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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Front Relay Control Module (Diagnostics)) >> General Description >> Inspection >> Basic Inspection
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Basic Inspection

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

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
  3. Check the relay and fuse condition. Ref. to LIGHTING SYSTEM>RELAY AND FUSE>INSPECTION
  4. Check the connecting condition of harness and harness connector.
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