Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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.
Wiring diagram:
Vehicle dynamics control system Refer to WIRING SYSTEM>Vehicle Dynamics Control System .
- CHECK VDCCM&H/U GROUND CIRCUIT (CHECK FOR OPEN CIRCUIT)
.
- Turn the ignition switch to OFF.
- Disconnect the connector from the VDCCM&H/U.
- Measure the resistance between VDCCM&H/U and chassis ground.
Connector & terminal
(B66) No. 46 - Chassis ground:
Is the resistance less than 10 Ω?
Yes : Go to 2.
No : Repair the VDCCM&H/U ground harness.
- CHECK POOR CONTACT OF CONNECTORS
.
Is there poor contact of the connector between the battery, ignition switch and VDCCM&H/U?
Yes : Repair the connector.
No : Go to 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.
- CHECK CAUSE OF SIGNAL NOISE
.
Is there a noise source (such as an antenna) installed near the sensor harness and VDCCM?
Yes : Install the noise sources apart from sensor harness and VDCCM.
No : Go to 5.
- CHECK VDCCM&H/U
.
- Connect all connectors.
- Using the Subaru Select Monitor, perform the clear memory of [Brake Control]. Refer to COMMON (DIAG)>CLEAR MEMORY .
- Execute the inspection mode. Refer to BRAKE CONTROL (DIAGNOSTICS)>Inspection Mode .
- Read the DTC of [Brake Control] using the Subaru Select Monitor. Refer to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is the same DTC displayed?
Yes : Replace the VDCCM&H/U. Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) .
No : Go to 6.
- CHECK DETECTION OF OTHER DTCS FOR VDC
.
Read the DTC of [Brake Control] using the Subaru Select Monitor. Refer to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is any other DTC displayed?
Yes : Perform the diagnosis according to the DTC. Refer 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.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.