CHECK SUBARU SELECT MONITOR GROUND CIRCUIT.

1) Disconnect the connectors from the ECM. (2.5 L model)

2) Measure the resistance of harness between the data link connector and ECM or the chassis ground.

Connector & terminal

2.0 L model

(B40) No. 12 — Chassis ground:
(B40) No. 13 — Chassis ground:

2.5 L model

(B40) No. 12 — (B134) No. 6:
(B40) No. 12 — (B134) No. 6:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the open circuit of harness between data link connector and chassis ground or ECM, and poor contact of connector.