Dont always trust your tool

Edwin Mobile Technician Charleston, South Carolina Posted   Latest   Edited  
Demonstration
Driveability
P0843 - Transmission Fluid Pressure Sensor/Switch "A" Circuit High

Hey guys it's the mobile guy I got this issue with an Allison Transmission and I want to show you these screenshots of when you shouldn't trust your diagnostic tool if you guys have the opportunity when in doubt and you have another tool you can try your other tool and see if that tool that you originally were using is lying to you. As you can see in these screenshots that was the case that I had. The first screenshot showed that I had a diagnostic trouble code stored but would not allow me to clear it the second screenshot shows the dash pad code scan where there wasn't any code stored the last screenshot is with the factory scan tool the Allison doc also showed that there was no stored diagnostic trouble code the first screenshot the scan tool would not clear that code it stayed in history

Also guys TST big event coming up March 30th 2019 if you haven't signed up please do so now we're going to have a lot of great Raffles three great guest speakers and some fabulous networking I hope to see you there as I'll be there myself. Go to tstseminars​.​org for more info.

+4
Michael Diagnostician
Atlanta, Georgia
Michael
 

I am already signed up for TST!

0 Ð Bounty Awarded
Matthew Mobile Technician
Bartlett, Illinois
Matthew
 

That is an awfully expensive tool too, wasn't like you were using the Autel... Just more evidence that OE is the only way to go.

0 Ð Bounty Awarded
Edwin Mobile Technician
Charleston, South Carolina
Edwin
 

You got that right Matthew!

0 Ð Bounty Awarded
Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony
   

Hi Edwin: I don't believe that code means what you think that it means. "STO"ria is a truncated translation of the Italian word for "history". The "code" will remain as long as the TXTs is connected. If you close your connection, disconnect the TXTs and then reconnect, you should see that it is now gone. See if this helps. Red "ATT"enzione means Active Code. Amber "MEM" codes are Inactive…

+1 Ð Bounty Awarded
Michael Diagnostician
Champaign, Illinois
Michael
 

Hi Edwin, Guido is right, if its green that means in Texa it is cleared. Amber is history and red is active. That is kind of strange though. That has not happened to me. Did you try reconnecting and making sure you selected the right Trans? Give Tyler a call and tell him your issue. Diesel laptops is real good about getting issues resolved.

0 Ð Bounty Awarded
Edwin Mobile Technician
Charleston, South Carolina
Edwin
 

Michael and Anthony. When I first hooked up to this vehicle with that tool that code was in there and it was in green I tried to clear the code and it would not clear I disconnected the tool and reconnected the tool and it stayed green then I went to my dash display and my Allison doc program and the code was not there I think it was definitely a texa tool issue more speclifically a software

0 Ð Bounty Awarded
Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony
 

Hi Edwin: It should extinguish, as I mentioned. If it didn't, you should send a log file (bug report) to Texa. (Don't use capital letters in your e-mail address.) HTH, Guido

0 Ð Bounty Awarded
Michael Diagnostician
Champaign, Illinois
Michael
 

Oh ok. I would contact Tyler then. Sorry you had an issue. I have had a few issues myself but they are trying to get them fixed. For the most part though the Texa has worked pretty good on Cummins. Still trying to get Texa to fix the freeze frame for the mid range engines. They don't give freeze frame access.

0 Ð Bounty Awarded
Jose Engineer
Doral, Florida
Jose
 

TEXA descriptions are, in general, really poor. I have also detected unknown fault codes in Allison WTEC III system. That does not involve OE tools is the only way to go, I was able to diagnose it correctly thanks to Jaltest diagnostic tool.

0 Ð Bounty Awarded
Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony
 

Hi Jose: Did you double click on the code to view the information? Guido

0 Ð Bounty Awarded
Jose Engineer
Doral, Florida
Jose
 

I guess so but the information displayed I think was just the fault code numbers, not an accurate description.

0 Ð Bounty Awarded