Disconnect the cable from the negative battery terminal. For 2.4L four-cylinder models, note that these are equipped with two CMP sensors, one for the intake and one for the exhaust camshaft, located on each end of the cylinder head. Remove the air intake duct if necessary to provide more room to work, then disconnect the electrical connector from the CMP sensor. Remove the CMP sensor mounting bolt and take out the sensor, keeping in mind that it may be necessary to remove the engine lift bracket to access the exhaust CMP sensor. If reinstalling the same sensor, check the condition of the O-ring and replace it if damaged. Installation is the reverse of removal. For 2006 and earlier 3.5L V6 models, the CMP sensor is mounted under the timing belt cover near the exhaust camshaft sprocket on the driver's side cylinder head. Remove the timing belt cover, disconnect the sensor electrical connector, and remove the two sensor mounting bolts to take out the sensor, with installation being the reverse of removal. For all other V6 models, note that 2007 through 2009 models use two CMP sensors, while 2011 and later models use four sensors mounted on the drive belt end of the cylinder heads. Remove the engine cover if necessary for access, disconnect the sensor electrical connector, and remove the bolt securing the sensor to the side of the cylinder head before pulling the sensor out of its socket, with installation being the reverse of removal.