Crankshaft position sensor (345), E39
| Crankshaft position sensor (345), E39 |
| Location |
Crankshaft position sensor (345), E39
| Main task |
The ECM control module, E39 (590), receives information on crankshaft position and speed from the crankshaft position sensor.
| Type |
A perforated disc with 58 ribs is mounted on the crankshaft. The sensor is inductive and is mounted in the engine's crankcase wall. The distance between the sensor and the perforated disc is 0.4-1.3 mm and cannot be adjusted.
| Connection |
| 345 pin no. | Signal type | Description |
| 1 | 5V | Connected to ECM, pin 10(C). |
| 2 | Ground | Connected to ESCM, pin 25(C). |
| 3 | Signal | Connected to ECM, pin 26(C). |
The sensor acts as a alternator. By measuring the frequency, the control module can determine the engine speed.
Sensor resistance is 860±90 Ohms.
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