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.
2016 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE
Entry Start System Entry System (Keyless Entry)
- Entry & Start System (Entry Function)
- Precautions
- Parts Location
- Circuit Figure
- Description Of Functions
- How To Proceed With Troubleshooting
- Operation Check
- Customize Parameters
- Problem Symptoms Table
- ECM Terminal Arrangement
- Diagnosis System
- DTC Check/Clear
- Current Data Display & Save/System Operation Check Mode
- Diagnostic Trouble Code Chart
- 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
- The Exterior Alarm And Answer-Back Buzzer Of The Smart Entry System Do Not Go Off
- Neither Smart Lock Nor Smart Unlock Operation Works On Any Of The Doors (Wireless Function Does Not Work Either)
- Neither Smart Lock Nor Smart Unlock Operation Works From Any Of The Doors (But The Wireless Function Works)
- Smart Unlock Operation Does Not Work From The Driver's Door (But Smart Lock Operation Works)
- Smart Unlock Operation Does Not Work On The Passenger's Door (But Smart Lock Operation Works)
- Neither Smart Lock Nor Smart Unlock Operation Works On The Driver's Door
- Neither Smart Lock Nor Smart Unlock Operation Works On The Passenger's Door
- Smart Lock Operation Does Not Work On The Driver's Door (But Smart Unlock Operation Works)
- Smart Lock Operation Does Not Work On The Passenger's Door (But Smart Unlock Operation Works)
- Interior collation is NG
- Smart Trunk Open Operation Does Not Work (When The Transmitter Is Located Outside Trunk)
- The Smart Key Lockout Protection Function For The Trunk Does Not Work (Trunk Does Not Open)
- The Internal Alarm Of The Smart Entry System Does Not Go Off
Factory Service Tools
Use the Manual With the Right Hardware
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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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