DTC C1411: Electrical Control Module

DTC Detecting condition: 

• Judge as malfunction when ECM internal malfunction is detected.
• This malfunction is stored if the electronic parking brake does not operate.

Trouble symptom: 

• ABS does not operate sometimes.
• EBD does not operate sometimes.
• VDC does not operate.
• AVH does not function.
• EyeSight does not operate. (Models with EyeSight)

Wiring diagram: 

Vehicle dynamics control system Ref. to WIRING SYSTEM>VEHICLE DYNAMICS CONTROL SYSTEM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK VDC Control Module & H/U GROUND CIRCUIT (CHECK FOR OPEN CIRCUIT). 
   1. Turn the ignition switch to OFF.
   2. Disconnect the connector from the VDC Control Module & H/U.
   3. Measure the resistance between VDC Control Module & H/U and chassis ground.

      Connector & terminal 

      (B310) No. 46 - Chassis ground:

      Is the resistance less than 10 Ω?

      Yes:  Go to  2.

      No:  Repair the VDC Control Module & H/U ground harness.

2. CHECK POOR CONTACT OF CONNECTORS. 

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

   Yes:  Repair the connector.

   No:  Go to  3.

3. CHECK CAUSE OF SIGNAL NOISE. 

   Are the radio wave devices and electronic components installed correctly?

   Yes:  Go to  4.

   No:  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 VDC Control Module?

   Yes:  Install the noise sources apart from sensor harness and VDC Control Module.

   No:  Go to  5.

5. CHECK VDC Control Module & H/U. 
   1. Connect all connectors.
   2. Using the Subaru Select Monitor, perform the clear memory. Ref. to COMMON (DIAG)>CLEAR MEMORY .
   3. Execute the inspection mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>INSPECTION MODE .
   4. Read the DTC using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

      Is the same DTC displayed?

      Yes:  Replace the VDC Control Module & H/U. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDC Control Module & H/U) .

      No:  Go to  6.

6. CHECK DETECTION OF OTHER DTCS FOR VDC. 

   Read the DTC using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is any other DTC displayed?

   Yes:  Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

   No:  Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.