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Okay, I tried diagnosing the error using DIS. I didn't get a chance to do a full inverstigation as I didn't have a battery charger on hand, so it was a pretty short diagnosis. Had a few errors come up:
DSC - 5F39 DSC: transfer case internal - fault not currently present
All wheel drive system B3450_8P_VTG
VTG- 53A0 VTG: No coding or faulty coding - implausible signal - fault currently present - fault would not cause a warning light
Control unit, self test B2710_VTG
When I began diagnosis of DSC, it notes that
"There may be a sporadic fault in the VTG. Continue troubleshooting VTG
The cause of this fault is not attributed to DSC control unit
Clear DSC fault memory"
It also noted that "This error may also be entered in there is/was an undervolt in the vehicle".
I didn't clear fault at this time because battery getting low. But I went next to the VTG. when I went to that module (VTG gearbox control) it said:
53A0 VTG: No coding or faulty coding
implausible signal
I didn't go further due to battery. But, it looks like i have to clear DSC fault memory first. Then maybe take it to a dealer to have them re-code VTG. I can provide screenshots, but not sure how to do that or re-size them, etc. Also, I did not have the vehicle running so not sure if that would make a difference if errors. I do note that everytime I start car, the brake, dsc, and 4x4 erros come up everytime.
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