2017 Subaru Outback 2.5iFACTORY OEM SERVICE PROCEDURE

Immobilizer Systems DTCS: ECM

ECM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC Item Note
B1570 ANTENNA Ref. to DTC B1570 ANTENNA , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CONTROL MODULE TO ECM) Ref. to DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CONTROL MODULE TO ECM) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1572 IMM CIRCUIT EXCEPT ANTENNA CIRCUIT Ref. to DTC B1572 IMM CIRCUIT EXCEPT ANTENNA CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1574 KEY COMMUNICATION Ref. to DTC B1574 KEY COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1575 INCORRECT IMMOBILIZER KEY Ref. to DTC B1575 INCORRECT IMMOBILIZER KEY , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1576 EGI CONTROL MODULE EEPROM Ref. to DTC B1576 EGI CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1577 IMM CONTROL MODULE EEPROM Ref. to DTC B1577 IMM CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
B1578 METER Ref. to DTC B1578 METER , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
Factory Service Tools

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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.