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.
2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Driver Monitor (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Inspection Mode
- Warning Light Illumination Pattern
- Diagnostic Procedure for Subaru Select Monitor Communication
- Data Monitor
- Active Test
- Customize
- Work Support
- Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC B112A: Driver Monitoring Communication 1
- DTC B112B: Driver Monitoring Communication 2
- DTC B112C: Driver Monitoring Communication 3
- DTC B112D: Driver Monitoring Communication 4
- DTC B112E: Driver Monitoring System Internal Communication
- DTC B1140: Driver Monitoring Internal Failure 1
- DTC B1141: Driver Monitoring Internal Failure 2
- DTC B118A: Driver Monitoring Initialization 1
- DTC B118B: Driver Monitoring Initialization 2
- DTC B118C: Driver Monitoring Initialization 3
- DTC B118D: Driver Monitoring Initialization 4
- DTC B118E: Driver Monitoring Initialization 5
- DTC B118F: Driver Monitoring Initialization 6
- DTC B11E5: Driver Monitoring Memory 1
- DTC B11E6: Driver Monitoring Memory 2
- DTC B11E7: Driver Monitoring Memory 3
- DTC B11E8: Driver Monitoring Memory 4
- DTC B11E9: Driver Monitoring Memory 5
- DTC B11EA: Driver Monitoring Memory 6
- DTC U0074: Control Module Communication Bus "Body-Can" Off
- DTC U0101: Lost Communication With TCM
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0128: Lost Communication With Park Brake Control Module
- DTC U0140: Lost Communication With Body Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0162: Lost Communication With Audio Visual Navigation Display Module
- DTC U0402: Invalid Data Received From TCM
- DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0417: Invalid Data Received From Park Brake Control Module
- DTC U0422: Invalid Data Received From Body Control Module
- DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U0463: Invalid Data Received From Navigation Display Module
- DTC U1120: Lost Communication With AUTOSTART Stop Control Module
- DTC U1146: Lost Communication With Gateway "A" Body-Can
- DTC U1283: Lost Communication With Eyesight SA-Bus
- DTC U1469: Invalid Data Received From AUTOSTART Stop Control Module
- DTC U1584: Invalid Data Received From Eyesight SA-Bus
- Cancel Code
- Diagnostics with Phenomenon
- List
- Inspection
- Driver Monitoring System Temporary Stop Indicator Light Stays Illuminated (Does Not Return From The Temporary Stop Status)
- Driver Monitoring System Temporary Stop Indicator Light Was Illuminated In The Past (Temporary Stop Occurred Frequently)
- Operation Indicator Light Does Not Switch To Off Indicator Light Even After Pressing The Driver Monitoring System Off Switch
- Inattention Alarm Sounds Frequently (Operates Improperly)
- Light-Drowsiness Alarm Operates Improperly
- Heavy-Drowsiness Alarm Operates Improperly
- Dozing Alarm Operates Improperly
- User Registration Is Not Possible
- User Recognition Fails
- Misjudgment Occurs In User Recognition (Recognized As A Different Person)
- User Recognition Does Not Begin
- User Information Linkage Does Not Operate Normally
- Each Warning System Does Not Operate
Factory Service Tools
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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.
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