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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> Restraints >> Passive Restraints >> Supplemental Restraint System (SRS) - With Diagnostics - Lancer >> SRS Air Bag Diagnosis >> Diagnostic Trouble Code Procedures < SRS-Ecu > >> DTC B1B54: Seat Belt Buckle Switch (RH) Circuit (Ground Side) Shorted; DTC B1B55: Seat Belt Buckle Switch (RH) Circuit (Power Supply Side) Shorted; DTC B1B56: Seat Belt Buckle Switch (RH) Circuit Open >> Circuit Operation

Circuit Operation

The SRS-ECU determines whether the seat belt is fastened or not according to the connection location of the seat belt buckle switch in the seat buckle.