RM-AB
Junior Member
Hi all, new to the forum and have a question hoping someone can help me with. Did quite a bit looking around on the net about obd protocols, pinouts, etc but cannot find the answers i'm looking for, maybe someone can help.
I'm trying to install a heads up display/obd powered led screen display in my '05 to display some live data. I've made sure the units i have tried all "supposedly" support all the various obdii protocols, so they should work, but i cannot get a single one to communicate through the obd plug. my diagnostic scanner (innova 3100c) seems to communicate fine with the obd plug to pull error codes, but none of the displays/hud's i've tried show any more than voltage. i can't get any readings on rpm, speed, coolant temp etc, which i think the 05 should provide to the obd port. I know the displays/HUDs work, i've tried them in various other cars and they display all info, except nothing is displayed when using in the RAM. Can anyone shed any light on this ? (when searching online for anything related to 05 obd it seems a huge black hole, for 02-04 and 06-08 i can find various info, but what is the deal with 05?) thanks for any help anyone can send my way !
I'm trying to install a heads up display/obd powered led screen display in my '05 to display some live data. I've made sure the units i have tried all "supposedly" support all the various obdii protocols, so they should work, but i cannot get a single one to communicate through the obd plug. my diagnostic scanner (innova 3100c) seems to communicate fine with the obd plug to pull error codes, but none of the displays/hud's i've tried show any more than voltage. i can't get any readings on rpm, speed, coolant temp etc, which i think the 05 should provide to the obd port. I know the displays/HUDs work, i've tried them in various other cars and they display all info, except nothing is displayed when using in the RAM. Can anyone shed any light on this ? (when searching online for anything related to 05 obd it seems a huge black hole, for 02-04 and 06-08 i can find various info, but what is the deal with 05?) thanks for any help anyone can send my way !