Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard TransFACTORY OEM SERVICE PROCEDURE
Immobilizer System (Diagnostics)
- Basic Diagnostic Procedure
- General Description
- Electrical Component Location
- Immobilizer Control Module I/O Signal
- Subaru Select Monitor
- Read Diagnostic Trouble Code (DTC)
- Clear Memory Mode
- Diagnostics Chart for Security Indicator Light
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC B1570: Antenna
- DTC B1571: Reference Code Incompatibility
- DTC B1572: IMM Circuit Failure (Except Antenna Circuit)
- DTC B1574: Key Communication Failure
- DTC B1575: Incorrect Immobilizer Key
- DTC B1576: EGI Control Module EEPROM
- DTC B1577: IMM Control Module EEPROM
- DTC B1578: Meter Failure
- DTC B1401: M Collation NG
- DTC B1402: Immobilizer Key Collation NG
- DTC B1405: SCU Collation NG
- DTC B1406: SCU_EEPROM_NG
- DTC B1407: M Communication Abnormal
- DTC B1408: Meter EEPROM Abnormal
- DTC B1409: SCU Communication Abnormal
- DTC B1410: Transponder Communication Abnormal
- DTC B1411: Immobilizer Antenna Abnormal
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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