Subaru Crosstrek Service Manual: Dtc c0047 can communication

DTC DETECTING CONDITION:

CAN communication line circuit is open or shorted.

TROUBLE SYMPTOM:

• ABS does not operate.

• VDC does not operate.

• EyeSight does not operate.

1.CHECK LAN SYSTEM.

Perform the diagnosis for LAN system. Basic Diagnostic Procedure">

Is there any fault in LAN system?

Perform the diagnosis according to DTC for LAN system. List of Diagnostic Trouble Code (DTC)">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0047 CAN COMMUNICATION">Go to Step 2.

2.CHECK POOR CONTACT OF CONNECTORS.

Is there poor contact of VDCCM&H/U connector?

Repair the connector.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0047 CAN COMMUNICATION">Go to Step 3.

3.CHECK OUTPUT OF STEERING ANGLE SENSOR WITH SUBARU SELECT MONITOR.

1) Using the Subaru Select Monitor, select “Data monitor”. Subaru Select Monitor > OPERATION">

2) Check the «Steer Angle Sensor Op».

Does «Steer Angle Sensor Op» change?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0047 CAN COMMUNICATION">Go to Step 4.

Check output of the steering angle sensor. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0071 STEER ANGLE SENSOR OP">

4.CHECK VDCCM&H/U.

1) Connect all connectors.

2) Perform the Clear Memory Mode. Clear Memory Mode">

3) Perform the Inspection Mode. Inspection Mode">

4) Read the DTC. Read Diagnostic Trouble Code (DTC)">

Is the same DTC displayed?

Replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.

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Other materials:

Climate control panel, audio panel, instrument panel, console panel, and switches
Use a soft, damp cloth to clean the climate control panel, audio equipment, instrument panel, center console, combination meter panel, and switches. CAUTION Do not use organic solvents such as paint thinners or fuel, or strong cleaning agents that contain those solvents. Doing so cou ...

Removal
DIFFERENTIALS > Rear Differential (T-type)REMOVAL1. Shift the select lever or gear shift lever to neutral.2. Release the parking brake.3. Disconnect the ground cable from battery.4. Lift up the vehicle.5. Remove the rear wheels.6. Drain differential gear oil. Differential Gear Oil > REPLACEME ...

Installation
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Torque Converter AssemblyINSTALLATION1. Install the O-ring to the input shaft.NOTE:• Use new O-rings.• Apply CVTF to the O-ring.2. While holding the torque converter assembly by hand, carefully install it into the torque converter case.NOTE: ...