C1512

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1511: Torque Sensor Circuit Malfunction

DTC C1511 - Torque Sensor Circuit Malfunction

DTC C1512 - Torque Sensor Circuit Malfunction

DTC 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 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.
Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT POWER STEERING LINK ASSEMBLY (TORQUE SENSOR)





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





NOTICE:

- If replacing the power steering link assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point Electronic Power Steering System.
- If replacing the power steering link assembly, perform VGRS actuator angle initialization and VGRS actuator angle neutral calibration after wheel alignment adjustment Programming and Relearning for INITIALIZATION, Variable Gear Ratio Steering System for CALIBRATION).


NG -- REPLACE POWER STEERING LINK ASSEMBLY
OK -- Continue to next step.
3. REPLACE POWER STEERING ECU ASSEMBLY
(a) Replace the power steering ECU assembly Removal.
NEXT -- Continue to next step.
4. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT
(a) Initialize the rotation angle sensor and calibrate the torque sensor zero point Electronic Power Steering System.
NEXT -- Continue to next step.
5. RECONFIRM DTC
(a) Check for DTCs Electronic Power Steering System.
(b) Is DTC C1511, C1512 or C1513 output?
OK:
DTC is not output.
NOTICE:
- If replacing the power steering link assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point Electronic Power Steering System.
- If replacing the power steering link assembly, perform VGRS actuator angle initialization and VGRS actuator angle neutral calibration after wheel alignment adjustment Programming and Relearning for INITIALIZATION, Variable Gear Ratio Steering System for CALIBRATION).

NG -- REPLACE POWER STEERING LINK ASSEMBLY
OK -- END