Cadillac Escalade check engine light remains on after camshaft position sensor switch replacement on Cadillac Escalade

Some Cadillac Escalade owners report experiencing issues with the check engine light remaining illuminated after replacing the camshaft position sensor. These issues may arise if the new sensor is not properly reprogrammed using an OBD-II scanner, which is necessary to clear any stored error codes in the engine controller. Additionally, some owners find that disconnecting the battery for 15 to 20 minutes can help the ECU relearn its position post-replacement. Common error codes such as P0340 and P0011 may persist due to incomplete error code removal or improper installation of the new sensor. Furthermore, signs of camshaft sensor failure, including a lit check engine light, rough idle, misfires, or power loss, may indicate the need for further inspection. It is crucial for owners to address these factors to resolve the persistent check engine light concern effectively.