Chevrolet Equinox Service Manual: Crankshaft Position System Variation Learn Engine Block Cylinder Block Crankshaft

Note:The Crankshaft Position System Variation Learn procedure is also required when thefollowing service procedures have been performed, regardless of whether DTC-P0315is set:

An engine replacementA engine control module (ECM) or body control module (BCM) replacementA crankshaft balancer replacementA crankshaft removal and/or replacementA crankshaft position sensor disturbance/removal and/or replacementAny engine repairs which disturb the crankshaft to crankshaft position sensor relationship.

Note:The ECM monitors certain component signals to determine if all the conditions aremet to continue with the crankshaft position System Variation Learn Procedure. Thescan tool only displays the condition that inhibits the procedure. The scan tool displaysthe signals of the following components:

Crankshaft position sensors activity—If there is a crankshaft position sensor condition,refer to the applicable DTC that set.Camshaft position sensor signal activity—If there is a camshaft position sensor signalcondition, refer to the applicable DTC that set.Engine coolant temperature (ECT)—If the engine coolant temperature is not warm enough,idle the engine until the engine coolant temperature reaches the correct temperature.

Note:The ECM monitors certain component signals to determine if all the conditions aremet to continue with the Crankshaft Position Variation Learn procedure.

Ignition ON, observe the DTC information with a scan tool. Verify no other DTCs areset, except DTCs-P0300–P0306, or P0315.If DTCs are set, except DTCs-P0300–P0306, or P0315, refer toDiagnostic Trouble Code (DTC) List - Vehiclefor further diagnosis.Select the Crankshaft Position Variation Learn Procedure with a scan tool and followthe on screen instructions:Verify DTC-P0315 does not set.If DTC-P0315 set, or another DTC is present refer toDiagnostic Trouble Code (DTC) List - Vehiclefor the applicable DTC that set.If the DTC does not setAll OK.