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 MANUALSSUBARU2014FORESTER 2.5I, ENG CD FB25BA, STANDARD TRANSREPAIR AND DIAGNOSISSTEERINGPOWER STEERINGPOWER ASSISTED SYSTEM POWER STEERING (DIAGNOSTICS)LIST OF DIAGNOSTIC TROUBLE CODE (DTC)LIST
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard Trans
List of Diagnostic Trouble Code (DTC): List
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard TransSECTION List
| DTC | Item | Content of diagnosis | Note |
|---|---|---|---|
| None | Without DTC | Normal | < Ref. to WITHOUT DTC , INSPECTION, Subaru Select Monitor. > |
| "Assist limitation" is displayed in the current data «EPS operating condition». | Assist limitation is performed due to overheat protection control. | < Ref. to POWER STEERING ASSIST DISABLED , STEERING WARNING LIGHT DOES NOT COME ON, STEERING Warning Light. > | |
| "Overheating protection intervention history" in current data display shows 1 or more. | There are previous records of intervention to overheat protection control. | < Ref. to POWER STEERING ASSIST DISABLED , STEERING WARNING LIGHT DOES NOT COME ON, STEERING Warning Light. > | |
| C2511 | Torque Sensor Failure 1 (Main) |
|
< Ref. to DTC C2511: TORQUE SENSOR FAILURE 1 (MAIN) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2512 | Torque Sensor Failure 2 (Sub) | < Ref. to DTC C2512: TORQUE SENSOR FAILURE 2 (SUB) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > | |
| C2513 | Torque Sensor Failure 3 (Much Tolerance) | < Ref. to DTC C2513: TORQUE SENSOR FAILURE 3 (MUCH TOLERANCE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > | |
| C2514 | Torque Sensor Power Supply Failure | < Ref. to DTC C2514: TORQUE SENSOR POWER SUPPLY FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > | |
| C2521 | Motor Failure 1 (Motor) |
|
< Ref. to DTC C2521: MOTOR FAILURE 1 (MOTOR) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2522 | Motor Malfunction 2(Resolver) | < Ref. to DTC C2522: MOTOR MALFUNCTION 2 (RESOLVER) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > | |
| C2531 | ECU Failure 1 (CPU Failure) | Faulty main unit of power steering control module | < Ref. to DTC C2531: ECU FAILURE 1 (CPU FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2532 | ECU Failure 2 (Peripheral Circuit Failure) | Faulty main unit of power steering control module | < Ref. to DTC C2532: ECU FAILURE 2 (PERIPHERAL CIRCUIT FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2533 | ECM Failure 3 (Board Temperature Sensor Failure) | Faulty main unit of power steering control module | < Ref. to DTC C2533: ECM FAILURE 3 (BOARD TEMPERATURE SENSOR FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2541 | Vehicle Speed Is Abnormal |
|
< Ref. to DTC C2541: VEHICLE SPEED IS ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2543 | Error Passive Status | Defective CAN communication | < Ref. to DTC C2543: ERROR PASSIVE STATUS , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2551 | Power Supply Relay Failure |
|
< Ref. to DTC C2551: POWER SUPPLY RELAY FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| C2552 | Motor Relay Abnormal | Faulty relay | < Ref. to DTC C2552: MOTOR RELAY ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0073 | Control Module Communication Bus "A" Off | Defective CAN communication | < Ref. to DTC U0073: CONTROL MODULE COMMUNICATION BUS "A" OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0100 | Lost Communication With ECM/PCM "A" | Defective CAN communication | < Ref. to DTC U0100: LOST COMMUNICATION WITH ECM/PCM "A" , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0122 | Lost Communication With Vehicle Dynamics Control Module | Defective CAN communication | < Ref. to DTC U0122: LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | Defective CAN communication | < Ref. to DTC U0155: LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0401 | Invalid Data Received From ECM/PCM "A" | Defective CAN communication | < Ref. to DTC U0401: INVALID DATA RECEIVED FROM ECM/PCM "A" , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| U0416 | Invalid Data Received From Vehicle Dynamics Control Module | Defective CAN communication | < Ref. to DTC U0416: INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE , 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.