Structure and inner electrical connection
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The engine oil pressure/temperature sensor is connected by a 3-pin plug connection.
The engine oil pressure/temperature sensor receives its earth/ground and a supply voltage of 5 V from the engine control unit. The pulse-width-modulated signal is split into 3 fixed cycles. The first cycle is for synchronization and diagnostic purposes. The second and third cycles transmit the temperature and the pressure respectively.
| Index | Explanation |
|---|---|
| 1 | Oil pressure sensor |
| 2 | Oil temperature sensor |
| 3 | Evaluation electronics |
PIN REFERENCE
| Pin | Explanation |
|---|---|
| 5 V | 5 Volts, supply voltage |
| PWM | Pulse-width-modulated signal, engine oil pressure/temperature sensor |
| Terminal 31E | Terminal 31, electronics earth (ground) both sensors |