Structure and inner electrical connection
The ethanol sensor is connected via a 3-pin electrical connector.
The sensor receives its power supply from the engine management ECU. The signal from the ethanol sensor is transmitted by pulse width modulation.
| Item | Explanation |
|---|---|
| 1 | Ethanol sensor |
| 2 | Electronic analyzer module with sensor cell |
| 3 | Temperature sensor |
CONNECTOR PIN REFERENCE
| Pin | Explanation |
|---|---|
| PWM | Ethanol content and temperature signal |
| 5 V | 5 Volts, supply voltage |
| Kl. 31 | Ground connection (Terminal 31) |