4.6L LH2 Engine DTC P0315 at Low Mileage or after a PCM Replacement - kw crank CKP DTC LH2 MIL PCM sensor

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

04 SRX, XLR 4.6L (LH2) engine DTC P0315 on low mileage vehicles or after a PCM replacement

The CKP system variation learn procedure should be performed first (per SI Document number 1227182) and then the vehicle performance evaluated to verify if the DTC P0315 would reoccur. The crankshaft sensors should not be replaced. The CKP system variation compensating values are stored in ECM memory after a learn procedure has been performed. If the CKP system variation values are not stored in the ECM memory, DTC P0315 sets.

Note: The CKP system variation learn procedure must be done whenever a PCM, crank sensor or engine is replaced.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(04 Cadillac SRX 4.6L (LH2) engine) and (04 Cadillac XLR 4.6L (LH2) engine)

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