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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Hybrid Electric Vehicle System) >> Relay And Fuse >> Removal >> HV Battery Heater Relay

HV Battery Heater Relay

WARNING: This page is about a different variant/trim than selected.
WARNING: The hybrid system includes a high voltage circuit. Mishandling could cause accidents such as electric shock or leak. Refer to PRECAUTION/WARNING>Warning (HYBRID SYSTEM) .
CAUTION: Airbag system satellite safing sensor is located under the front center of the rear seat cushion. Be careful not to apply strong impact to the sensor when working with the rear seat cushion removed.
  1. Disconnect the ground terminal from battery and wait for at least 60 seconds before starting work. Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
  2. Remove the service disconnect plug. Refer to HYBRID ELECTRIC VEHICLE>SERVICE PLUG>REMOVAL .
  3. Remove the rear seat cushion assembly and the backrest assembly LH. Refer to SEATS>REAR SEAT>REMOVAL .
  4. Remove the trim panel - rear apron. Refer to EXTERIOR/INTERIOR TRIM>REAR QUARTER TRIM>REMOVAL .
  5. Remove the Reverse Automatic Braking Control Module. Refer to REVERSE AUTOMATIC BRAKING>REVERSE AUTOMATIC BRAKING CONTROL MODULE>REMOVAL .
  6. Remove the duct assembly - cooling out. Refer to HYBRID ELECTRIC VEHICLE>HIGH VOLTAGE BATTERY COOLING SYSTEM>REMOVAL>REAR DUCT .
  7. Remove the charger duct. Refer to HYBRID ELECTRIC VEHICLE>ELECTRIC VEHICLE CHARGER>REMOVAL>CHARGER DUCT .
  8. Disconnect the main battery cable assembly.
    WARNING: Be sure to wear insulated gloves.
    1. Release the clip and hook, and then remove the cover - interlock.
      G13235540Courtesy of SUBARU OF AMERICA, INC.
    2. Disconnect the ground terminal and remove the cable clip.
    3. Disconnect the connector and disconnect the main battery cable assembly.
      CAUTION:
      • Be sure to insulate the disconnected connector by wrapping it with insulating tape.
      • Apply tape or similar item (that will not leave adhesive residue) to close the opening after the cable was disconnected so that foreign matter, water drops, or other substance does not enter.
      G13235541Courtesy of SUBARU OF AMERICA, INC.
  9. Perform zero-voltage test.
    WARNING: Be sure to wear insulated gloves.
    1. Measure the voltage of the high voltage line between HV battery connector terminals.

      Preparation tool: 

      Circuit tester

      Standard: 0 V 

      G13235542Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the cover - sensor.
    WARNING: Be sure to wear insulated gloves.
    1. Using the service disconnect plug, release the interlock clip.
      1. Align the projecting portion on the service disconnect plug with the interlock clip groove.
        CAUTION: To avoid damaging the projecting portion and the clip, fit the service disconnect plug completely.
      2. While holding the Interlock clip, rotate and detach the service disconnect plug in the direction of arrow shown in the figure.
    2. Remove the bolts, and then remove the cover - sensor.
      G13235543Courtesy of SUBARU OF AMERICA, INC.
      NOTE: Store the removed Interlock clip together with the service disconnect plug.
  11. Remove the bar - floor front COMPL.
    1. Remove the bolts, and remove the bar - floor front COMPL.
      G13235544Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the cover - battery front.
    WARNING: Be sure to wear insulated gloves.
    1. Remove the bolts, and then remove the cover - battery front.
      G13235545Courtesy of SUBARU OF AMERICA, INC.
  13. Remove the electric vehicle charger assembly. Refer to HYBRID ELECTRIC VEHICLE>ELECTRIC VEHICLE CHARGER>REMOVAL>EV CHARGER .
  14. Remove the HV battery heater relay.
    WARNING:
    • Be sure to wear insulated gloves.
    • Be sure to use an insulating sheet at locations other than the work location.
    1. Disconnect the connector.
    2. Remove the bolt and remove the HV battery heater relay.
      G13235546Courtesy of SUBARU OF AMERICA, INC.
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