1.CHECK POWER SUPPLY CIRCUIT. Connect DST-i to data link connector. | | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE |
2.CHECK POWER SUPPLY CIRCUIT. 1) Turn the ignition switch to ON. 2) Measure the voltage between data link connector and chassis ground. Connector & terminal (B40) No. 8 (+) — Chassis ground (−): (B40) No. 16 (+) — Chassis ground (−): | Is the voltage 10 V or more- | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE | Repair the power supply circuit. NOTE: In this case, repair the following item: • Open or ground short circuit of harness between battery and data link connector • Blown out of fuse (M/B No. 17, 19) |
3.CHECK HARNESS BETWEEN DATA LINK CONNECTOR AND CHASSIS GROUND. 1) Turn the ignition switch to OFF. 2) Measure the resistance of harness between data link connector and chassis ground. Connector & terminal (B40) No. 4 — Chassis ground: (B40) No. 5 — Chassis ground: | Is the resistance less than 5 -- | Repair the poor contact of data link connector. | Repair the harness and connector. |
4.CHECK SUBARU SELECT MONITOR. 1) Connect the Subaru Select Monitor to a normal vehicle. 2) Start the engine and perform communication between the Subaru Select Monitor and vehicle. | Is communication possible- | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE | Use another Subaru Select Monitor because the CAN communication circuit of the Subaru Select Monitor is faulty. |
5.CHECK CAN COMMUNICATION CIRCUIT. Check the CAN communication circuit. CAN Communication Circuit Check | Is the CAN communication circuit normal- | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE | Repair the CAN communication circuit. |
6.CHECK CONNECTOR. Check poor contact of A/C CM connector, data link connector and coupling connector. | Is there poor contact of connector- | | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE |
7.CHECK FUSE. 1) Turn the ignition switch to OFF. 2) Remove the fuses No. 8, 9, 14 from main fuse box. | | | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE |
8.CHECK A/C CM POWER SUPPLY CIRCUIT. 1) Install the A/C control panel. 2) Disconnect the A/C CM connector. 3) Measure the voltage between A/C CM connector terminal and chassis ground after turning the ignition switch to ON. Connector & terminal (i80) No. 1 (+) — Chassis ground (−): (i80) No. 8 (+) — Chassis ground (−): (i80) No. 20 (+) — Chassis ground (−): | Is the voltage 10 V or more- | Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE | Check for open or short circuit in the harness between A/C CM and fuse. |
9.CHECK A/C CM GROUND CIRCUIT. Measure the resistance of harness between A/C CM and chassis ground. Connector & terminal (i80) No. 4 — Chassis ground: | Is the resistance less than 5 -- | Check the connection between the data link connector and Subaru Select Monitor. | Repair the harness for ground line. |
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