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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Vehicle Dynamics Control (VDC) System (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC C0073 Excessive Lateral G Sensor Signal >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK YAW RATE & G SENSOR INSTALLATION.  Is the yaw rate & G sensor installation bolt tightened to 7.5 N.m (0.76 kgf-m, 5.5 ft-lb)? Go to step . Tighten the yaw rate & G sensor attachment bolt.
2 CHECK OUTPUT OF LATERAL G SENSOR WITH SUBARU SELECT MONITOR. 
  1. Park the vehicle on a level surface.
  2. Select "Current Data Display & Save" on the 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 ? Go to step . Replace the yaw rate & G sensor. < Refer to YAW RATE AND G SENSOR . >
3 CHECK OUTPUT OF LATERAL G SENSOR WITH SUBARU SELECT MONITOR. 
  1. Turn the ignition switch to OFF.
  2. Remove the yaw rate & G sensor 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 & G sensor is inclined 90° to the right, is the indicated value 6.8 - 12.8 m/s2 ? Go to step . Replace the yaw rate & G sensor. < Refer to YAW RATE AND G SENSOR . >
4 CHECK LATERAL G SENSOR WITH SUBARU SELECT MONITOR. 
Read the lateral G sensor output displayed on screen.
When the yaw rate & G sensor is inclined 90° to the left, is the indicated value -6.8 - -12.8 m/s2 ? Go to step . Replace the yaw rate & G sensor. < Refer to YAW RATE AND 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 & G sensor? Repair the connector. Go to step .
6 CHECK VDCCM&H/U. 
  1. Connect all connectors.
  2. Clear the memory. < Refer to CLEAR MEMORY MODE . >
  3. Perform the Inspection Mode. < Refer to INSPECTION MODE . >
  4. Read the DTC.
Is the same DTC displayed? Replace the VDCCM only. < Refer to REPLACEMENT , VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). > Go to step .
7 CHECK OTHER DTC DETECTION.  Is any other DTC displayed? Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > Temporary poor contact occurs.