C2191 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2191 – Vehicle Speed Signal Error


C2191 Possible Symptoms


Tire Pressure Monitor System (TPMS) Warning Light ON,Anti-Lock Brake System (ABS) Warning Light ON


C2191 Possible Causes


Faulty Vehicle Speed Sensor,Vehicle Speed Sensor harness is open or shorted,Vehicle Speed Sensor circuit poor electrical connection,Faulty Tire Pressure Warning ECU


C2191 Description


The Tire Pressure Warning ECU receives a speed signal from the combination meter. This Diagnostic Trouble Code (DTC) is stored upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20 km/h) is detected for 3 seconds or more. The DTC is output only in test mode.