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Home >> Buick >> 2002 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P0336: CKP Sensor Circuit Performance >> Circuit Description

Circuit Description

The circuit uses 2 different types of Crankshaft Position (CKP) sensors. The CKP sensor "B" is connected directly to the Ignition Control (IC) module, and consists of the CKP 1 sensor signal circuit and the low reference circuit.

The CKP sensor "A" connects directly to PCM, and consists of the 12-volt reference circuit, the medium resolution engine speed signal circuit and the low reference circuit. If PCM detects an incorrect number of CKP pulses, DTC P0336 sets.