Service on the camshaft position sensor begins first with disconnecting the negative battery terminal cable. The camshaft position sensor requires removal after disconnecting its connector followed by bolt removal. First apply engine oil on the O-ring of the camshaft position sensor before mounting it with the bolt which needs to be torqued to 8.5 N.m (87 kgf.cm, 75 in.lbf). Check the O-ring for damage then install the camshaft position sensor while ensuring proper torque of 8.5 N.m (87 kgf.cm, 75 in.lbf) is used. One must reestablish the grounding cable connection to the negative battery terminal while applying force through a torque of 3.9 N.m (40 kgf.cm, 35 in.lbf).