What is the meaning of this?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles, including but not limited to Ford, Dodge, Toyota, VW, Honda, Chevrolet, Hyundai, Audi, Acura, etc.
The crankshaft position sensor (CKP) and Camshaft position sensor (CMP) work together to control the spark/fuel delivery and timing. They both consist of a reluctor, or tone, ring which passes over a magnetic sensor, generating a voltage to indicate position.
The crankshaft sensor is part of the primary ignition system and acts as the “trigger”. It detects the position of the crankshaft and relays that information to the PCM or the ignition module (depending on the vehicle) to control spark timing. The Camshaft position sensor detects the position of the camshafts and relays the information to the PCM. The PCM uses the CMP signal to identify the beginning of the injector sequence. The timing belt or chain connects these two shafts and their sensors, ensuring precise timing.
If the PCM detects that the crank and cam signals are out of sync by a specific number of degrees, this DTC will be triggered. Bank 2 refers to the side of the engine that contains cylinder #1, and the “B” sensor is most likely the exhaust camshaft side.
Note that it is not uncommon on certain models to see this DTC in conjunction with P0008, P0009, P0016, P0017, and P0018. If you have a GM vehicle and have multiple DTCs, check for service bulletins that may apply to your engine.
Signs and Symptoms
Signs and symptoms of a P0019 may include:
Possible Causes
Possible causes may include:
Possible Solutions
If your vehicle is still under powertrain warranty, it is recommended to have the dealer perform the repairs.
Please refer to a factory service repair manual for vehicle-specific information.
