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Home >> Chevrolet >> 2002 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System Self-Diagnostics - 3.4L) >> Diagnostic Tests >> DTC P0336: CKP Sensor Circuit Performance >> Circuit Description
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Circuit Description

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

The CKP sensor "A" connects directly to the Powertrain Control Module (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.