2016 Subaru Legacy 2.5iFACTORY OEM SERVICE PROCEDURE

Power Steering System DTCS

POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODES (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 MAIN < Ref. to DTC C2511 TORQUE SENSOR MAIN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2512 TORQUE SENSOR SUB < Ref. to DTC C2512 TORQUE SENSOR SUB , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2513 TORQUE SENSOR MUCH TOLERANCE < Ref. to DTC C2513 TORQUE SENSOR MUCH TOLERANCE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2514 TORQUE SENSOR POWER SUPPLY < Ref. to DTC C2514 TORQUE SENSOR POWER SUPPLY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2521 MOTOR MALFUNCTION < Ref. to DTC C2521 MOTOR MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2522 RESOLVER SENSOR < Ref. to DTC C2522 RESOLVER SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2531 CONTROL MODULE CPU < Ref. to DTC C2531 CONTROL MODULE CPU , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2532 CONTROL MODULE PERIPHERAL CIRCUIT < Ref. to DTC C2532 CONTROL MODULE PERIPHERAL CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR < Ref. to DTC C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR < Ref. to DTC C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2543 ERROR PASSIVE < Ref. to DTC C2543 ERROR PASSIVE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2544 Auto Start Stop SYSTEM < Ref. to DTC C2544 AUTO START STOP SYSTEM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2545 EyeSight SYSTEM < Ref. to DTC C2545 EYESIGHT SYSTEM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2546 EyeSight VALUE < Ref. to DTC C2546 EYESIGHT VALUE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2547 EyeSight CHECK SUM < Ref. to DTC C2547 EYESIGHT CHECK SUM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2548 VEHICLE DYNAMICS CONTROL MODULE SYSTEM < Ref. to DTC C2548 VEHICLE DYNAMICS CONTROL MODULE SYSTEM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
C2551 POWER SUPPLY RELAY < Ref. to DTC C2551 POWER SUPPLY RELAY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U0073 CAN FAILURE, BUS 'OFF' DETECTION < 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). >
U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE < Ref. to DTC U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U1235 LOST COMMUNICATION WITH EyeSight < Ref. to DTC U1235 LOST COMMUNICATION WITH EYESIGHT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U1433 INVALID DATA RECEIVED FROM EyeSight < Ref. to DTC U1433 INVALID DATA RECEIVED FROM EYESIGHT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U1469 INVALID DATA RECEIVED FROM AUTOSTART STOP CONTROL MODULE < Ref. to DTC U1469 INVALID DATA RECEIVED FROM AUTOSTART STOP CONTROL MODULE , 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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