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:

Installation
CLUTCH SYSTEM > Clutch Pipe and HoseINSTALLATIONInstall in the reverse order of removal.NOTE:Bleed air from brake fluid. Clutch Fluid Air Bleeding">Tightening torque:T1: 15 N·m (1.5 kgf-m, 11.1 ft-lb)T2: 18 N·m (1.8 kgf-m, 13.3 ft-lb)T3: 25 N·m (2.5 kgf-m, 18.4 ft-lb ...

Inspection
CLUTCH SYSTEM > Clutch SwitchINSPECTION1. CLUTCH START SWITCH1. Perform the following inspections. If the clutch start switch does not operate normally, adjust the switch, and check it again. Clutch Switch > ADJUSTMENT">• Make sure that engine does not start with clutch pedal no ...

Operation
TELEMATICS SYSTEM (DIAGNOSTICS) > Diagnostic Code(s) DisplayOPERATION1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. On «Select System» display ...