Power Steering System DTCS

POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC	Item	Content of diagnosis	Note
None	Without DTC	Normal	Ref. to WITHOUT DTC , INSPECTION, Subaru Select Monitor.
	"Assist limitation" is displayed in the current data «EPS operating condition».	Assist limitation is performed due to overheat protection control.	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.	There are previous records of intervention to overheat protection control.	Ref. to POWER STEERING ASSIST DISABLED , STEERING WARNING LIGHT DOES NOT COME ON, STEERING Warning Light.
C2511	TORQUE SENSOR MAIN	Poor connector contact Forgot to connect connector Faulty torque sensor section circuit Faulty torque sensor coil	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	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 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	Faulty main unit of power steering control module	Ref. to DTC C2531 CONTROL MODULE CPU , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2532	CONTROL MODULE PERIPHERAL CIRCUIT	Faulty main unit of power steering control module	Ref. to DTC C2532 CONTROL MODULE PERIPHERAL CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2533	CONTROL MODULE BOARD TEMPERATURE SENSOR	Faulty main unit of power steering control module	Ref. to DTC C2533 CONTROL MODULE BOARD TEMPERATURE SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2541	VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR	Poor connector contact Forgot to connect connector Harness open/short circuit	Ref. to DTC C2541 VEHICLE DYNAMICS CONTROL MODULE VEHICLE SPEED SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2543	ERROR PASSIVE	Defective CAN communication	Ref. to DTC C2543 ERROR PASSIVE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2551	POWER SUPPLY RELAY	Power supply voltage malfunction Faulty relay contact	Ref. to DTC C2551 POWER SUPPLY RELAY , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2552	MOTOR RELAY	Faulty relay	Ref. to DTC C2552 MOTOR RELAY , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
U0073	CONTROL MODULE COMMUNICATION BUS OFF	Defective CAN communication	Ref. to DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
U0122	LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE	Defective CAN communication	Ref. to DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
U0416	INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE	Defective CAN communication	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	Defective CAN communication	Ref. to DTC U1120 LOST COMMUNICATION WITH AUTOSTART STOP CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).