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.
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HOMESERVICE MANUALSSUBARU2014FORESTER 2.5I PREMIUM, ENG CD FB25BC, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXKEYLESS ACCESS WITH PUSH BUTTON START SYSTEM DTCS
2014 Subaru Forester 2.5i Premium, Eng CD FB25BC, Automatic CVT Trans
Keyless Access With Push Button Start System DTCS
2014 Subaru Forester 2.5i Premium, Eng CD FB25BC, Automatic CVT TransSECTION Keyless Access With Push Button Start System DTCS
KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC U0073 | CONTROL MODULE COMMUNICATION BUS "A" OFF |
| DTC U0100 | LOST COMMUNICATION WITH ECM/PCM "A" |
| DTC U0101 | LOST COMMUNICATION WITH TCM |
| DTC U0122 | LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE |
| DTC U0140 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| DTC U0155 | LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE |
| DTC U0401 | INVALID DATA RECEIVED FROM ECM/PCM "A" |
| DTC U0422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE |
| DTC B1242 | WIRELESS TUNER ABNORMAL |
| DTC B2271 | IGN FUSE BLOWN OR IGN CIRCUIT ABNORMAL |
| DTC B2274 | ACC MONITOR |
| DTC B2275 | STSW CIRCUIT ABNORMAL |
| DTC B2276 | ACCR SIGNAL ABNORMAL |
| DTC B2277 | SUBMERGING CIRCUIT ABNORMAL |
| DTC B2282 | VEHICLE SPEED SIGNAL ABNORMAL |
| DTC B2283 | VEHICLE SPEED SENSOR FAULT DETECTION |
| DTC B2284 | BRAKE SIGNAL (CABLE-INFORMATION DOES NOT MATCH TO BEAN-INFORMATION) |
| DTC B2285 | STEERING LOCK POSITION SIGNAL ABNORMAL |
| DTC B2286 | DRIVING POSSIBLE SIGNAL ABNORMAL |
| DTC B2779 | REMOTE CONTROL ENGINE STARTER COMMUNICATION COLLATION NG |
| DTC B2781 | STEERING LOCK ECU OPEN/SHORT |
| DTC B2782 | STEERING LOCK POWER SUPPLY CIRCUIT ABNORMAL (SMART ECU-SIDE ABNORMAL) |
| DTC B2784 | ANTENNA COIL FAULT |
| DTC B2785 | LIN COMMUNICATION ERROR |
| DTC B2786 | NO RESPONSE FROM STEERING LOCK ECU |
| DTC B2788 | IGN1 INPUT ABNORMAL |
| DTC B278A | ABNORMAL IMMOBILIZER POWER SUPPLY |
| DTC B278D | ID CODE BOX RECOGNITION JUDGMENT ABNORMAL |
| DTC B27A1 | DRIVER SIDE EXTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B27A2 | PASSENGER SIDE EXTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B27A5 | FRONT INTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B27A6 | REAR INTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B27A7 | TRUNK/REAR GATE INTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B27A8 | TRUNK/REAR GATE EXTERNAL ANTENNA OUTPUT STAGE OPEN |
| DTC B1571 | REFERENCE CODE INCOMPATIBILITY |
| DTC B1572 | IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) |
| DTC B1576 | EGI CONTROL MODULE EEPROM |
| DTC B1577 | IMM CONTROL MODULE EEPROM |
RENDER: 1.0x
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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.