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 MANUALSSUBARU2014IMPREZA SPORT LIMITEDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSKEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)
2014 Subaru Impreza Sport Limited
Keyless Access With Push Button Start System (Diagnostics)
2014 Subaru Impreza Sport LimitedSECTION Keyless Access With Push Button Start 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)
- Read Current Data
- Clear Memory Mode
- Keyless Access System Check
- System Operation Check Mode
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC U0073: Control Module Communication Bus 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 U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0401: Invalid Data Received From ECM/Pcm "A"
- DTC U0422: Invalid Data Received From Body Control Module
- DTC U1120: Lost Communication With AUTOSTART Stop Control Module
- DTC B1242: Wireless Tuner Abnormal
- DTC B2271: IGN Fuse Blown Or IGN Circuit Abnormal
- DTC B2274: Acc Monitor
- DTC B2275: STSW Circuit Abnormal
- DTC B2276: ACCR Signal Abnormal
- DTC B2277: Submerging Circuit Abnormal
- DTC B2282: Vehicle Speed Signal Abnormal
- DTC B2283: Vehicle Speed Sensor Fault Detection
- DTC B2284: Brake Signal (Cable-Information Does Not Match To Bean-Information)
- DTC B2285: Steering Lock Position Signal Abnormal
- DTC B2286: Driving Possible Signal Abnormal
- DTC B228A: Sub-Travel Possible Signal Abnormal
- DTC B2779: Remote Control Engine Starter Communication Collation NG
- DTC B2781: Steering Lock Ecu Open/Short
- DTC B2782: Steering Lock Power Supply Circuit Abnormal (Smart Ecu-Side Abnormal)
- DTC B2784: Antenna Coil Fault
- DTC B2785: Lin Communication Error
- DTC B2786: No Response From Steering Lock Ecu
- DTC B2788: IGN1 Input Abnormal
- DTC B2789: Id Code Box No Response
- DTC B278A: Abnormal Immobilizer Power Supply
- DTC B278D: Id Code Box Recognition Judgment Abnormal
- DTC B2790: Id Code Box Abnormal (EEPROM Abnormal)
- DTC B27A1: Driver Side External Antenna Output Stage Open
- DTC B27A2: Passenger Side External Antenna Output Stage Open
- DTC B27A5: Front Internal Antenna Output Stage Open
- DTC B27A6: Rear Internal Antenna Output Stage Open
- DTC B27A7: Trunk/Rear Gate Internal Antenna Output Stage Open
- DTC B27A8: Trunk/Rear Gate External Antenna Output Stage Open
- DTC B1571: Reference Code Incompatibility
- DTC B1572: IMM Circuit Failure (Except Antenna Circuit)
- DTC B1576: EGI Control Module EEPROM
- DTC B1577: IMM Control Module EEPROM
- General Diagnostic Table
- Diagnostics with Phenomenon
- Inspection
- Keyless Access Lock/Unlock Cannot Be Performed From Any Of The Doors
- Cannot Lock With Keyless Access From The Driver's Door
- Cannot Lock/Unlock With Keyless Access From The Driver's Door
- Cannot Unlock With Keyless Access From The Driver's Door
- Cannot Lock With Keyless Access From The Passenger's Door
- Cannot Lock/Unlock With Keyless Access From The Passenger's Door
- Cannot Unlock With Keyless Access From The Passenger's Door
- The Keyless Access Passenger Room Buzzer Does Not Sound
- The Keyless Access External Buzzer Does Not Beep
- Internal Collation Does Not Function
- Can Not Unlock When Using The Rear Gate Opener Button
- Can Not Lock When Using The Rear Lock Button
- The Steering Lock Is Not Released
- The Steering Lock Does Not Operate
- Power Will Not Turn On (Both Accessory And Ignition)
- Power Will Not Turn On (Accessory Does Not Turn On, But Ignition Turns On)
- Power Will Not Turn On (Accessory Turns On, But Ignition Does Not Turn On)
- Engine Does Not Start
- Inspection
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.