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Home >> Lexus >> 2015 >> LS 600h >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes >> Pre-Collision System >> DTC B2000: Short to B+ in Seat Belt Motor RH Circuit; DTC B2005: Short to B+ in Seat Belt Motor LH Circuit [10/2014 - ] >> Description

DTC B2000: Short to B+ in Seat Belt Motor RH Circuit; DTC B2005: Short to B+ in Seat Belt Motor LH Circuit [10/2014 - ]: Description

The seat belt control ECU receives collision information from the driving support ECU and skid control ECU via CAN communication, and tightens the seat belt by operating the motor inside the front seat outer belt assembly.

When DTC B2000 is detected, DTCs B2016, B2026, B2027, and B2035 will not be detected.

When DTC B2005 is detected, DTCs B2021, B2031, B2032, and B2035 will not be detected.

DTC Code DTC Detection Condition Trouble Area
B2000 During initial check or with power switch is on (IG), seat belt motor RH side circuit has power supply short (terminal MOR+ and MOR- are 8.5 V or more) for 1 second or more
  • Front seat outer belt RH
  • Harness or connector
  • Seat belt control ECU
B2005 During initial check or with power switch is on (IG), seat belt motor LH side circuit has power supply short (terminal MOL+ and MOL- are 8.5 V or more) for 1 second or more
  • Front seat outer belt LH
  • Harness or connector
  • Seat belt control ECU