Possible causes

– Faulty
Key

- Faulty transponder key amplifier

- Faulty transponder key ECU assembly
– transponder key amplifier wire harness

When is the code detected?

No communication

B2796 LEXUS Description

This code is stored in the memory when a key that does not have a transponder chip is inserted or if communication between the key and transponder key ECU assy is impossible.

LEXUS Technical Service Bulletins for B2796 code