General Information

B1274 Broken Cable

General Information

Component Location





General Description

Power sliding door (here in after PSD) is the system which moves sliding door of vehicle by electronic motor so that user can open or close door with less force than required on manual operation. PSD consists of drive unit, center roller/rail, handle and various kinds of switch (anti pinch, detent, latch), Drive unit is located at rear quarter panel that is between C pillar and D pillar. It is core part of PSD that drives cable by force of motor to move sliding door. beside that Drive unit consists of PSD ECU, door motor, clutch, optical sensor, cable and warning buzzer. Drive unit cable moves door by transmitting driving force of door motor through center roller and is located at cable drum which is between pinion interpretor and clutch assembly.

DTC Description

The ECM sets DTC B1274 if cable of drive unit is broken.

DTC Detecting Condition





Schematic Diagram





Signal Waveform

** Output voltage of optical sensor.