Dtc B2790 Id Box Eeprom Malfunction


DESCRIPTION

INSPECTION PROCEDURE

REPLACE ID CODE BOX

REGISTER RECOGNITION CODES

REGISTER ECU COMMUNICATION ID

CLEAR DTC

CHECK FOR DTC

DTC B2790 ID BOX EEPROM Malfunction


DESCRIPTION

This DTC is stored when the ID code box detects an internal malfunction.

DTC Code
DTC Detection Condition
Trouble Area
B2790
The ID code box detects an internal malfunction.
  1. ID code box
  2. Certification ECU

INSPECTION PROCEDURE

NOTICE:
Before replacing the certification ECU, refer to the Service Bulletin.
1.REPLACE ID CODE BOX

  1. Replace the ID code box (Refer to the Service Bulletin).


NEXT


2.REGISTER RECOGNITION CODES

  1. Register the recognition codes in the ECUs (Refer to the Service Bulletin).


NEXT


3.REGISTER ECU COMMUNICATION ID

  1. Register the ECU communication ID (Refer to the Service Bulletin).


NEXT


4.CLEAR DTC

  1. Clear the DTCs (LandCruiser RM000000QYC07LX.html).


NEXT


5.CHECK FOR DTC

  1. Check for DTCs (LandCruiser RM000000QYC07LX.html).

    OK:
    DTC B2790 is not output.


NG
REPLACE CERTIFICATION ECU
OK

END (ID CODE BOX IS DEFECTIVE)