[wreckman]

Hi, new to using ISTA/D (4.11 I think..) on my E93 2012. I have a (cheap) k+dcan cable that looks like every other such cable (this one was called "Goldplay" from Amazon). I have configured the COM-port for the cable with 1 ms latency and I used the latest FTDI drivers and all is on Windows 10 on a ThinkPad.

ISTA properly reads out the vehicle information and communicates properly with all modules in the tree (green) except 3: CA, PDC and DSC (which turns red). For these, it says "No communication" (not a stored fault code; just ISTAs result).

Now I know that the PDC works and the DSC, well, the car drives properly and you can switch it on/off etc, I'm pretty sure if the DSC was incommunicado for real, the car would complain loudly. The CA (Comfort Access) module was the module I really wanted to reset, as I'm replacing a door handle, so I can't vouch for that.

What do you think, can a bad cable do this? Or a bad ISTA/D version? Can there be an issue if the ISTA/D version is older than what the car might be upgraded with (so some modules might have "too new" firmware and thus can't be checked?).

[Welcome to NBA Jam]

The key needs to be in ignition for them to be queried (double-press start)

[wreckman]

Originally Posted by Welcome to NBA Jam

The key needs to be in ignition for them to be queried (double-press start)

Hmm thanks for the tip, I did try setting it to ignition (without pushing down the brake) but then the car goes BOING BOING BOING with a triangle with an exclamation mark inside it repeatedly until I push the start-button again.. (or remove the dcan cable).

I just assumed the car tries to show that "you can forget starting the engine while a diagnosis cable is inserted".

Do you know if this behaviour is normal?

[Welcome to NBA Jam]

Yep that's normal. For some reason when DSC is queried, it will cause the module to temporarily cause errors on the dashboard. They'll go away on their own. I think it's just a function of how the module is programmed. Kinda funky.

[wreckman]

Originally Posted by Welcome to NBA Jam

Yep that's normal. For some reason when DSC is queried, it will cause the module to temporarily cause errors on the dashboard. They'll go away on their own. I think it's just a function of how the module is programmed. Kinda funky.

Thanks, eventually the modules came up green while probed with ignition on. Interestingly, the BOING BOING (!) stuff didn't appear this last time I tried. But it definitely came up the previous couple of times I tried. Good to know it can be ignored though