C1528

POWER STEERING: POWER STEERING SYSTEM: C1528: Motor Rotation Angle Sensor Malfunction

DTC C1528 - Motor Rotation Angle Sensor Malfunction

DESCRIPTION

The motor rotation angle sensor detects the motor rotation angle and sends this information to the power steering ECU.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: If the steering column or power steering ECU has been replaced, perform the rotation angle sensor initialization and torque sensor zero point calibration .

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION
(a) Check the installation condition of the motor rotation angle sensor connector.
OK:
Motor rotation angle sensor connector is securely connected to the power steering ECU.
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
2. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (MOTOR ROTATION ANGLE SENSOR)
(a) Turn the ignition switch to OFF.
(b) Connect an intelligent tester or Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the intelligent tester or Techstream on.
(e) Enter the following menus:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / CHASSIS / EMPS / DATA LIST /
(2) Techstream - Select: Chassis / EMPS / Data List /
(f) Select the item "Motor Rotation Angle" in the Data List and read the value displayed on the intelligent tester or Techstream.
(1) Intelligent tester

EMPS:





(2) Techstream

EMPS:





OK:
During steering operation, motor rotation angle value changes from 0 to 360 deg.
NG -- REPLACE STEERING COLUMN
OK -- REPLACE POWER STEERING ECU