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

DTC 71 STEERING ANGLE SENSOR COMMUNICATION

DTC DETECTING CONDITION:

Defective steering angle sensor

TROUBLE SYMPTOM:

• ABS does not operate.

• VDC does not operate.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK STEERING ANGLE SENSOR POWER SUPPLY.

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?

2.CHECK VDCCM OUTPUT VOLTAGE.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from VDCCM.

3) Remove the VDCCM connector cover.

4) Connect the connector to the VDCCM.

5) Turn the ignition switch to ON.

6) Measure the voltage between VDCCM and chassis ground.

Connector & terminal

(B310) No. 27 (+) — Chassis ground (−):

Is the voltage 10 — 15 V?

Repair the harness between yaw rate sensor and VDCCM.

3.CHECK POOR CONTACT OF CONNECTOR.

Is there poor contact in the yaw rate sensor connector?

Repair or replace the VDCCM connector.

Replace the VDCCM.

4.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 the steering angle sensor ground harness.

5.CHECK STEERING ANGLE SENSOR HARNESS.

1) Connect the connector to the steering angle sensor.

2) Disconnect the connector from VDCCM.

3) Measure the resistance between the VDCCM connector terminals.

Connector & terminal

(B310) No. 81 — No. 83:

Is the resistance 120±6 Ω?

Repair the harness between the steering angle sensor and VDCCM.

6.CHECK STEERING ANGLE SENSOR.

1) Turn the ignition switch to OFF.

2) Connect all connectors.

3) Erase the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

In the current diagnosis, is the same DTC displayed again?

7.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Temporary poor contact occurs.

8.CHECK VDCCM.

1) Turn the ignition switch to OFF.

2) Replace the steering angle sensor.

3) Erase the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

In the current diagnosis, is the same DTC displayed again?

Replace the VDCCM.

9.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Original steering angle sensor malfunction