smitty, i found some info on the ds5 led coming on, besides power supply it mentions the upper and lower capacitor banks on the VL cards may cause this if they are unbalanced, it says unbalanced by around 50 v. i did find that voltage across the upper bank of caps was around 345v and it held steady with maybe a 5 volt drop. however the lower bank measured around 304v, and it dropped to 294v when car was running, both upper and lower banks increased as the breaking igbt turned on, but they are near 50 v apart, other cars are around 20 volt difference. from what i see of the circuit, it may just be some weak caps like you mention. gonna pull all 3 boards and have them checked out. keep you posted