DTC P0335 Crankshaft Position Sensor "A" Circuit: Description
The crankshaft position sensor (NE signal) consists of a magnet, iron core and pickup coil.
The NE signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The NE signal sensor generates 34 signals for each engine revolution. This sensor monitors a plate (timing rotor) located on the crankshaft timing pulley and is used by the ECM (Included in HV control ECU) to detect crankshaft angle and engine speed (RPM/NE). As the crankshaft timing pulley rotates through an engine revolution, this sensor communicates the rotation of the NE signal plate as a pulse signal to the ECM. Based on the signal, the ECM controls fuel injection time and ignition timing.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0335 | No CKP sensor signal to ECM (Included in HV control ECU) while engine running (Engine rotating signal from HV control ECU) (2 trip detection logic) |
|
Reference: Inspection using an oscilloscope.
HINT:
- The correct waveform is as shown.
- VV1+ and VV2+ stand for the VVT sensor signal, and NE+ stands for the CKP sensor signal.
WAVEFORM REFERENCE
| Item | Content |
|---|---|
| Terminals | VV1+ - NE- VV2+ - NE- NE+ - NE- |
| Equipment Settings | 5 V/DIV., 20 ms./DIV. |
| Conditions | Cranking or idling |