2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code (DTC): List

DTC Description & trouble part Reference
No No display Refer to POWER STEERING (DIAGNOSTICS)>Warning Light Illumination Pattern>STEERING WARNING LIGHT DOES NOT GO OFF .
[Assist limitation] is displayed on the data monitor [EPS operating condition]. Refer to POWER STEERING (DIAGNOSTICS)>Warning Light Illumination Pattern>STEERING WARNING LIGHT DOES NOT GO OFF .
The data monitor [ECU Overheat Protection] indicates at least 1 time. Refer to POWER STEERING (DIAGNOSTICS)>Warning Light Illumination Pattern>STEERING WARNING LIGHT DOES NOT GO OFF .
C2511 TORQUE SENSOR MAIN Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2511 TORQUE SENSOR MAIN .
C2512 TORQUE SENSOR SUB Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2512 TORQUE SENSOR SUB .
C2513 TORQUE SENSOR MUCH TOLERANCE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2513 TORQUE SENSOR MUCH TOLERANCE .
C2514 TORQUE SENSOR POWER SUPPLY Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2514 TORQUE SENSOR POWER SUPPLY .
C2521 MOTOR MALFUNCTION Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2521 MOTOR MALFUNCTION .
C2522 RESOLVER SENSOR Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2522 RESOLVER SENSOR .
C2531 CONTROL MODULE CPU Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2531 CONTROL MODULE CPU .
C2532 CONTROL MODULE PERIPHERAL CIRCUIT Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2532 CONTROL MODULE PERIPHERAL CIRCUIT .
C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR .
C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR .
C2544 AUTO START STOP SYSTEM Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2544 AUTO START STOP SYSTEM .
C2545 EYESIGHT SYSTEM Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2545 EYESIGHT SYSTEM .
C2546 EYESIGHT VALUE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2546 EYESIGHT VALUE .
C2547 EYESIGHT CHECK SUM Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2547 EYESIGHT CHECK SUM .
C2551 POWER SUPPLY RELAY Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2551 POWER SUPPLY RELAY .
U0079 CONTROL MODULE COMMUNICATION BUS "G" OFF Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0079 CONTROL MODULE COMMUNICATION BUS "G" OFF .
U007A CONTROL MODULE COMMUNICATION BUS "H" OFF Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U007A CONTROL MODULE COMMUNICATION BUS "H" OFF .
U0100 LOST COMMUNICATION WITH ECM/PCM "A" Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" .
U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE .
U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE .
U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE .
U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" .
U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE .
U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE .
U1235 LOST COMMUNICATION WITH EyeSight Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1235 LOST COMMUNICATION WITH EyeSight .
U1433 INVALID DATA RECEIVED FROM EyeSight Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1433 INVALID DATA RECEIVED FROM EyeSight .
U1469 INVALID DATA RECEIVED FROM AUTOSTART STOP CONTROL MODULE Refer to POWER STEERING (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1469 INVALID DATA RECEIVED FROM AUTOSTART STOP CONTROL MODULE .
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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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