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Home >> Subaru >> 2019 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System & Washer System >> Auto Wiper System >> Inspection >> Int Operation Time Does Not Change If The Sensitivity Volume Switch Is Operated

Int Operation Time Does Not Change If The Sensitivity Volume Switch Is Operated

  1. CHECK DTC. 

    Using the Subaru Select Monitor, read the DTC of body integrated unit, combination meter, VDC, and CAN system.

    NOTE: For detailed operation procedures, refer to "Help" of application.

    Is a DTC detected for each system?

    Yes  : Perform a check according to the DTC.

    No  : Go to  2.

  2. CHECK DTC. 

    Read the DTCs for rain/light sensor using the Subaru Select Monitor.

    Is DTC detected?

    Yes  : Perform a check according to the DTC.

    No  : Go to  3.

  3. CHECK SENSITIVITY VOLUME SWITCH OUTPUT SIGNAL OF COMBINATION SWITCH (WIPER). 

    Perform unit inspection of the combination switch (wiper). Ref. to WIPER AND WASHER SYSTEMS>COMBINATION SWITCH (WIPER)>INSPECTION>INSPECTION OF SWITCH UNIT .

    Is the inspection result of sensitivity volume switch OK?

    Yes  : Go to  4.

    No  : Replace the switch assembly combination wiper select.

  4. CHECK HARNESS. 
    1. Turn the ignition switch to OFF, and disconnect the connectors of body integrated unit - combination switch (wiper).
    2. Check the harness between body integrated unit and combination switch.

      Connector and terminal. 

      (i171) No. 8 - (i69) No. 8:

      (i171) No. 7 - (i69) No. 7:

    Is the inspection result OK?

    Yes  : Go to  5.

    No  : Repair or replace the harness.

  5. CHECK DATA MONITOR (AUTO WIPER SENSITIVITY VOLUME SIGNAL). 

    Display the data of [Wiper Volume Status] using Subaru Select Monitor. Ref. to AUTOMATIC LIGHT AND WIPER (DIAGNOSTICS)>DATA MONITOR .

    Is the auto wiper sensitivity volume signal displayed properly?

    Yes  : Replace the rain sensor.

    No  : Replace the body integrated unit.