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.
2015 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Body Control System DTCS
BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Item | Description |
|---|---|---|
| None | Communication for initializing impossible | <Ref. to COMMUNICATION FOR INITIALIZING IMPOSSIBLE , Subaru Select Monitor.> |
| B1010 | Integ. Unit System Error | <Ref. to DTC B1010 INTEG. UNIT SYSTEM ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1011 | BATT P/Supply Malfunction Cont | <Ref. to DTC B1011 BATT P/SUPPLY MALFUNCTION CONT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1012 | BATT P/Supply Malfunction Backup | <Ref. to DTC B1012 BATT P/SUPPLY MALFUNCTION BACKUP , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1013 | Ignition Power Failure | <Ref. to DTC B1013 IGNITION POWER FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1014 | ACC Power Failure | <Ref. to DTC B1014 ACC POWER FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1015 | Key Interlock Circuit Abnormal | <Ref. to DTC B1015 KEY INTERLOCK CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1016 | Shift Lock Circuit Failure | <Ref. to DTC B1016 SHIFT LOCK CIRCUIT FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1401 | M Collation NG | <Ref. to DTC B1401 M COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1402 | Immobilizer Key Collation NG | <Ref. to DTC B1402 IMMOBILIZER KEY COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1405 | SCU Collation NG | <Ref. to DTC B1405 SCU COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1406 | SCU_EEPROM_NG | <Ref. to DTC B1406 SCU_EEPROM_NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1407 | M Communication Abnormal | <Ref. to DTC B1407 M COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1408 | Meter EEPROM Abnormal | <Ref. to DTC B1408 METER EEPROM ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1409 | SCU Communication Abnormal | <Ref. to DTC B1409 SCU COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1410 | Transponder Communication Abnormal | <Ref. to DTC B1410 TRANSPONDER COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1411 | Immobilizer Antenna Abnormal | <Ref. to DTC B1411 IMMOBILIZER ANTENNA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U1500 | Keyless UART Com. Malfunction | <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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