| Is the ignition switch ON- | Subaru Select Monitor > INSPECTION | Turn the ignition switch to ON, and select VDC using the Subaru Select Monitor. |
2.CHECK BATTERY. 1) Turn the ignition switch to OFF. 2) Measure the battery voltage. | Is the voltage 11 V or more- | Subaru Select Monitor > INSPECTION | Charge or replace the battery. |
3.CHECK BATTERY TERMINAL. | Is there poor contact at battery terminal- | Repair or tighten the battery terminal. | Subaru Select Monitor > INSPECTION |
4.CHECK INSTALLATION OF VDCCM&H/U CONNECTOR. Turn the ignition switch to OFF. | Is the VDCCM&H/U connector inserted into VDCCM&H/U until the clamp locks onto it- | Subaru Select Monitor > INSPECTION | Insert VDCCM&H/U connector into VDCCM&H/U. |
5.CHECK LAN SYSTEM. Perform the diagnosis for LAN system. Basic Diagnostic Procedure | Is there any fault in LAN system- | Perform the diagnosis according to DTC for LAN system. List of Diagnostic Trouble Code (DTC) | Subaru Select Monitor > INSPECTION |
6.CHECK SUBARU SELECT MONITOR COMMUNICATION. 1) Turn the ignition switch to ON. 2) Check whether communication to VDC system can be executed normally. | Is the system name displayed on Subaru Select Monitor- | Check the DTC in VDC system. Read Diagnostic Trouble Code (DTC) | Subaru Select Monitor > INSPECTION |
7.CHECK POWER SUPPLY CIRCUIT. 1) Turn the ignition switch to ON. (Engine OFF) 2) Measure the ignition power supply voltage between VDCCM&H/U connector and chassis ground. Connector & terminal (B310) No. 5 (+) — Chassis ground (−): (B310) No. 16 (+) — Chassis ground (−): (B310) No. 33 (+) — Chassis ground (−): | Is the voltage 10 — 15 V- | Subaru Select Monitor > INSPECTION | Repair open circuit in harness between VDCCM&H/U and battery. |
8.CHECK HARNESS CONNECTOR BETWEEN VDCCM&H/U AND CHASSIS GROUND. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from the VDCCM&H/U. 3) Measure the resistance of harness between VDCCM&H/U connector and chassis ground. Connector & terminal (B310) No. 46 — Chassis ground: | Is the resistance less than 10 -- | Subaru Select Monitor > INSPECTION | Repair the open circuit of VDCCM&H/U ground circuit and poor contact of connector. |
9.CHECK POOR CONTACT OF CONNECTOR. | Is there poor contact of control module power supply, ground circuit and data link connector- | | Replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) |
Operation
