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

DTC C0073 EXCESSIVE LATERAL G SENSOR SIGNAL

DTC DETECTING CONDITION:

Lateral G sensor malfunction

TROUBLE SYMPTOM:

VDC does not operate.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK YAW RATE & LATERAL G SENSOR INSTALLATION.

Is the yaw rate & lateral G sensor installation bolt tightened to 7.5 N·m (0.76 kgf-m, 5.5 ft-lb)?

Tighten the yaw rate & lateral G sensor installation bolt.

2.CHECK LATERAL G SENSOR OUTPUT.

1) Park the vehicle on a level surface.

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

3) Read the lateral G sensor output displayed on screen.

Is the indicated reading on the monitor display −1.5 — 1.5 m/s2?

Replace the yaw rate & lateral G sensor.

3.CHECK LATERAL G SENSOR OUTPUT.

1) Turn the ignition switch to OFF.

2) Remove the yaw rate & lateral G sensors from vehicle.

3) Turn the ignition switch to ON, and select the {Current Data Display & Save} in Subaru Select Monitor.

4) Read the lateral G sensor output displayed on screen.

When the yaw rate & lateral G sensor is inclined 90° to the right, is the indicated value 6.8 — 12.8 m/s2?

Replace the yaw rate & lateral G sensor.

4.CHECK LATERAL G SENSOR.

Read the lateral G sensor output displayed on screen.

When the yaw rate & lateral G sensor is inclined 90° to the left, is the indicated value −6.8 — −12.8 m/s2?

Replace the yaw rate & lateral G sensor.

5.CHECK POOR CONTACT OF CONNECTORS.

Turn the ignition switch to OFF.

Is there poor contact of connector between VDCCM&H/U and yaw rate & lateral G sensor?

Repair the connector.

6.CHECK VDCCM&H/U.

1) Connect all connectors.

2) Clear the memory.

3) Perform the Inspection Mode.

4) Read the DTC.

Is the same DTC displayed?

Replace the VDCCM only.

7.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.