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Power Steering System DTCS

POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Item Content of diagnosis Note
Without DTC Normal Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Subaru Select Monitor>INSPECTION>WITHOUT DTC .
«Assist limitation» is displayed in the current data «EPS operating condition». Assist limitation is performed due to overheat protection control. Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>STEERING Warning Light>STEERING WARNING LIGHT DOES NOT COME ON>POWER STEERING ASSIST DISABLED .
«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 ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>STEERING Warning Light>STEERING WARNING LIGHT DOES NOT COME ON>POWER STEERING ASSIST DISABLED .
TORQUE SENSOR MAIN
  • Poor connector contact
  • Forgot to connect connector
  • Faulty torque sensor section circuit
  • Faulty torque sensor coil
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2511 TORQUE SENSOR MAIN .
TORQUE SENSOR SUB Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2512 TORQUE SENSOR SUB .
TORQUE SENSOR MUCH TOLERANCE Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2513 TORQUE SENSOR MUCH TOLERANCE .
TORQUE SENSOR POWER SUPPLY Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2514 TORQUE SENSOR POWER SUPPLY .
MOTOR MALFUNCTION
  • Poor connector contact
  • Forgot to connect connector
  • Harness open/short circuit
  • Motor open circuit
  • Power transistor shorted/open
  • Terminal power supply or ground short
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2521 MOTOR MALFUNCTION .
RESOLVER SENSOR Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2522 RESOLVER SENSOR .
CONTROL MODULE CPU Faulty main unit of power steering control module Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2531 CONTROL MODULE CPU .
CONTROL MODULE PERIPHERAL CIRCUIT Faulty main unit of power steering control module Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2532 CONTROL MODULE PERIPHERAL CIRCUIT .
CONTROL MODULE BOARD TEMPERATURE SENSOR Faulty main unit of power steering control module Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR .
VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR
  • Poor connector contact
  • Forgot to connect connector
  • Harness open/short circuit
  • VDC system failure
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR .
ERROR PASSIVE Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2543 ERROR PASSIVE .
EyeSight SYSTEM EyeSight system failure Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2545 EyeSight SYSTEM .
EyeSight VALUE EyeSight system failure Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2546 EyeSight VALUE .
EyeSight CHECK SUM
  • EyeSight system failure
  • Defective CAN communication
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2547 EyeSight CHECK SUM .
VEHICLE DYNAMICS CONTROL MODULE SYSTEM VDC system failure Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2548 VEHICLE DYNAMICS CONTROL MODULE SYSTEM .
ASSIST MAP SELECTION
  • Faulty main unit of power steering control module
  • Defective CAN communication
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2549 ASSIST MAP SELECTION .
POWER SUPPLY RELAY
  • Power supply voltage malfunction
  • Faulty relay contact
 Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2551 POWER SUPPLY RELAY .
MOTOR RELAY Faulty relay Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC C2552 MOTOR RELAY .
CONTROL MODULE COMMUNICATION BUS OFF Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF .
LOST COMMUNICATION WITH ECM/PCM "A" Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" .
LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE .
LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE .
LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE .
INVALID DATA RECEIVED FROM ECM/PCM "A" Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" .
INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE .
LOST COMMUNICATION WITH EyeSight Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1235 LOST COMMUNICATION WITH EyeSight .
INVALID DATA RECEIVED FROM EyeSight Defective CAN communication Ref. to POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U1433 INVALID DATA RECEIVED FROM EyeSight .
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