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Check With SUBARU Select Monitor

  1. CHECK DTC  .
    1. Turn the ignition switch to ON.
    2. Display the [Front Relay Control Module] data using Subaru Select Monitor. Refer to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

    Is DTC detected?

    Yes  : Perform a check according to the DTC.

    No  : Go to  2.

  2. CHECK DTC  .
    1. Turn the ignition switch to ON.
    2. Display the data of [body integrated unit] using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC detected?

    Yes  : Perform a check according to the DTC.

    No  : Go to  3.

  3. CHECK POWER SUPPLY CIRCUIT  .
    1. Display the data of [BATT Voltage (Control)], [BATT Voltage (BACKUP)] and [IGN Voltage] for [Front Relay Control Module] using Subaru Select Monitor.
    2. Display the data of [BATT voltage (control)], [BATT voltage (BACKUP)] and [IGN voltage] for [body integrated unit] using Subaru Select Monitor.

    Is the voltage 9 - 16 V?

    Yes  : Go to  4.

    No  : Check the harnesses of the battery, fuse, connector and power supply circuit. If there is no abnormality, replace the front relay control module or the body integrated unit.

  4. CHECK BODY INTEGRATED UNIT SETTING  .

    Check the setting of [wiperdeicer].

    Is the setting "Yes"?

    Yes  : Go to  5.

    No  : Change the customize setting to "Yes".

  5. CHECK WIPER DEICER SYSTEM OPERATION  .

    Check the wiper deicer system operation. Refer to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>Active Test .

    Does the wiper deicer system operate normally?

    Yes  : Go to  6.

    No  : Check the harnesses of the heat wire, relay and output circuit. If there is no abnormality, replace the front relay control module.

  6. CHECK DATA MONITOR  .

    Using Subaru Select Monitor, display [Rr Defogger SW]. Refer to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DATA MONITOR .

    Does the display change between [OFF] ←→ [ON], when the R defogger SW is operated?

    Yes  : Go to  7.

    No  : Check the harnesses of the R defogger SW and input circuit. If there is no abnormality, replace the body integrated unit.

  7. CHECK FRONT RELAY CONTROL MODULE  .

    Using Subaru Select Monitor, display [Wiper Deicer Request]. Refer to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DATA MONITOR .

    Does the display change between [OFF] ←→ [ON], when the R defogger SW is operated?

    Yes  : Replace the front relay control module.

    No  : Replace the body integrated unit.

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