VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC C0071 STEERING ANGLE SENSOR MALFUNCTION

DTC DETECTING CONDITION:

Defective steering angle sensor

TROUBLE SYMPTOM:

• ABS does not operate.

• VDC does not operate.

NOTE:

• Warning light does not illuminate though problem is detected.

• The ABS and VDC operate normally if voltage returns.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK POWER SUPPLY FOR STEERING ANGLE SENSOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from steering angle sensor.

3) Turn the ignition switch to ON.

4) Measure the voltage between the steering angle sensor and chassis ground.

Connector & terminal

(B231) No. 4 (+) — Chassis ground (−):

Is the voltage 10 — 15 V?

Repair the steering angle sensor power supply circuit.

2.CHECK GROUND CIRCUIT OF STEERING ANGLE SENSOR.

Measure the resistance between steering angle sensor and chassis ground.

Connector & terminal

(B231) No. 3 — Chassis ground:

Is the resistance less than 0.5 Ω?

Repair ground circuit in the steering angle sensor.

3.CHECK STEERING ANGLE SENSOR.

1) Turn the ignition switch to OFF.

2) Connect all connectors.

3) Clear the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

Is the same DTC displayed?

4.CHECK VDCCM&H/U.

1) Turn the ignition switch to OFF.

2) Replace the steering angle sensor.

3) Clear the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

Is the same DTC displayed?

Replace the VDCCM only.

5.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.

6.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Original steering angle sensor malfunction