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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 B2782: Power Source Control ECU Malfunction >> 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.
  • The steering lock system uses LIN communication. First perform the inspections in "How to Proceed with Troubleshooting" to confirm that there are no communication malfunctions before proceeding with troubleshooting.
  • When disconnecting the cable from the negative (-) battery terminal, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION [06/2012 - ] .
  • After performing repairs, perform the DTC output confirmation operation, and then 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: 

RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC Data List Item Active Test Item
B2782 Smart Access 
  • Power Supply Short
  • Power Supply Open
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