LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2005 >> Impreza WRX STi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Engine (Diagnostics) -- H4DOTC >> Data Link Connector >> Note
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data Link Connector: Note

This connector is used both for the OBD-II general scan tools and Subaru Select Monitor.

CAUTION: Do not connect any scan tools other than the OBD-II general scan tools and Subaru Select Monitor, because the circuit for Subaru Select Monitor may be damaged.
Fig 1: Identifying Data Link Connector Terminals
G03817544Courtesy of SUBARU OF AMERICA, INC.
DATA LINK CONNECTOR TERMINALS

Terminal No. Contents Terminal No. Contents
1 Power supply 9 Blank
2 Blank 10 Subaru Select Monitor/OBD-II general scan tool signal
3 Blank 11 Blank
4 Blank 12 Ground
5 Blank 13 Ground
6 Line end check signal 1 14 Blank
7 Blank 15 Blank
8 Line end check signal 2 16 Blank