Tech 2...

[swathdiver]

Finally got somewhere! The original OBDII adapter must be bad. New one from Amazon allowed me to see everything and test and make changes to truck. I learned that when I got the message that there was no communication etc. etc. it was because those modules are not installed, such as electronic suspension, power running boards. Saw an option for an auxiliary BCM which mine does not have too.

While there are no DTCs for the BOSE Amplifier, there is no communication with it. I cannot test the speakers through the amp but can through the radio setting though only 4 and not 9. So it seems my amp is dead or disconnected.

The motor and transmission are perfect, no misfires, nothing amiss. Thank the Lord! Couple codes like one for cell phone antenna but I reset them and they have not come back, the in car phone works.

Appreciate your help and if you have anything to add or discuss, such is always appreciated!

 

[swathdiver]

Well, when you get a chance, can you see if you have an auxillary body control module installed and functioning? Same for the amp? Thanks!

I'm beginning to wonder if my BCM was not reprogrammed properly.

 

[sk1dm4rk]

I'll take a look.

As for the BCM programming. You can now do it yourself, if you find that is the issue.

 

[swathdiver]

Thanks. It seems I have a "dumb amp" and not the one that functions as a module with the Y91 RPO code. What do you have?

My truck has the U3U Navigation Radio and the UQA Speaker System.

 

[sk1dm4rk]

I have Y91 and UQS.

Here's some info I found a while back that you may find useful.

http://www.chevyavalanchefanclub.com/cafcna/index.php?topic=65125.0

 

[swathdiver]

It is. Your RPOs reveal that your amp is the fancier one, able to be read and tested by your Tech2. Did I remember right, that you have an Escalade?

 

[sk1dm4rk]

That is correct.

 

[mals]

I bought from this seller: https://www.aliexpress.com/store/219113?spm=2114.12010108.0.0.ZzOmTi

My main reasoning was the amount of time they had been in business and the cost of the unit. Since this is a crapshoot, I didn't want to have much on the line to lose.

It looks like the product link above isn't working any more. A search of their site lead me to this: https://www.aliexpress.com/item/201...PEL-SAAB-ISUZU-SUZUKI-HOLDEN/32826097470.html

Does that look like the same unit you purchased, just with the GM software updated to the most recent release? Have you had any issues (other than the bad cable) with the unit? Have you tried to use it with the GM TIS login/subscription service for programing projects?

 

[swathdiver]

It looks like the product link above isn't working any more. A search of their site lead me to this: https://www.aliexpress.com/item/201...PEL-SAAB-ISUZU-SUZUKI-HOLDEN/32826097470.html

Does that look like the same unit you purchased, just with the GM software updated to the most recent release? Have you had any issues (other than the bad cable) with the unit? Have you tried to use it with the GM TIS login/subscription service for programing projects?

The first link from post #4 is still active and less expensive:
https://www.aliexpress.com/store/product/Auto-Diagnostic-tool-gm-Tech-II-GM-Tech-2-Pro-Kits-for-GM-SAAB-OPEL-SUZUKI/1756517_32313222529.html?aff_platform=aaf&aff_trace_key=fb49da75de9346a395c5e03931b63349-1497816460719-07064-VnYZvQVf&cpt=1497816460719&dp=77f60d42dd89bf73c99cfa1e86eca50a&af=240682&cv=47843&afref=http%3A%2F%2Fwww.tahoeyukonforum.com%2Fthreads%2Ftech-2.93908%2F&mall_affr=pr3&aff_platform=aaf&cpt=1509715808066&sk=VnYZvQVf&aff_trace_key=27a9371d84674e23bcbf58545748fa64-1509715808066-02695-VnYZvQVf&terminal_id=c7a3c585127d4e68b57381f9471e0dfd

That is the latest Tech2 software, 33.004 for GM. This was the last release and works for up to 2013. Not sure if the 2014 GMT900s would work with this. After this GM went to the MDI with the laptop. I purchased the kit that came with the hard case, glad I did to keep things organized and protected!

It wasn't a bad cable, just the OBD II adapter. I bought one from Amazon and they sent a replacement. No issues at all, very happy with it, already paid for itself several times over!

 

[drowssap]

I have been wanting one of these for SOOOOO long! Just ordered it!