Originally Posted by clinebarger
Originally Posted by Trav
Great work! Jobs like that can really go on your nerves but they have to get done. I am facing a similar horror trip with a Saab that someone hacked the wiring because they didn't have a Tech2 and started cutting wires trying get things to work that had been turned off in the system. Its going to be a huge PITA.
On these cars I use a Tech2 to change the VIN in the ECM to install parts that have been previously used in another vehicle, you know the divorce and marry parts to this ecm by VIN or they are not recognized thing, would the Tech2 change the VIN in this truck also? Do these US GM vehicles require security access to change some settings also?
Nope....Got to use SPS. I don't use my Tech2 as a passthrough (J2534) much anymore either after "bricking" a PCM with it. So I bought a MDI for all GM SPS programming. Mine being an original Hewlett Packard made one might have something to do with it?
Another oddity is.....You can't unlock radios on GMT800/GMT900 trucks with a Tech2, got to use SPS. But you can on all the passenger cars
IIRC....Isn't Saab/Opel a whole other system & uses it's own proprietary card software?
I can change the VIN with HP-Tuners, Though I didn't on this one because GMT800's can easily be stolen with a screwdriver anyway.
Yes SAAB/Opel use a different proprietary card, I have the SAAB and Saturn/Opel in the Tech 2 with CANDI but I rarely use the GM card, I have MDI and TIS2 also. IIRC wasn't HP the original Tech2 or was it Vertronix?
Strange the radio cant be unlocked in the trucks but can be in the cars with the Tech2.
For the pre Subaru SAAB cars the Tech 2 is the best tool to use on them, so far I have not found another tool that can do some of the modules eg CIM/ISM as easily or at all.