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.
2017 Subaru Crosstrek BaseFACTORY OEM SERVICE PROCEDURE
Body Control System DTCS
BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Item | Content of diagnosis | Note |
|---|---|---|---|
| B1010 | BODY CONTROL SYSTEM (BIU) MALFUNCTION | Body integrated unit internal error | Ref. to DTC B1010 BODY CONTROL SYSTEM (BIU) MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1011 | BATTERY CONTROL POWER SUPPLY | Voltage malfunction caused by poor contact of battery power supply control circuits | Ref. to DTC B1011 BATTERY CONTROL POWER SUPPLY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1012 | BATTERY BACKUP POWER SUPPLY | Voltage malfunction caused by poor contact of battery power supply backup circuits | Ref. to DTC B1012 BATTERY BACKUP POWER SUPPLY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1013 | IGNITION POWER | Voltage malfunction caused by poor contact of IGN power supply circuits | Ref. to DTC B1013 IGNITION POWER , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1014 | ACC POWER | Voltage malfunction caused by poor contact of ACC power supply circuits | Ref. to DTC B1014 ACC POWER , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1015 | KEY INTERLOCK CIRCUIT | GND-output short of key interlock circuit | Ref. to DTC B1015 KEY INTERLOCK CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1016 | SHIFT LOCK CIRCUIT | Voltage malfunction caused by poor contact of shift lock circuits | Ref. to DTC B1016 SHIFT LOCK CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1401 | METER COLLATION | Malfunction related immobilizer | Ref. to DTC B1401 METER COLLATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1402 | IMMOBILIZER KEY COLLATION | Malfunction related immobilizer | Ref. to DTC B1402 IMMOBILIZER KEY COLLATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1405 | SCU COLLATION | Malfunction related immobilizer | Ref. to DTC B1405 SCU COLLATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1406 | SCU_EEPROM | Malfunction of security control module | Ref. to DTC B1406 SCU_EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1407 | MET COMMUNICATION | Communication failure between body integrated unit and combination meter | Ref. to DTC B1407 MET COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1408 | METER NON-VOLATILE MEMORY | Combination meter malfunction | Ref. to DTC B1408 METER NON-VOLATILE MEMORY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1409 | SCU COMMUNICATION | Communication failure between body integrated unit and security control module | Ref. to DTC B1409 SCU COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1410 | TRANSPONDER COMMUNICATION | Communication failure between key and body integrated unit | Ref. to DTC B1410 TRANSPONDER COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1411 | IMMOBILIZER ANTENNA | Faulty antenna | Ref. to DTC B1411 IMMOBILIZER ANTENNA , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| U1500 | KEYLESS UART COM. MALFUNCTION | Open or short circuit in keyless UART circuit | Ref. to DTC U1500 KEYLESS UART COM. MALFUNCTION , 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.
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