14CUX diagnostics-Good news/bad news.

Quote:

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Originally Posted by supadik

I had the ECU disconnected while I fitted the fault code reader so I assumed i'd get error 03 but i didn't so I assumed I'd been sold a duff code reader.

Can anybody tell me if the code reader will show 03 after cutting the power to the ecu please.
Cheers

Rich

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After reconnecting power to the ECU you should see '02' when you next turn on the ignition. Assuming you used ignition power for the reader.

Easy way to disconnect power from the ECU is to pull the injector fuse under the bonnet.