Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
B2A16Immobilizer Key Collation Diagnosis
B2A16Immobilizer Key Collation Diagnosis
Manufacturer communications
14Original wording in English
SEAT COVER UNLIMITED, SUBARU
This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).
SUBARU
This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
SUBARU
This Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).
SEAT COVER UNLIMITED, SUBARU
This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
Check vehicle applicability
241A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Seat Cover Unlimited | SEAT COVER UNLIMITED ↗ | Year unknown |
| Subaru | 64669AC260MU ↗ | Year unknown |
| Subaru | 64669AC360MU ↗ | Year unknown |
| Subaru | 64669AC370MU ↗ | Year unknown |
| Subaru | 64669AC380MU ↗ | Year unknown |
| Subaru | 64669AC390MU ↗ | Year unknown |
| Subaru | ASCENT ↗ | 2026 |
| Subaru | ASCENT ↗ | 2025 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.