What causes B2796 on a Toyota?

Open or short on the immobilizer bus Faulty immobilizer component Corroded connector Failed certification ECU Low system voltage

How do I fix B2796 on a Toyota?

Confirm the code with a scan tool Inspect and reseat the immobilizer connectors Test the communication line for opens and shorts Check component power and ground Replace a component only after tests fail

B2796 No communication in the immobilizer system

Q: What does B2796 mean on a Toyota?

B2796. No communication in the immobilizer system. The certification ECU cannot talk to the engine immobilizer components. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B2796 mean on a Toyota?

B2796. No communication in the immobilizer system. The certification ECU cannot talk to the engine immobilizer components. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B2796

Open or short on the immobilizer bus
Faulty immobilizer component
Corroded connector
Failed certification ECU
Low system voltage

How to fix B2796

Confirm the code with a scan tool
Inspect and reseat the immobilizer connectors
Test the communication line for opens and shorts
Check component power and ground
Replace a component only after tests fail