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.
2020 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Power Steering System (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Subaru Select Monitor
- Read Diagnostic Trouble Code (DTC)
- Inspection Mode
- Clear Memory Mode
- STEERING Warning Light
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC C2511: Torque Sensor Main
- DTC C2512: Torque Sensor Sub
- DTC C2513: Torque Sensor Much Tolerance
- DTC C2514: Torque Sensor Power Supply
- DTC C2521: Motor Malfunction
- DTC C2522: Resolver Sensor
- DTC C2531: Control Module CPU
- DTC C2532: Control Module Peripheral Circuit
- DTC C2533: Control Module Board Temperature Sensor
- DTC C2541: Vehicle Dynamics Control Module Vehicle Speed Sensor
- DTC C2543: Error Passive
- DTC C2545: Eyesight System
- DTC C2546: Eyesight Value
- DTC C2547: Eyesight Check Sum
- DTC C2548: Vehicle Dynamics Control Module System
- DTC C2549: Assist Map Selection
- DTC C2551: Power Supply Relay
- DTC C2552: Motor Relay
- DTC U0073: Control Module Communication Bus Off
- DTC U0100: Lost Communication With ECM/Pcm "A"
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0126: Lost Communication With Steering Angle Sensor Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0401: Invalid Data Received From ECM/Pcm "A"
- DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U1235: Lost Communication With Eyesight
- DTC U1433: Invalid Data Received From Eyesight
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.