Damo Posted November 19, 2017 Report Share Posted November 19, 2017 Hey guys, Finished up the wiring on the Thunder today, came to that time to power it all up anddd nothing. No LED on the ECU or anything. I tried running just power and ground to the ECU via pins A5, A25 and A34, and still nothing? I assume this is the bare minimum to get it to power up, if anyone knows any differently, please let me know Any help would be great, thanks! Quote Link to comment Share on other sites More sharing options...
amg Posted November 19, 2017 Report Share Posted November 19, 2017 How are you wiring the Thunder - with power hold or without? Using one of the scenarios as per the help file? Or just hooking up +12V on A5 and ground on A34(=A25)? When I first connected my Thunder it was via A5 & A34 and a USB cable so I could connect to the PCLink and unlock the ECU. In the car I've wired it up first without and then with the hold power function. ECU powered up fine in any of these scenarios. Quote Link to comment Share on other sites More sharing options...
Damo Posted November 19, 2017 Author Report Share Posted November 19, 2017 At the moment I'm trying bare bones wiring just to try and get any ecu activity. So I'm supplying 12v to A5 and ground to A25 and A34 (not sure if both are required but I thought better than not connected). Literally just by battery positive and negative to these wires and nothing at all. The fact that yours worked by just A5 and A34 kind of worries me. I highly doubt it, but I cant help but wonder if something is wrong with my ecu internally. Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted November 19, 2017 Report Share Posted November 19, 2017 Sounds like the ecu has hold function active from new. Try fused power to C2. Ground to c34. Quote Link to comment Share on other sites More sharing options...
Damo Posted November 20, 2017 Author Report Share Posted November 20, 2017 So C2 as in Ign Switch - and then the C34 ground pin? At the same time as A5 and A34 you think? Thanks guys Quote Link to comment Share on other sites More sharing options...
Damo Posted November 20, 2017 Author Report Share Posted November 20, 2017 I just tried the above, no luck again, no sign of ecu activity at all. This really has me stumped. Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 20, 2017 Report Share Posted November 20, 2017 Hi Damo, You should only need 12V on A5 & gnd A25 or A34 as it sounds you have already done. I have replied to your Tech support case with a couple of further questions so we will keep the discussion going via that platform initially and see where that leads us. Quote Link to comment Share on other sites More sharing options...
Fabio_dxb Posted April 30, 2019 Report Share Posted April 30, 2019 Hi, i would link to know how and if you get the ecu connected. Quote Link to comment Share on other sites More sharing options...
exileperformance Posted April 30, 2019 Report Share Posted April 30, 2019 I'm sure this isn't the case but to double check.... The pinout is as if you are looking into the ecu or into the back of the connector. I have seen people look at it the wrong way. Quote Link to comment Share on other sites More sharing options...
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