Uds error

[Cookie1992]

Hi there I have a barra swaped patrol I can connect to forscan through the pcm but everytime I try to read the pcm with pcmtec it comes up with UDS error all of my software is upto date on my laptop it's been tuned before to allow for the conversion 

[Roland@pcmtec]

What vehicle is the engine and pcm from? Is it an ecoboost? 

[Cookie1992]

Hay Roland its a 2004 xr6 turbo ba btr auto pcm in a y61 patrol its previously been tuned with hp tuner and it dose not have a tuners lock on it mate 

[Roland@pcmtec]

Have you successfully used this cable to flash a PCM previously? What is the cable and was it purchased genuine?

Non genuine cables or cables without FEPS support can give this error.

Canbus wiring issues to the OBD port can also cause issues like this, eg the FEPS (OBD pin 13) not being wired up.

[Cookie1992]

I use a genuine tactrix 2.0 cable and no iv never used it on this vehicle mate it has been previously tuned with hp tuner by someone else iv spoken to this person they said that they have not put a tuners lock on it all so it's a custom harness for the turbo barra to patrol and yes iv used my cable on many other vehicles with out an issue just never used it with a custom harness in a patrol conversion 

Edited November 1, 2021 by Cookie1992

[Roland@pcmtec]

Tuner lock doesn't give that error. Sounds like you may have a wiring or cable issue.

[Cookie1992]

Thanks Roland il look into it further and keep you updated