2013 Subaru Outback RFACTORY OEM SERVICE PROCEDURE

Immobilizer DTCS

BODY INTEGRATED UNIT DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC Description Reference
B1570 Faulty antenna Refer to extxref DTC B1570 ANTENNA .
B1571 Reference code incompatibility between body integrated unit and ECM Refer to DTC B1571 REFERENCE CODE INCOMPATIBILITY .
B1572 Communication failure between body integrated unit and ECM Refer to DTC B1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) .
B1574 Communication failure between key and body integrated unit Refer to DTC B1574 KEY COMMUNICATION FAILURE .
B1575 Incorrect immobilizer key (Use of unregistered key in body integrated unit) Refer to DTC B1575 INCORRECT IMMOBILIZER KEY .
B1576 ECM malfunctioning Refer to DTC B1576 EGI CONTROL MODULE EEPROM .
B1577 Body integrated unit malfunctioning Refer to DTC B1577 IMM CONTROL MODULE EEPROM .
B1578
  • Reference code incompatibility between combination meter and body integrated unit
  • Communication failure between body integrated unit and ECM
 Refer to DTC B1578 METER FAILURE .
  • Reference code incompatibility between body integrated unit and security control module
  • Communication failure between body integrated unit and ECM
P0513 Incorrect immobilizer key (Use of unregistered key in body integrated unit) Refer to DTC P0513 INCORRECT IMMOBILIZER KEY .
P1570 Faulty antenna Refer to DTC P1570 ANTENNA .
P1571 Reference code incompatibility between body integrated unit and ECM Refer to DTC P1571 REFERENCE CODE INCOMPATIBILITY .
P1572 Communication failure between body integrated unit and ECM Refer to DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) .
P1574 Communication failure between key and body integrated unit Refer to DTC P1574 KEY COMMUNICATION FAILURE .
P1576 ECM malfunctioning Refer to DTC P1576 EGI CONTROL MODULE EEPROM .
P1577 Body integrated unit malfunctioning Refer to DTC P1577 IMM CONTROL MODULE EEPROM .
P1578
  • Reference code incompatibility between combination meter and body integrated unit
  • Communication failure between body integrated unit and ECM
 Refer to DTC P1578 METER FAILURE .
  • Reference code incompatibility between body integrated unit and security control module
  • Communication failure between body integrated unit and ECM
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.