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.
2015 Subaru Outback 3.6R LimitedFACTORY OEM SERVICE PROCEDURE
Infotainment System DTCS
INFOTAINMENT SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Item | Description |
|---|---|---|
| B2240 | Control Module Communication Stick | <Ref. to DTC B2240 CONTROL MODULE COMMUNICATION STICK , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2241 | CAN Communication | <Ref. to DTC B2241 CAN COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2242 | UART Communication | <Ref. to DTC B2242 UART COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2243 | SD Card Communication | <Ref. to DTC B2243 SD CARD COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2244 | Amplifier Communication | <Ref. to DTC B2244 AMPLIFIER COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2247 | CD Mechanical | <Ref. to DTC B2247 CD MECHANICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B2249 | Bluetooth Module | <Ref. to DTC B2249 BLUETOOTH MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B224A | Camera Image | <Ref. to DTC B224A CAMERA IMAGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0074 | Control Module Communication Bus "Body-CAN" Off | <Ref. to DTC U0074 CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0100 | Lost Communication With ECM/PCM "A" | <Ref. to DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0101 | Lost Communication With TCM | <Ref. to DTC U0101 LOST COMMUNICATION WITH TCM , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0122 | Lost Communication With Vehicle Dynamics Control Module | <Ref. to DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0128 | Lost Communication With Park Brake Control Module | <Ref. to DTC U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | <Ref. to DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0164 | Lost Communication With HVAC Control Module | <Ref. to DTC U0164 LOST COMMUNICATION WITH HVAC CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0167 | Lost Communication With Immobilizer Control Module | <Ref. to DTC U0167 LOST COMMUNICATION WITH IMMOBILIZER CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0327 | Software Incompatibility With Vehicle Security Control Module | <Ref. to DTC U0327 SOFTWARE INCOMPATIBILITY WITH VEHICLE SECURITY CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U1140 | Lost Communication With Body Control Module Body-CAN | <Ref. to DTC U1140 LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U1232 | Lost Communication With Rear/Side Radar Control Module | <Ref. to DTC U1232 LOST COMMUNICATION WITH REAR/SIDE RADAR CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
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.