For a complete wiring diagram Refer to Section 8W.When Monitored:Under closed throttle decel and A/C off. ECT above 75°C (167°F). Engine start time is greater than 50 seconds.Set Condition:One of the CKP sensor target windows has more than 2.86% variance from the reference. Two Trip Fault. Three good trips to turn off the MIL.Possible CausesTONE WHEEL/PULSE RINGWIRE HARNESSCRANKSHAFT POSITION SENSORAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).1. ACTIVE DTCIgnition on, engine not running.With a scan tool, select View DTCs and read and record the related Freeze Frame data.With a scan tool, clear DTCs, PCM battery disconnect to reset the PCM.Start the engine.If the MIL has not yet illuminated, test drive the vehicle to try to get the code to reset.Does the code reset while cranking or during the test drive?YesGo To 2NoRefer to the INTERMITTENT CONDITION Diagnostic Procedure.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)2. WIRE HARNESS INSPECTIONTurn the ignition off.Visually inspect the CKP wire harness. Look for any chafed, pierced, pinched, or partially broken wires.Visually inspect the CKP wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.Make sure the Crankshaft Position Sensor is properly installed and the mounting bolt(s) are torqued to the proper specification.Were any of the above conditions present?YesRepair as necessaryPerform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) NoGo To 33. TONE WHEEL/FLEX PLATE INSPECTIONRemove the Crankshaft Position Sensor.Inspect the Tone Wheel/Flex Plate slots for damage, foreign material, or excessive movement.Were any problems found?YesRepair or replace the Tone Wheel/Flex Plate as necessary.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) NoGo To 44. CRANKSHAFT POSITION SENSOR If there are no possible causes remaining, view repair.RepairReplace the Crankshaft Position Sensor.Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)