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 MANUALSSUBARU2010IMPREZA 2.5I, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESLAN SYSTEM (DIAGNOSTICS) (EXCEPT STI)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC B1100 INTEG. UNIT SYSTEM ERRORTROUBLE SYMPTOM
2010 Subaru Impreza 2.5i, 4D Sedan, Automatic
DTC B1100 INTEG. Unit System Error: Trouble Symptom
2010 Subaru Impreza 2.5i, 4D Sedan, AutomaticSECTION Trouble Symptom
- Check light comes on in the combination meter.
- LAN communication immobilizer function may not be executed normally.
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK DTC. Check DTC indicated by body integrated unit. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) , OPERATION, Subaru Select Monitor. |
Is the DTC B1100 displayed current malfunction? | Go to step 2. | Temporary EEPROM access error occurred. |
2 CHECK CONNECTOR.
|
Is the DTC B1100 displayed current malfunction? | Replace the body integrated unit. Ref. to REMOVAL , Body Integrated Unit. | Temporary EEPROM access error occurred. |
RENDER: 1.0x
NO RELATED
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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.