B2797 – Lexus DTC

Lexus DTC B2797 – Communication Malfunction No. 1 (Immobilizer System)

DTC B2797 meaning on Lexus

DTC B2797 on a Lexus indicates a communication malfunction within the Immobilizer System, specifically related to Communication No. 1.

Lexus DTC B2797 symptoms

Symptoms of DTC B2797 may include:

• Engine not starting
• Immobilizer warning light illuminated on the dashboard
• Key fob not being recognized

Lexus DTC B2797 causes

Common causes of DTC B2797 include:

• Issues with the immobilizer system wiring
• Defective immobilizer system components
• Faulty communication between the immobilizer system and other vehicle modules

Lexus DTC B2797 seriousness

DTC B2797 is a serious issue as it can prevent the vehicle from starting, leading to inconvenience and potential safety concerns.

How to diagnose DTC B2797 on Lexus

To diagnose DTC B2797 on a Lexus, a mechanic would typically:

1. Use a diagnostic scanner to retrieve the specific fault codes
2. Inspect the wiring and connections related to the immobilizer system
3. Perform communication tests between the immobilizer system and other vehicle modules

How to fix DTC B2797 on Lexus

To fix DTC B2797 on a Lexus, the following steps may be taken:

1. Repair any damaged wiring or connections in the immobilizer system
2. Replace any faulty immobilizer system components
3. Reset the immobilizer system and reprogram keys if necessary

How to erase DTC B2797 on Lexus

DTC B2797 can be erased on a Lexus by:

1. Using a diagnostic scanner to clear the fault codes
2. Verifying that the issue has been resolved by performing a system check