Circuit Description
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix, 2002 Chevrolet Malibu, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
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.