DESCRIPTION HINT: These DTCs indicate malfunctions relating to the primary circuit. If DTC P0351 is set, check the No. 1 ignition coil assembly circuit. If DTC P0352 is set, check the No. 2 ignition coil assembly circuit. If DTC P0353 is set, check the No. 3 ignition coil assembly circuit. If DTC P0354 is set, check the No. 4 ignition coil assembly circuit.
The crankshaft position sensor system consists of a No. 1 crankshaft position sensor plate and a pickup coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of wound copper wire, an iron core and magnet. The sensor plate rotates and, as each tooth passes by the pickup coil, a pulse signal is created. The pickup coil generates 34 signals per engine revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the fuel injection time and ignition timing are controlled.