Engine-Codes - Lexus - B1207 LEXUS

B1207 LEXUS Code - Multiplex Communication System

- Code Popularity: 4,963 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B1207 LEXUS Code?

  • Faulty Certification ECU
  • Certification ECU harness is open or shorted
  • Certification ECU circuit poor electrical connection

|How to Fix the B1207 LEXUS Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the B1207 LEXUS code?

Labor: 1.0

The cost to diagnose the B1207 LEXUS code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B1207 LEXUS code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B1207 LEXUS Code Mean?

The Certification ECU communicates with the Transponder Key to verified that the Key has been registered to the vehicle. The Engine Control Module (ECM) sets the ODBII code when communication between the Certification ECU and gateway ECU stops for more than 10 seconds.

Multiplex Communication System

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