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
Power Steering System DTCS
POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Item | Description |
|---|---|---|
| None | Without DTC | <Ref. to WITHOUT DTC , INSPECTION, Subaru Select Monitor.> |
| "Assist limitation" is displayed in the current data «EPS operating condition». | <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. | <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 Failure 2 (Angle Abnormal) | <Ref. to DTC C2522 MOTOR FAILURE 2 (ANGLE ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| C2531 | ECU Failure 1 (CPU Failure) | <Ref. to DTC C2531 ECU FAILURE 1 (CPU FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| C2532 | ECU Failure 2 (Peripheral Circuit Failure) | <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) | <Ref. to DTC C2533 ECM FAILURE 3 (BOARD TEMPERATURE SENSOR FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| C2541 | Vehicle Speed Failure (Sensor Failure) | <Ref. to DTC C2541 VEHICLE SPEED FAILURE (SENSOR FAILURE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| C2543 | Error Passive Status | <Ref. to DTC C2543 ERROR PASSIVE STATUS , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| C2548 | Vehicle Dynamics Control Module Abnormal | <Ref. to DTC C2548 VEHICLE DYNAMICS CONTROL MODULE ABNORMAL , 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).> |
| U0073 | Control Module Communication Bus Off | <Ref. to DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0100 | Lost Communication With ECM/PCM "A" | <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 | <Ref. to DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0126 | Lost Communication With Steering Angle Sensor Module | <Ref. to DTC U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | <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" | <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 | <Ref. to DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.