Follow up from the previous post: Crown was called in after the Access4 module replacement. Their diagnoses was a shorted traction motor. Neither I nor the techs on the opposing shift had ever heard of such a thing but according to his troubleshooting chart it's there. Wondering why it's not included in their manuals or on the website? Anyway, I just replaced the motor and now code 821 is popping up (LS transducer) and I've gone through trying to recalibrate the transducer but it keeps failing. I've tried reflashing the software again and it still keeps failing. Crown manual calls for replacing Access4. Anyone?