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Structure and inner electrical connection

The diesel particulate sensor consists of a measuring probe and evaluation electronics. The two parts are connected by a cable and cannot be separated.

The evaluation electronics is connected to a local CAN bus.

The front power distribution box supplies the diesel particulate sensor with terminal 15N.

Fig 1: Evaluation Electronics - Circuit Diagram
G09908297Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Measuring probe of diesel particulate sensor
2 Heating element
3 Evaluation electronics
CONNECTOR PIN REFERENCE

Pin Explanation
Terminal 15N Terminal 15 after-run, supply voltage
Kl. 31 Terminal 31, ground
Local-CAN Local CAN bus