I recently replaced my ABS/VSC ECU on my 2001 LC with a used ECU (ABS, Brake, ATRAC, VSC lights were on, no codes) and have removed all lights except VSC Trac and VSC Off. No codes and truck drives fine. When start up, no lights appear - appears and stays when truck starts rolling. I tried engaging/disengaging center diff lock. Any help appreciated, thanks!