fuses.

Don't worry about pulling fuses. Just turn off all the accessories before hand. :D