C1412 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1412 – Rear Speed Sensor Left Performance
C1412 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1412 Possible Causes
Faulty Rear Speed Sensor Left,Rear Speed Sensor Left harness is open or shorted,Rear Speed Sensor Left circuit poor electrical connection
The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU. These signals are used for brake control. The speed sensor rotors have rows of alternating N and S magnetic poles and their magnetic fields change when the rotors turn. Each speed sensor detects that magnetic change and sends a pulse signal to the Skid Control ECU.