Were to connect to Comfort-CAN Bus?
 

Hi All

I was searching for some time but did not find a wire or connector where I can hoock up to the Comfort-CAN bus of the RX-8.

I found the Motor-CAN with 500kb/s on Pin 6 and 14 on the OBDII-Diagnostics-Connector under the steering wheel. (http://www.obd-2.de/tech_conn.html)

But where is the Comfort-CAN? Should be about 100kb/s and somewhere connected to the radio-unit or the controller for all the electric window switches.

Regarding the garage-handbook somewhere on the passengers side behind the plastic covering under the mounting point of the door there should be a controller for various switches which is connected to a CAN bus. But I don't know where this controller is and what kind of CAN it is, could be again the Motor-CAN.

I'm sure there has to be a Comfort-CAN in the RX-8 somewhere :Eyecrazy:


Thanks for your help!
Regards, Chris


CAN adapter I am using: http://www.canhack.de/viewtopic.php?t=24

for the AC? that module is under the driverside dash by you right knee when sitting. in a left hand drive car;)

Yes, I think the Comfort-CAN is connected to the AC, the Radio-Unit and some switch-to-can interface modules.

I'll take a look on that module by my knee :-) Hope I figure out how to remove that plastic cover.

No such buss on the RX-8.
Everything that is on a serial buss is on the CAN/OBD-II DLC. (ABS-HU/CM, EPS, SAS, etc.)
The A/C and ICE are all pretty old-school, infact.

No Comfort-CAN?? Nooo!! :-(

I found many messages on the Motor-CAN from Handbrake, Speed, Motorvalues and ABS.

But how are the switches for the electric window and the lights connected? Are there separate cables for each switch? No CAN-Bus?

How are the steering-wheel switches for the radio controll connected to the head-unit?

Windows and lights are hard-wired.
Radio buttons, too.

This isn't a new BMW were talking about, it is a mid-price Japanese car designed at the end of the 1990's.

Grab the electrical section of the shop manual from my site and you'll see.

Hum... But the very cheap and 3 year older Fiat Stilo has that Comfort-CAN. There you can get the status of all buttons, all lights, handbrake and gears, send your own text to the radio display and dashboard and so on...

Also nearly every other car has its switches connected by a CAN...

:-(

Well, not this one. Complain to Mazda.

However, I prefer that everythig is wired seperately. It is much easier to hack and modify that way.