How To Use Check Board

Turn the ignition switch to OFF.
Disconnect the connector from ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>REMOVAL
CAUTION: Make sure that the lock is released before moving the lever in order to avoid damaging the connector.
Connect the ECM connector to the check board.
Connect the ECM connector (C) to ECM.
CAUTION: Use the measurement connector (B) with part label (A) when measuring the voltage, current and resistance. If you mistakenly insert a taper pin for measurement into the ECM connector (C), do not use the check board again, otherwise a malfunction may (poor contact, etc.) occur on the vehicle.

Courtesy of SUBARU OF AMERICA, INC.
CAUTION:
- To prevent damage to the connector, when connecting the connector to ECM, insert the connector straight in until it stops, and while maintaining the position, lock the lever. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>INSTALLATION .
- Affix the check board the using tape (B) so that it may not contact the hose (A) of A/C.
Courtesy of SUBARU OF AMERICA, INC.