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When you do this, do you write entire?

And does this work across models too? Could he write a calibration file from a 2002 Tahoe instead of a 2002 Silverado? (given that it's the exact same...

So, if my truck won't start after timing out during a write calibration, I need to recover by doing a write entire, correct?

How did you know it was the USB cable?

I currently have my battery plugged into a trickle charger and waiting until it shows "Charged/Tending" before I attempt again, but realize that I need to...

How would one go about unbricking a P59?

Ok, I've pulled all those fuses and will also pull all the fuses for interior lighting, cluster, climate control front/rear, aux power outlets, A/C blower.

I've also had the battery on a trickle...

Ok, that?s a relief. I?ll hook it up to a charger, luckily I?m parked close enough where an extension cord will likely reach.

I let the truck sit overnight with that battery unplugged, scanner...

How to turn off the ac/blower motor? Do you mean turning it off by pushing off on the climate control? Or pulling the fuse? Or?

I definitely have over 12v on the battery, checked with multimeter,...

Yup, I cleared the code generated from attempting to read and it no longer ran rough.

I finally did get it to read, but when got the control unlocker timed out during the write, now it won?t...

Voltage is good, but I?ll put it on a trickle charger to top it off as well.

Can I try writing while connected to a trickle charger?

Thanks. I r already pulled the radio, radio amp and info fuses, I?ll also pull those two SEO fuses too.

I was able to read my ECU, but got the dreaded Controller Unlocker: Timed Out error during...

I tried disconnecting the battery for a few seconds and reconnecting. Truck still won't start. Does this mean the ECU is really bricked?

My device drivers are up to date. I also pulled all three...

Which fuse was it??

Did you ever get this resolved??

I?m having the same issue right now on a 2004 Vortec 5.3

Pulling the radio amp fuse and unchecking Use High Speed got the read completed, but got the infamous...

Trying to complete an e-fan swap on a 2004 Avalanche 5.3, using Windows 10 and a MPVI3

I was finally able to successfully read the ECU by removing the radio amp fuse and unchecking Use High Speed....

Hey I don?t mean to hijack the thread, but having same issue?

I?m using Windows 10, and wondering if the MPVI3 requires special secret drivers too?

Or can I just download them from online...

Having same issue. It also turns on my Check Engine Light (U107) Lost Communication to Throttle Actuator.

You?d figure for the amount of money it costs, this system would be flowing smoothly.

Swapping out the clutch fans on a 2004 Avalanche (Vortec 5.3)

Wondering what the stock temps are for fan on/off?

I'm pretty sure I've seen people just pull out whatever wire was in pin 33, and plugged in the one from the fan to make it work.

If I unlock my 2004 Avalanche with 6 Universal Credits, will my MPVI3 be able to tune any Avalanche from any year as well without any additional need for credits?

I've added a MPVI3 to My Devices, but when I try to added GM credits, I received an error message: MPVI Credits cannot be added to the cart until the serial number is selected or specified in your...

The newer modules are needed to tune newer cars, but also work on older cars.

If you don't plan on tuning newer cars, you should be able to tune your Corvette even with the first MPVI.

My Avalanche with single inlet/dual outlet Flowmaster muffler, burbles and crackles on deacceleration, but only on the freeway at higher RPM... on a STOCK tune.

Crackle and popping otherwise is...

Is there a way to verify the serial number on a used unit before purchasing to assure that it has been deleted from the previous account, and is ready to register on a new one?

Ok gotcha, ya if I end up tuning a newer truck, I could justify buying a new MPVI3, but I mainly want to swap in electric fans from the facelift NBS trucks into my older ones that came with clutch...

Okay thanks for these insights.

So, will the first MPVI work with these older NBS trucks too?