B0054 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B0054 – Second Row Center Seatbelt Sensor

 

B0054 Possible Symptoms

 

Air Bag Warning Light ON

 

B0054 Possible Causes

 

Faulty Second Row Center Seatbelt Sensor,Second Row Center Seatbelt Sensor harness is open or shorted,Second Row Center Seatbelt Sensor circuit poor electrical connection

 

B0054 Description

 

The Restraints Control Module (RCM) monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. If the RCM detects a short between the circuits of one device and another device, it will store a DTC for each of the signal cross coupled faults in memory. The RCM sends a message to the Instrument Panel Cluster (IPC) to illuminate the air bag warning indicator. When a normal loop fault is present (one loop is either shorted to battery/ground, open circuit or low resistance), then signal cross coupled diagnostics will not be active. Once the normal loop fault is repaired, then the signal cross coupled diagnostics will resume.