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.
2012 Subaru Outback Base, Standard TransFACTORY OEM SERVICE PROCEDURE
Parking Brake DTCS
PARKING BRAKE DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Detailed code | Display | Content of diagnosis | Reference |
|---|---|---|---|---|
| C0221 | 504A 504B 504C |
Parking Switch Line (abnormal) | Parking switch malfunction | Refer to , DTC C0221 PARKING POSITION SWITCH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0222 | 504E | Hill hold switch circuit | Hill hold switch malfunction | Refer to , DTC C0222 HILL HOLD SWITCH CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0231 | C110 | ECM Failure | Malfunction signal reception from ECM | Refer to , DTC C0231 ECM FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0232 | C114 | AT abnormal | Malfunction signal reception from TCM | Refer to , DTC C0232 AT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0233 | 509E 509F |
MT shift switch circuit | Malfunction of neutral position switch, back-up light switch | Refer to , DTC C0233 MT SHIFT SWITCH CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0234 | C111 | VDC Failure | Malfunction signal reception from VDC CM | Refer to , DTC C0234 VDC FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0235 | 5046 | Ignition switch circuit | No match of IGN input | Refer to , DTC C0235 IGNITION SWITCH CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0241 | 5000 502A 5026 C100 |
Electrical Control Module | Parking brake control module is faulty. | Refer to , DTC C0241 ELECTRICAL CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0242 | 5040 5041 |
Power Supply Voltage Failure | Parking brake control module power supply voltage is faulty. | Refer to , DTC C0242 POWER SUPPLY VOLTAGE FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 5042 | Internal Power Supply Voltage abnormal | Parking brake control module inner power supply voltage is faulty. | Refer to , DTC C0242 INTERNAL POWER SUPPLY VOLTAGE ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). | |
| C0243 | 50D1 50D3 50D4 50D5 50D6 |
Parameter selection error | Parking brake control module parameter selection failure | Refer to , DTC C0243 PARAMETER SELECTION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0251 | 5020 5022 5028 50CE 50CF |
Actuator Line (abnormal) | Actuator line of parking brake control module is faulty. | Refer to , DTC C0251 ACTUATOR LINE (ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0252 | 5018 5019 501A 50A0 |
Motor Malfunction | Motor malfunction of parking brake control module | Refer to , DTC C0252 MOTOR MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0253 | 501F 50C6 |
Actuator Stroke Excess | Actuator stroke excess | Refer to , DTC C0253 ACTUATOR STROKE EXCESS , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0261 | C101 C13F |
Improper CAN Communication | Defective CAN communication | Refer to , DTC C0261 IMPROPER CAN COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0262 | C10B | TCM Communication Circuit | CAN signal not received from TCM | Refer to , DTC C0262 TCM COMMUNICATION CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0263 | C107 | ECM Communication Circuit | CAN signal not received from ECM | Refer to , DTC C0263 ECM COMMUNICATION CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0264 | C108 C141 |
VDC communication system | CAN signal not received from VDC CM | Refer to , DTC C0264 VDC COMMUNICATION SYSTEM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0265 | C109 | Body Integrated Module Communication Circuit | CAN signal not received from body integrated unit | Refer to , DTC C0265 BODY INTEGRATED MODULE COMMUNICATION CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0267 | C13E | Meter communication system | CAN signal not received from combination meter | Refer to , DTC C0267 METER COMMUNICATION SYSTEM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0271 | 5030 5031 503C 50BE 50C5 50CB 50CC |
Force Sensor Line (abnormal) | Defective force sensor | Refer to , DTC C0271 FORCE SENSOR LINE (ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0272 | 501B 503D 503E |
Temperature Sensor Line (abnormal) | Defective temperature sensor | Refer to , DTC C0272 TEMPERATURE SENSOR LINE (ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0273 | 50B9 50BA |
Stroke Sensor Line (abnormal) | Defective stroke sensor | Refer to , DTC C0273 STROKE SENSOR LINE (ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0274 | 5033 503A |
Clutch sensor circuit | Defective clutch sensor | Refer to , DTC C0274 CLUTCH SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0275 | 5037 | Longitudinal G sensor circuit | Defective longitudinal G sensor | Refer to , DTC C0275 LONGITUDINAL G SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0281 | 50CA | Mid stop condition | Stop in the middle of stroke while actuator operation | Refer to , DTC C0281 MID STOP CONDITION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| C0282 | 50C9 | Emergency cancel status | Perform the emergency cancel. | Refer to , DTC C0282 EMERGENCY CANCEL STATUS , 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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