C1420 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1420 – Acceleration Sensor Malfunction
C1420 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1420 Possible Causes
Faulty Yaw Rate Sensor (Built-In Acceleration Sensor),Yaw Rate Sensor harness is open or shorted,Yaw Rate Sensor circuit poor electrical connection
The Skid Control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system. The yaw rate sensor has a built-in acceleration sensor and detects the vehicle’s condition using 2 circuits. The Skid Control ECU monitors the Acceleration Sensor. The Skid Control ECU sets the OBDII code when the Acceleration Sensor is not to factory specifications.