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.
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HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTINFOTAINMENT SYSTEM (DIAGNOSTICS)
2016 Subaru Legacy 2.5i
Infotainment System (Diagnostics)
2016 Subaru Legacy 2.5iSECTION Infotainment System (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Subaru Select Monitor
- Read Diagnostic Trouble Code (DTC)
- Clear Memory Mode
- Inspection Mode
- Read Current Data
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC B2240 Can Communication (Audio) Stuck
- DTC B2241 Can Communication
- DTC B2242 UART Communication
- DTC B2243 SD Card Communication
- DTC B2244 Amplifier Communication
- DTC B2247 Cd Mechanical
- DTC B2249 BLUETOOTH Module
- DTC B224A Backup Camera
- DTC U0074 Control Module Communication Bus "Body-Can" Off
- DTC U0100 Lost Communication With ECM/Pcm "A"
- 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 U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0164 Lost Communication With HVAC Control Module
- DTC U0167 Lost Communication With Immobilizer Control Module
- DTC U0327 Software Incompatibility With Vehicle Security Control Module
- DTC U1140 Lost Communication With Body Control Module Body-Can
- DTC U1232 Lost Communication With Rear/Side Radar Control Module
- Diagnostics with Phenomenon
- List
- Inspection
- Power Will Not Turn On
- The Screen Freezes And Does Not Accept Any Operation Entry
- The Screen Is Blacked Out, Or The Screen Is Not Displayed
- System Is Reset
- CDS Cannot Be Played Back
- Sound Does Not Come Out From The Speaker
- BLUETOOTH Connection Cannot Be Established
- BLUETOOTH Does Not Operate
- Radio Volume Is Low Or Interference Noise Occurs
- Wrong Location Of Vehicle, No GPS Reception
- Check Connection Between Smartphone And Unit
- Check SUBARU STARLINK Service
- Service Diagnostics Mode
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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.