- Nov 20, 2011
- 545
OK, so there's surprisingly little information about this, so I thought I'd start a thread about it... This isn't really an engine mod or tune, and it isn't a transmission mod, though it monitors both... It's not an OEM issue, so it doesn't go there... Because of the lack of a "general" 5.3L section, I'm putting this here, and if the powers that be want to move it, so be it...
This thread is for the working codes for '06 - '08 5.3L SWB Trailvoys, with the CAN system (The TXD/RXF can be slightly different than the standard OBDII Trailvoys)...
These are the same as the "GM CANSF" on the sheet, here: http://www.scangauge.com/support/pdfs/XGAUGE.pdf
- Knock Retard
- Engine Oil Temperature
These are different than the "GM CANSF" on the sheet:
- Transmission Temperature: A guy with an '08 said he was just able to use the "Allison" codes, but that did not work for me... I called, and apparently the 4th bit of the TXD is the location bit, where the computer stores the value in memory... If the regular code doesn't work, you can change that 4th bit (it's a "0" on the code sheet linked to above) from 0 to F, and it could be in one of those... The TXD that worked for me was: 07E2221940 (without the "01" at the end)... The rest of the values were the standard values from the "Transmission Fluid Temperature (ex Allison)"
As I get more time to mess with this, I'll post up codes that work... If any of you who have the same CAN 5.3L vehicles can add your own, that would be great... I'm specifically still looking for:
1. OLM
2. TCC Clutch Slip %
3. TCC Lockup on/off/PWM
4. Fan speed, commanded
5. Fan speed, actual
Thanks,
Mike
This thread is for the working codes for '06 - '08 5.3L SWB Trailvoys, with the CAN system (The TXD/RXF can be slightly different than the standard OBDII Trailvoys)...
These are the same as the "GM CANSF" on the sheet, here: http://www.scangauge.com/support/pdfs/XGAUGE.pdf
- Knock Retard
- Engine Oil Temperature
These are different than the "GM CANSF" on the sheet:
- Transmission Temperature: A guy with an '08 said he was just able to use the "Allison" codes, but that did not work for me... I called, and apparently the 4th bit of the TXD is the location bit, where the computer stores the value in memory... If the regular code doesn't work, you can change that 4th bit (it's a "0" on the code sheet linked to above) from 0 to F, and it could be in one of those... The TXD that worked for me was: 07E2221940 (without the "01" at the end)... The rest of the values were the standard values from the "Transmission Fluid Temperature (ex Allison)"
As I get more time to mess with this, I'll post up codes that work... If any of you who have the same CAN 5.3L vehicles can add your own, that would be great... I'm specifically still looking for:
1. OLM
2. TCC Clutch Slip %
3. TCC Lockup on/off/PWM
4. Fan speed, commanded
5. Fan speed, actual
Thanks,
Mike