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Home >> Lexus >> 2013 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> Steering Lock System (Diagnostic Codes & Symptom Tests) >> Steering Lock System >> DTC B2781: Open / Short in Steering Lock ECU >> Inspection Procedure

Inspection Procedure

NOTE:
  • When using the Techstream with the engine switch off, perform either of the following: 1) Turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins, or 2) connect the Techstream to the vehicle, select the vehicle type under manual mode, and then enter the following menus: Body Electrical / Smart Access / Trouble Codes.
  • After performing repairs, confirm that no DTCs are output again.
  • When replacing the steering lock actuator assembly (steering lock ECU), registration must be performed. Refer to REGISTRATION [06/2012 - ] .

HINT: 

When all the ECUs that are connected to the LIN communication cannot communicate with the certification ECU, DTC B2785 is stored.

HINT: 

RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC Data List Item Active Test Item
B2781 Smart Access 
  • Sensor Value
  • Power Supply Short
  • Power Supply Open
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