Rummy Posted August 5, 2013 Share Posted August 5, 2013 Hi coneheads First a little back story, TC previously running fine except the RED "OFF" LED didn't light when selected so I thought I'd check it out. I was checking for a power feed to LED when I may have shorted something as the interior lights fuse blew. I replaced that and checked all other fuses which are fine and then noticed a problem with the Green Diag LED. Main question is What's the GREEN diagnostic light meant to do on turning the ignition? Previously, I noticed the light coming on and staying on during WS modes then flashing when turning the selector to OFF. However my problem now is the light takes about 10 seconds to come on then dims to off after about 5 seconds and won't illuminate in any other WS mode until I turn IGN off and on again where the same thing happens. Sometimes it doesn't come on at all. The car will now either not start or run like a bag of nails since. I have checked for Fault codes of which there are none and reset the ECU. No change Any ideas? Cheers Quote Link to comment Share on other sites More sharing options...
Rummy Posted August 6, 2013 Author Share Posted August 6, 2013 UPDATE** I bypassed the TCU and now it runs sweet as a nut. So looks like the TCU will have to go away for repair! Quote Link to comment Share on other sites More sharing options...
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