DTC and Readiness Monitor - 2004 Trucks

[redneckvtek]

Hello,

I have a 2004 Silverado with a Lm7 that I am trying to use my tuner to check DTC codes and Readiness monitors.

Unfortunately, the DTC screen never "connects" and I never see the same picture as in the help file. The gray box just stays blank and none of the readiness monitors have any comments after them.

I thought it was maybe something I did when I was changing the DTC codes in the tune ( i turned off the rear o2 sensors), so I checked on another truck I have. This one is a 2004 Suburban with a L59. The same occurs with it. I have not changed anything on the suburban, it is still on factory tune and the PCM is not unlocked on my tuner.

I am "connected" and i have tried to check the codes, and nothing. I then start "scanning" and check again, and nothing. I can use the VCM controls to turn the CEL on and manipulate the vehicle fine, as well as I can take logs of all the normal functions. The only thing that appears wrong is the DTC function.

What am I doing wrong? Is it something with 2004 trucks that prevent the DTC from working properly?

I attached a picture of what I see.

Sorry if this has been asked before or is easy, I tried reading the help file and searching for DTC related problems on the forums here, and had no luck.

-Chris

[planethax]

I do not believe that it has been enabled in the software yet.

[Bill@HPTuners]

email support with your serial number as we're going to be troubleshooting this oddball bug in a few weeks. I'll add you to the list of those having this issue which appears to have only affecting a small handful of users to date so its been close to impossible to troubleshoot.

[TMilkman]

Same problem here after upgrading to 2.24

[JoeCiv]

same issue here. 2005 GTO. been in contact with support.

[turboskeeter10]

I had the same issue today with 2.24. Had to go back to 2.22 to check DTC's.

[kevin87turbot]

I have the same problem since upgrading to 2.23.873.

[NewJack]

Same problem here

[ProchargedLSX]

Same problem, v2.24.75 and E40 PCM 2006 Trailblazer SS 6.0L

[rnl35thss]

Same here Bill, should I email support about this with serial number like stated above, or just wait? 00 silverado and 03 suburban . Whatever version is current, updated last night with hopes of a fix.

[Stevo]

Im having a few issues in Australia also.

[rnl35thss]

I don't know why, but mine started working tonight. If I figure out if it was something I did, I'll let you guys know.

[Bill@HPTuners]

Try 2.24.528, we fixed a bug where pc's that haven't been restarted in 25 or more days would not poll for dtc's.