[Ovmsdev] Trying to get a new car in, CRTD, CANbus and all
leres at xse.com
Tue Jul 16 00:52:37 HKT 2019
I don't know anything about VW network buses but with GM there are
usually two buses (OBD-II up through 2014 anyway). All models have a
high speed can on pins 14 and 6 of the diagnostic connector. Newer
models have a low speed, single wire can bus on pin 1. Older use
J1850/Class 2 PWM on pin 2. The high speed bus has mostly engine, brake
and related. Doors, hvac, infotainment are on the low speed bus. Single
wire can and J1850 appear to be unique to GM.
I would start by figuring out where the other buses are in your new car.
More information about the OvmsDev