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SkyMG37x · 07-02-2009, 08:37 PM

The MIL lamp would have been a separate issue than you reported. I would suspect that the ECU replacement was due to that.

As for the TSB, I assume you're referring to the one for the downshift smoothness, and it should definitely apply to your car. Your description of your issue sounds different so not sure if that's what you explained to them but nonetheless the TSB is applicable - they may not have the latest info though. Also, it requires reprogramming of the TCM (Transmission Control Module), not the ECU, so the ECU issue seems separate.

07-02-2009, 08:37 PM	#2
SkyMG37x Registered User Trader Score: (0) Join Date: Apr 2009 Location: Southern NH Posts: 413	The MIL lamp would have been a separate issue than you reported. I would suspect that the ECU replacement was due to that. As for the TSB, I assume you're referring to the one for the downshift smoothness, and it should definitely apply to your car. Your description of your issue sounds different so not sure if that's what you explained to them but nonetheless the TSB is applicable - they may not have the latest info though. Also, it requires reprogramming of the TCM (Transmission Control Module), not the ECU, so the ECU issue seems separate. __________________ John - 2009 G37x Sedan Blue Slate/Stone with Premium/Nav - Ventureshield Last edited by SkyMG37x; 07-02-2009 at 08:43 PM.