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Home >> Lexus >> 2011 >> RX 350 AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Exterior Body Panels >> Back Door Closer System (Diagnostic Codes & Symptom Tests) >> Back Door Closer System >> DTC B2251: Back Door Closer Switch Malfunction >> Description

DTC B2251: Back Door Closer Switch Malfunction: Description

The power back door ECU (power back door motor unit) receives signals from the latch switch, sector switch, back door courtesy switch and pawl switch, which are built into the back door lock. Based on these switch signals, the latch position of the back door lock is determined.

DTC No. DTC Detection Condition Trouble Area
B2251 While the back door closer is operating, a malfunction is detected in position information from the back door courtesy switch within a specified amount of time.
  • Back door lock assembly
  • Wire harness or connector
  • Power back door ECU (Power back door motor unit)