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 DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTTELEMATICS SYSTEM (DIAGNOSTICS)
2016 Subaru Legacy 2.5i
Telematics System (Diagnostics)
2016 Subaru Legacy 2.5iSECTION Telematics System (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Subaru Select Monitor
- Read Current Data
- Diagnostic Code(s) Display
- Clear Memory Mode
- Inspection Mode
- System Operation Check Mode
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC U0073 Control Module Communication Bus Off
- 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 U0140 Lost Communication With Body Control Module
- DTC U0151 Lost Communication With Restraints Control Module
- DTC U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0401 Invalid Data Received From ECM/Pcm "A"
- DTC U0402 Invalid Data Received From TCM
- DTC U0416 Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0452 Invalid Data Received From Restraints Control Module
- DTC U1235 LOST COMMUNICATION WITH EyeSight
- DTC B2A00 VIN Reading
- DTC B2A01 LTE1 Antenna Circuit
- DTC B2A02 LTE2 Antenna Circuit
- DTC B2A03 GPS Antenna Circuit
- DTC B2A04 Mic Circuit
- DTC B2A05 Left Speaker/Audio Circuit
- DTC B2A06 Right Speaker/Audio Circuit
- DTC B2A07 Backup Battery Charge System Performance
- DTC B2A08 SOS Button Circuit
- DTC B2A09 I-Call Button Circuit
- DTC B2A0A Red Led Circuit
- DTC B2A0B Green Led Circuit
- DTC B2A0C DCM Internal Fault
- DTC B2A0D Airbag Signal
- DTC B2A0E Mute Line Circuit
- DTC B2A0F Backup Battery Degradation
- DTC B2A10 Battery Voltage High
- Diagnostics with Phenomenon
- List
- Inspection
- The System Does Not Notify The Telematics Service Provider Center Automatically After Collision
- The System Does Not Notify The Center Even If The SOS Button Is Pressed
- The System Places An SOS Call Unintentionally During Driving
- The System Places An I-Call Unintentionally During Driving
- The System Does Not Notify The Center Even If The I-Button Is Pressed Upon Vehicle Malfunction
- Remote Vehicle Locator Cannot Locate The Vehicle
- Remote Vehicle Locator Indicates An Incorrect Location For The Vehicle
- Remote Door Lock Does Not Lock The Doors Of The Vehicle
- The Doors Lock Unintentionally
- The Doors Unlock Unintentionally
- Remote Horn & Hazard Lights Do Not Operate Upon Request
- When The Vehicle Security Alarm Is Activated, Notification Is Not Sent
- When A Malfunction Indicator Light/Warning Light Is Lit, Notification Is Not Sent
- Maintenance Notifications Are Not Sent
- The Led Does Not Display The Status. (Led Malfunction)
- Phone Conversation Is Not Possible. (The Microphone Does Not Respond To A Voice. No Sound Is Heard From The Speaker.)
RENDER: 1.0x
NO RELATED
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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.