C1528

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1528: Motor Rotation Angle Sensor Malfunction
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 assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK CONNECTORS

(a) Check the connection of the power steering ECU assembly and power steering gear assembly connectors.

(b) Visually inspect the terminals of the power steering ECU assembly and power steering gear assembly connectors.

Result:

B -- CONNECT CONNECTORS CORRECTLY

C -- REPLACE POWER STEERING ECU ASSEMBLY Removal

D -- REPLACE POWER STEERING GEAR ASSEMBLY Removal
A -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - MOTOR ROTATION ANGLE SENSOR)

(a) Disconnect the C2 connector from the motor rotation angle sensor (power steering gear assembly).

(b) Disconnect the C4 connector from the power steering ECU assembly.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. INSPECT POWER STEERING GEAR ASSEMBLY (MOTOR ROTATION ANGLE SENSOR)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

NOTICE:
If replacing the power steering gear assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Programming and Relearning.

NG -- REPLACE POWER STEERING GEAR ASSEMBLY Removal
OK -- Continue to next step.

4. REPLACE POWER STEERING ECU ASSEMBLY

(a) Replace the power steering ECU assembly Removal.

NEXT -- Continue to next step.

5. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

(a) Initialize the rotation angle sensor value and calibrate the torque sensor zero point Programming and Relearning.

NEXT -- Continue to next step.

6. RECONFIRM DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result: