C191B Code: Meaning, Causes, and Symptoms | OBD2 Codes

C191B – Rear Vehicle Speed Signal


C191B Possible Symptoms


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


C191B Possible Causes


Faulty Speed Sensor,Speed Sensor harness is open or shorted,Speed Sensor circuit poor electrical connection,Faulty Rear Active Stabilizer Control ECU


C191B Description


The Active Stabilizer Suspension System uses CAN communication to gather information necessary for control functions. When a malfunction occurs in another system the Diagnostic Trouble Code (DTC) is stored.