SERVICE INFORMATION Replacement 5-speed rear wheel drive Automatic Transmission (A/T) assemblies and replacement control valves (valve bodies) now come with blank Transmission Control Modules (TCMs). Blank TCMs come without software and must be programmed (not reprogrammed) and then configured after they are installed. When ordering a replacement A/T or control valve, use the Nissan electronic parts information systems to obtain the correct software program part number See this bulletin for further detail.