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

DTC 71 STEERING ANGLE SENSOR MALFUNCTION

DTC DETECTING CONDITION:

Defective steering angle sensor

TROUBLE SYMPTOM:

• VDC does not operate.

• ABS does not operate.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK STEERING WHEEL.

1) Drive the vehicle on a flat road.

2) Stop the vehicle in a straight forward direction.

3) Check the steering wheel angle.

Is the angle from the center of steering wheel less than 5°?

Center the steering wheel.

2.CHECK OUTPUT OF STEERING ANGLE SENSOR USING SUBARU SELECT MONITOR.

1) Select {Current Data Display & Save} in Subaru Select Monitor.

2) Read the steering sensor output on Subaru Select Monitor display.

Does the output of the steering sensor change on the monitor when the steering wheel turns either way?

Replace the steering angle sensor.

3.CHECK DRIVING ROAD.

Interview whether the vehicle was driven on the road with banks or sandy surface.

Was the vehicle driven on the road with banks or sandy surface?

If driven on the road with banks or sandy surface, the VDCCM stores the DTC occasionally.

4.CHECK VDCCM.

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?

Replace the VDCCM.

5.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Temporary poor contact occurs.