Subaru Crosstrek Service Manual: Dtc c0049 cruise controller abnormal

DTC detecting condition:

Faulty signal is received from the stereo camera.

Trouble symptom:

• VDC may 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 C0049 CRUISE CONTROLLER ABNORMAL">Go to Step 2.

2.CHECK POOR CONTACT OF CONNECTORS.

Is there poor contact of the stereo camera connector?

Repair the connector.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0049 CRUISE CONTROLLER ABNORMAL">Go to Step 3.

3.CHECK STEREO CAMERA.

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

Is the check result OK?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0049 CRUISE CONTROLLER ABNORMAL">Go to Step 4.

Perform the diagnosis according to DTC. Diagnostic Procedure with Diagnostic Trouble Code (DTC)">

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)">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0049 CRUISE CONTROLLER ABNORMAL">Go to Step 5.

5.CHECK DETECTION OF OTHER DTCS FOR VDC.

Read Diagnostic Trouble Code (DTC)">

Is any other DTC displayed?

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

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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Caution
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