C1523

POWER STEERING: POWER STEERING SYSTEM: C1522: Motor Circuit Malfunction

DTC C1522 - Motor Circuit Malfunction

DTC C1523 - Motor Circuit Malfunction

DTC C1524 - Motor Circuit Malfunction

DESCRIPTION

The power steering ECU supplies the current to the power steering motor through the motor circuit.






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. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (MOTOR VOLTAGE)
(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 items "Motor Terminal Volt (U)", "Motor Terminal Volt (V)" and "Motor Terminal Volt (W)" in the Data List and read the value displayed on the intelligent tester or Techstream.
(1) Intelligent tester

EMPS:





(2) Techstream

EMPS:





Result:






B -- REPLACE STEERING COLUMN
A -- REPLACE POWER STEERING ECU