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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 404 (Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline) >> Diagnostic Tests >> DTC P0315: Crankshaft Position Sensor Variation Not Learned >> Description

DTC P0315: Crankshaft Position Sensor Variation Not Learned: Description

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The Crankshaft Position Sensor (CKP) system variation learn feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft and the CKP sensor. The calculated error allows the Powertrain Control Module (PCM) to detect misfire events over a wide range of engine speed and load. If the CKP system variation values are not stored in the PCM memory, DTC P0315 sets.

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