VR6Will 0 Posted September 26, 2006 Currently converting my 2.9 to obd2, however, I'm missing the part of loom for the diagnostics plug, I know 1 wire is from the transponder box (grey wire) I assume there will be a 12v and earth, is there any other wires? I know my OBD1 had 2 wires plus a 12v and earth Cheers Will Quote Share this post Link to post Share on other sites
CorradoVR6-Turbo 0 Posted September 27, 2006 When you say transponder box,do you mean ECU? If yes it will be just as you said mate,the other wire on the plug will be for the ABS. Quote Share this post Link to post Share on other sites
VR6Will 0 Posted September 27, 2006 no, not to the ecu, there is a grey wire coming out of the transponder box, i was advised this was to the diagnostics plug 2 plugs on the transponder box... first plug is to the ring on the ignition barrel 2nd plug: black wire is ignition live 2 brown wires are earth grey/white goes to engine loom grey wire goes diagnostic plug Quote Share this post Link to post Share on other sites
Trig 0 Posted September 27, 2006 I think he means this little beastie... Quote Share this post Link to post Share on other sites
VR6Will 0 Posted September 27, 2006 I think he means this little beasite... thats it...there is a single grey wire coming out of that box, which i believe goes to the diagnostics part of loom, but are there any other wires say from the ecu? Quote Share this post Link to post Share on other sites
