Subaru 2009 IMPREZA Service Manual page 1254

General Scan Tool
ENGINE (DIAGNOSTICS)
7. MODE $07
Refer to the data of DTC (pending code) for troubleshooting result about emission in the first time.
8. MODE $09
Refer to the data of vehicle specification (V.I.N., calibration ID, etc.).
EN(H4DOTC)(diag)-33