▲ 2 r/Taycan
tCAN-Pro on Taycan J1.1 – “BMS Read Failed / La séquence ne contient aucun élément” with ENET cable
Hi everyone,
I’m trying to read the battery/BMS data on my Porsche Taycan J1.1 (gts 2023) using tCAN-Pro with an ENET cable.
The ENET connection looks fine (green indicator), but when I try to access the battery/BMS screen, I get this error:
“BMS Read Failed”
“Error: La séquence ne contient aucun élément.”
So the connection seems OK, but the BMS read itself fails.
A few questions:
Has anyone here had the same error in tCAN-Pro?
Is this usually a software/version issue, or can it mean a real communication problem with the BMS?
Do I need to do a full Port Scan first before reading the BMS?
Does the car need to be in a specific state (awake, ignition on, not charging, etc.)?
u/OniHanz — 22 hours ago