Fault

[GMLSI]

Hi guys,

This is my first post. I have just finished buiding a HZ with an LS1 in it and on Friday night I flashed in a tune from my brothers car to use in it and the battery voltage become very low as the car has been sitting for a while and it stopped the flash. I put the battery on charge and then tried to reflash and it now comes up with an error saying Programming Voltage did not turn on.
I don't know what this means. Can any one help?
Cheers,
Ryan

[ntae]

Ross / Paul could you please explain the error (Programming Voltage did not turn on.)

[ntae]

Been told problem fixed was the harness

[GMLSI]

I ended up plugging the computer into my other car and was able to flash the tune in. I will need to look at the wiring on the OBD2 connector.

Cheers,
Ryan

[GMLSI]

I know that this is an old post however I am still having trouble when flashing in a tune. I can log data and remove the tune that is in the computer but when I go to reflash it I get an error saying "Programming Voltage did not turn on."

Any help would be appreciated.

Cheers,
Ryan

[joecar]

I pm'd Tech Support.

[GMLSI]

Thanks JOECAR.
Last night a mate and I checked all power and earths on the loom and they are all ok. I am guessing that it will only be something simple.

Ryan

[GMPX]

I have seen this error on Diesel ECM's when the IGN is not turned on all the way (meaning, it is not fully powered), so I can only assume you still must have a harness problem.
Is there any chance you can find a 'real' Commodore to plug this in to and then retry?

Cheers,
Ross

[GMLSI]

Hi Ross,

Thanks for your reply.
I can put the PCM into my VY and flash the tune in. It is just a pain taking the PCM out every time I want to change the tune. I will have another look at the power wires to see if there is one that I missed.
It is just funny that I can take the tune out and take a log.

Cheers,
Ryan

[Blacky]

Reading and scanning can operate with a voltage supply of less than 12 volts. I have tested it down to 9 volts and it will still works. Erasing and progamming the flash memory chip requires 12 volts. The flash chip in the PCM itself checks the voltage prior to programming to ensure that the voltage is correct to prevent problems during reprogramming.

Regards
Paul