DTC C0047 Can Communication: Wiring Diagram

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: CAN Communication Line Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 CHECK LAN SYSTEM. Perform the diagnosis for LAN system. < Ref. to OPERATION , Read Diagnostic Trouble Code (DTC). >	Is there any fault in LAN system?	Perform the diagnosis according to DTC for LAN system. < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Go to step 2 .
2 CHECK POOR CONTACT OF CONNECTORS.	Is there poor contact of VDCCM&H/U connector?	Repair the connector.	Go to step 3 .
3 CHECK OUTPUT OF STEERING ANGLE SENSOR WITH SUBARU SELECT MONITOR. Select "Current Data Display & Save" on the Subaru Select Monitor. Check the steering angle sensor output.	Does the output signal change?	Go to step 4.	Check output of the steering angle sensor. < Ref. to DTC C0071 STEER ANGLE SENSOR OP , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
4 CHECK OUTPUT OF YAW RATE & G SENSOR WITH SUBARU SELECT MONITOR. Select "Current Data Display & Save" on the Subaru Select Monitor. Check the yaw rate & G sensor output.	Does the output signal change?	Go to step 5.	Check output of the yaw rate & G sensor. < Ref. to DTC C0072 YAW RATE SENSOR COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
5 CHECK VDCCM&H/U. Connect all connectors. Clear the memory. < Ref. to CLEAR MEMORY MODE . > Perform the Inspection Mode. < Ref. to INSPECTION MODE . > Read the DTC.	Is the same DTC displayed?	Replace the VDCCM only. < Ref. to REPLACEMENT , VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). >	Temporary poor contact occurs.