Testimony as to why FACTORY diagnostics are inevitable!
An Import shop in Castle Rock, CO had this car. They ended up sending this job away.
TCM faults somehow led VCDS, only the most widely respected VW-AUDI diagnostic suite in the WORLD, to fail communication to this module.
I wonder now if the tech tried clearing the codes and rereading the TCM if it would have communicated with the VCDS system by Ross-Tech.
You would think that it should have but it would not.
Here is the sequence of events.
Customer complaint is sporadic crank, no start.
VCDS quick test, fails communication with the TCM, no other system advice.
I connect the VAS19 going through the Universal scanner from Taiwan.
We choose guided fault finding from the opening screen and it connects to all modules and fills a list of faults with descriptions.
Number one on the list was a Control Area Network fault, just after that is a button referencing the relevant CAN wiring diagram.
No searching, no distractions from going to another PC searching through information systems like All DATA or Mitchell On Demand.
The factory information is right there.
We work our way down the list and see that the factory software is able to tell us more.
The shift indicator position switch reported a possible short to ground and sporadic communication with the TCM. Probably a bad switch or faulty connections in that circuit.
Call or e-mail us for guidance in installing these OE diagnostic systems, don’t miss out on a tranny R&R simply because you cannot see the relevant data!