2.0L Diesel
Type
The RPM sensor is an inductive sensor, i.e. its operation is determined by magnetic field changes generated by the teeth passing in front of the toothed wheel (60-2 teeth).
Function
The RPM sensor is used by the Powertrain Control Module to:
- Determine the rotational speed of the crankshaft
- Determine the angular position of the crankshaft.
Location
The RPM sensor is fitted on one side of the block and faces the toothed wheel on the crankshaft pulley.
Technical specifications
| Winding resistance | 790 ohm ± 20% |
| Winding inductance | 680 MH ± 20% (f=1 kHz) |
| Resistance of insulation between the terminals and sensor body | > 1 megohm |
| Operating temperature | ?40°C - 150°C |
| Air gap | 0.5 - 1.5 mm |
| M6 fixing screw tightening torque | 8 Nm ± 20% |
RPM sensor electrical specifications
| Sensor specifications | Electrical resistance equal to around 1 kilohm. |
| Type of output signal | Alternating voltage with variable maximum value and frequency proportional to flywheel speed |
| Measuring method | Given the signal type, an OSCILLOSCOPE or an Examiner equipped with an SMA module (for Examiner Smart) must be used to display the signal. Connect an Examiner in voltmeter mode and read the signal for about 2 - 5 seconds. The graph should have the following specifications: wave amplitude and frequency proportional to each other and to the flywheel speed; the signal should change when the sensor reads the missing tooth (every 58 signal peaks). |
Electrical connections
Key:
1 - Positive (A)
2 - Earth (B)