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 MANUALSSUBARU2014IMPREZA SPORT LIMITEDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEM (DIAGNOSTICS)LIST OF DIAGNOSTIC TROUBLE CODE (DTC)LIST
2014 Subaru Impreza Sport Limited
List of Diagnostic Trouble Code (DTC): List
2014 Subaru Impreza Sport LimitedSECTION List
| DTC | Item | Content of diagnosis | Note |
|---|---|---|---|
| None | Communication for Initializing Impossible | Subaru Select Monitor communication is open or shorted. | < Ref. to COMMUNICATION FOR INITIALIZING IMPOSSIBLE , Subaru Select Monitor.> |
| B1100 | Integ. Unit System Error | Body integrated unit internal error | < Ref. to DTC B1100 INTEG. UNIT SYSTEM ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1101 | BATT P/Supply Malfunction Cont | Voltage malfunction caused by poor contact of battery power supply control circuits | < Ref. to DTC B1101 BATT P/SUPPLY MALFUNCTION CONT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1102 | BATT P/Supply Malfunction Backup | Voltage malfunction caused by poor contact of battery power supply backup circuits | < Ref. to DTC B1102 BATT P/SUPPLY MALFUNCTION BACKUP , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1103 | Ignition Power Failure | Voltage malfunction caused by poor contact of IGN power supply circuits | < Ref. to DTC B1103 IGNITION POWER FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1104 | ACC Power Failure | Voltage malfunction caused by poor contact of ACC power supply circuits | < Ref. to DTC B1104 ACC POWER FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1105 | Key Interlock Circuit Abnormal | GND-output short of key interlock circuit | < Ref. to DTC B1105 KEY INTERLOCK CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1106 | Shift Lock Circuit Failure | Voltage malfunction caused by poor contact of shift lock circuits | < Ref. to DTC B1106 SHIFT LOCK CIRCUIT FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1401 | M Collation NG | Malfunction related immobilizer | < Ref. to DTC B1401 M COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1402 | Immobilizer Key Collation NG | Malfunction related immobilizer | < Ref. to DTC B1402 IMMOBILIZER KEY COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1405 | SCU Collation NG | Malfunction related immobilizer | < Ref. to DTC B1405 SCU COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1406 | SCU_EEPROM_NG | Malfunction of security control module | < Ref. to DTC B1406 SCU_EEPROM_NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1407 | M Communication Abnormal | Communication failure between body integrated unit and combination meter | < Ref. to DTC B1407 M COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1408 | Meter EEPROM Abnormal | Combination meter malfunction | < Ref. to DTC B1408 METER EEPROM ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1409 | SCU Communication Abnormal | Communication failure between body integrated unit and security control module | < Ref. to DTC B1409 SCU COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1410 | Transponder Communication Abnormal | Communication failure between key and body integrated unit | < Ref. to DTC B1410 TRANSPONDER COMMUNICATION ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1411 | Immobilizer Antenna Abnormal | Faulty antenna | < Ref. to DTC B1411 IMMOBILIZER ANTENNA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1500 | Keyless UART Com. Malfunction | Open or short circuit in keyless UART circuit | < Ref. to DTC B1500 KEYLESS UART COM. MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
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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.