"On later systems a 2-pin service check
connector (SCS) is jumpered and the
codes are flashed on the dashboard MIL.
Image 3-1 shows the 2-pin SCS (marked
by white arrow). This connector is typically located behind the dash at the
lower right corner. Note that there is another connector
right beside the 2-pin SCS, a 3-pin connecter. This is a data link connector
(DLC) and is used by a scan tool to retrieve serial data from the ECM. It is
easy to confuse this connector for the
SCS. The DLC is a 3-pin connector, but
sometimes only has two wires in the
connector. Always jump the wires that
are in the connecter with only 2 cavities.
All the 2-pin SCSs can be jumpered by using a wire, and the later systems have a
SCS tool available from Honda. The Honda SCS tool that works on all late model
systems is part # 07PAZ-0010100 and retails for $3.75 (shown in Image 3-2). "