What causes B2289 on a Toyota?

Weak or faulty smart key battery Faulty certification ECU Open or short on the key communication line Corroded ECU connector Damaged body harness

How do I fix B2289 on a Toyota?

Confirm the code with a scan tool Try a known good registered key Inspect and reseat the certification ECU connectors Test the key communication line Replace the ECU only after tests fail

B2289 Key collation waiting timeout in the smart key system

Q: What does B2289 mean on a Toyota?

B2289. Key collation waiting timeout in the smart key system. The certification ECU stops hearing the key and the engine may not start. 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 B2289 mean on a Toyota?

B2289. Key collation waiting timeout in the smart key system. The certification ECU stops hearing the key and the engine may not start. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B2289

Weak or faulty smart key battery
Faulty certification ECU
Open or short on the key communication line
Corroded ECU connector
Damaged body harness

How to fix B2289

Confirm the code with a scan tool
Try a known good registered key
Inspect and reseat the certification ECU connectors
Test the key communication line
Replace the ECU only after tests fail