What does code B2796 mean on Lexus vehicles?
The ECM cannot communicate with the immobilizer system, preventing engine start authorization.
OBD-II Code Lexus
B2796 — Lexus — No Communication in Immobilizer System
The ECM cannot communicate with the immobilizer system, preventing engine start authorization.
Common symptoms
- No start condition
Possible causes
- Faulty antenna coil
- immobilizer ECU failure
- wiring issue
Initial recommendation
Diagnose immobilizer communication lines and antenna coil.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Lexus code B2796 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands