Subaru Crosstrek Service Manual: Dtc c1411 electrical control module

DTC detecting condition:

Defective VDCCM

Trouble symptom:

• ABS does not operate.

• EBD does not operate.

• VDC does not operate.

• Hill start assist does not operate.

1.CHECK VDCCM&H/U GROUND CIRCUIT (CHECK FOR OPEN CIRCUIT).

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the VDCCM&H/U.

3) Measure the resistance between VDCCM&H/U and chassis ground.

Connector & terminal

(B310) No. 38 — Chassis ground:

Is the resistance less than 10 ??

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1411 ELECTRICAL CONTROL MODULE">Go to Step 2.

Repair the VDCCM&H/U ground harness.

2.CHECK POOR CONTACT OF CONNECTORS.

Is there poor contact of the connector between the battery, ignition switch and VDCCM&H/U?

Repair the connector.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1411 ELECTRICAL CONTROL MODULE">Go to Step 3.

3.CHECK CAUSE OF SIGNAL NOISE.

Are the radio wave devices and electronic components installed correctly?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1411 ELECTRICAL CONTROL MODULE">Go to Step 4.

Install the radio wave devices and electronic components properly.

4.CHECK CAUSE OF SIGNAL NOISE.

Is there a noise source (such as an antenna) installed near the sensor harness and VDCCM?

Install the noise sources apart from sensor harness and VDCCM.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1411 ELECTRICAL CONTROL MODULE">Go to Step 5.

5.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 only. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > REPLACEMENT">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1411 ELECTRICAL CONTROL MODULE">Go to Step 6.

6.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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