why wont hp tuners read ECM?
why wont hp tuners read ECM? i bought hp tuners from someone on here a while ago and i just tried hooking it up to my ecm in my turbo s10 and when you go to scan the ecm it says "no voltage detected". i checked the voltage and its getting volts and the ground is good too. i tried this on two different computers and it still wont read. can the interface be the problem? when i plug the interface into the computer it reads the serial # and the computer detects the device so im not sure what the problem could be.
Staging Lane
Joined: Nov 2007
Posts: 67
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i bought hp tuners from someone on here a while ago and i just tried hooking it up to my ecm in my turbo s10 and when you go to scan the ecm it says "no voltage detected". i checked the voltage and its getting volts and the ground is good too. i tried this on two different computers and it still wont read. can the interface be the problem? when i plug the interface into the computer it reads the serial # and the computer detects the device so im not sure what the problem could be.
ground is indeed good. I have a test light that you ground one end and put power to the other and the probe lights up. That's what I did to prove power so i'm sure receiving 12v
Every time I had this error was because pin 16 had no power.
Hook your HPTuners interface to the OBD2 port only, don't hook the USB cable.
If the green led doesn't light, you need to check fuses and power to OBD2 pin 16
Hook your HPTuners interface to the OBD2 port only, don't hook the USB cable.
If the green led doesn't light, you need to check fuses and power to OBD2 pin 16
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Key has to be in the on position to connect. Also, I have found that it won't connect if I have the scanner open or connected. Maybe it's a loose connection between the laptop and the obdII
This error means either:
a. your drivers aren't installed
b. you have a faulty usb cable
c. you have a faulty interface
Start by installing the drivers and if that doesn't work try a new usb cable if that doesn't work contact support.
This issue has nothing to do with the obd2 port of the vehicle in 99.9% of cases.
a. your drivers aren't installed
b. you have a faulty usb cable
c. you have a faulty interface
Start by installing the drivers and if that doesn't work try a new usb cable if that doesn't work contact support.
This issue has nothing to do with the obd2 port of the vehicle in 99.9% of cases.
Ok the scanner was open before I plugged the HP tuners in so that could possibly be the problem. I only tried key in accessories position for a little but but now I know for sure. How do you know if drivers are installed?
ok hooked it up to my truck just a little bit ago. turned ignition on, plugged interfface in, opened hp tuners, and then tried to read the ecm; nothing... and when i plug the interface into the computer the interface turns on so i know the cable is good and when i plug the interface into just the truck it also turns on so the cables work. but i dont recall installing any drivers but when i plug in the interface to the computer it doesnt prompt me for any drivers like the directions tell me.
