Rain sensor (649)
| Rain sensor (649) |
| Main task |
The rain sensor controls windscreen wiping.
| Type |
The sensor detects whether or not the windscreen needs wiping.
The rain sensor transmits light that is reflected differently depending on how much water is on the windscreen. The sensor detects the intensity of the reflected light and uses this to determine whether or not the wipers should be activated.
| Connection |
|
Pin No.
|
Signal type
|
Description
|
| 1 | Power supply, +15 | From REC pin 2 (H2) |
| 2 | Ground | Rain sensor's ground in the body. |
| 3 | Communication lead | Two-way communication with REC pin 24 (H2). |
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