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Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Front Relay Control Module (Diagnostics) >> General Description >> Inspection >> Basic Inspection

Basic Inspection

Before performing diagnosis, check the following items which might affect problems related to Front relay control module.

  1. Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Front Relay Control Module]. Check that the value is within the standard (9 - 16 V). Ref. to Front Relay Control Module (Diagnostics)>Data Monitor .
    • BATT Voltage (Control)
    • BATT Voltage (BACKUP)
    • IGN Voltage
  2. Check the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY>INSPECTION . Ref. to STARTING/CHARGING SYSTEMS (H4DO)>BATTERY>INSPECTION .
  3. Check the relay and fuse condition.
  4. Check the connecting condition of harness and harness connector.
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