C1513

POWER STEERING: POWER STEERING SYSTEM: C1511-C1513: Torque Sensor Circuit Malfunction

DESCRIPTION

The torque sensor converts rotation torque input to the steering wheel into an electrical signal and sends it to the ECU. Based on this signal, the ECU detects steering effort.

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

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

2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - TORQUE SENSOR)

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

(b) Disconnect the C1 connector from the torque sensor.

(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 (TORQUE SENSOR)

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

Standard resistance:

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
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: