C1381 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1381 – Yaw Rate / Acceleration Sensor Power Supply Voltage Malfunction

 

C1381 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C1381 Possible Causes

 

Faulty Yaw Rate and Deceleration Sensor,Yaw Rate and Deceleration Sensor harness is open or shorted,Yaw Rate and Deceleration Sensor circuit poor electrical connection

 

C1381 Description

 

The Skid Control Electronic Control Unit (ECU) receives signals from the Yaw Rate and Deceleration sensor via the CAN communication system. The yaw rate sensor has a built-in deceleration sensor and detects the vehicle’s condition using 2 circuits (GL1: G sensor 1, GL2: G sensor 2). The Engine Control Module (ECM) monitors the Yaw Rate and Deceleration sensor. The ECM sets the OBDII code when the Yaw Rate and Deceleration sensor is not to factory specifications.