Autosport Labs

Posted: **Wed Jul 19, 2017 5:23 pm**

I have an RCP3 with v2.11.0 firmware and the OBDII/CAN adapter for my 2012 Porsche Cayman R.

I'm not seeing any CAN or OBD data, and the CAN light on the unit is not lit. I turned on OBD channels, CAN bus, and CAN mapping; all other settings are default.

So far, I've cycled through CAN bus speeds without success. I'm trying to use the CAN logger script to collect data and reverse-engineer the mappings.

Any suggestions on what to try next?

Thanks!

Posted: **Wed Jul 19, 2017 8:35 pm**

Device log is below. Interestingly, it logs the same messages even if I turn off OBDII & CAN functions.

[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getLogfile":null}
[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getStatus":null}
[CAN device] timeout rx CAN msg
[CAN device] timeout rx CAN msg
[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getLogfile":null}
[USB] Received CMD: {"getStatus":null}
[CAN device] timeout rx CAN msg
[CAN device] timeout rx CAN msg
[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getLogfile":null}
[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getStatus":null}
[CAN device] timeout rx CAN msg
[CAN device] timeout rx CAN msg
[USB] Received CMD: {"getLogfile":null}

Posted: **Wed Jul 19, 2017 9:01 pm**

Waazzzup Jay!! You took the plunge!! Then immediately hit a wall!

All in good fun!

There are two can bus on the RCP3. You might wanna try changing the bus. To do this, change the following in the canbus logger script:

canBus = 1 or 2

https://wiki.autosportlabs.com/CAN_Bus_logger

Not sure this is completely your issue, but worth a shot. Don't forget to cycle through the baud rates on each bus.

Code: Select all

-- Log messages from CAN bus
-- be sure to set the correct baud rate in the CAN settings

--------------------------------------------------
-- change this to 0 for CAN bus 1, or 1 for CAN bus 2
canBus = 0
--------------------------------------------------

--this function drains all pending CAN messages
--and outputs messages to the log
function outputCAN&#40;&#41;
 repeat 
  id, ext, data = rxCAN&#40;canBus, 1000&#41;
  if id ~= nil then
   print&#40;'&#91;' ..id ..'&#93;&#58; '&#41;
   for i = 1,#data do
    print&#40;data&#91;i&#93; ..', '&#41;
   end
   println&#40;''&#41;
  end
 until id == nil
    println&#40;'Timeout&#58; no CAN data'&#41;
end
 
function onTick&#40;&#41;
 outputCAN&#40;&#41;
end

setTickRate&#40;30&#41;

Posted: **Fri Jul 21, 2017 1:40 pm**

Thanks!

Oddly enough, the CAN LED lit up immediately when I plugged in the OBDII cable. No changes to the config....

I managed to capture some CAN data, so I'll open a thread in the CAN forum as I work through decoding it.

OT: where did you end up mounting your RCP?

Posted: **Sat Jul 22, 2017 2:16 am**

I put it under my driver seat. I had to tap power and also add an oil pressure sender, that side of the car made the most sense. Center of the car is rather difficult with stock interior. I also didn't drill the floor pan. Instead I poke through the foam in the carpet and secured the datalogger tightly.

Posted: **Tue Aug 01, 2017 1:33 am**

Quick update:

Orange CAN data indicator went off again today while collecting data and no combination of settings would re establish the connection.

I plugged in my Durametric cable and it couldn't connect either. Turning the car off / waiting a few minutes/ back on didn't do the trick, so it must have a timeout window.

More research needed....

Posted: **Tue Aug 01, 2017 4:53 pm**

Durametric cable works fine now (as does a bluetooth OBDII dongle), but the RCP3 does not see CAN data through the OBDII cable.

Any suggestions on troubleshooting? Any way to get more detailed information from the RCP3?

Autosport Labs

No OBDII / CAN data

No OBDII / CAN data