The DSC3 control unit is powered via four lines:
Pin No. |
Signal |
|---|---|
1 |
12 V supply (terminal 87) |
51 |
12 V supply (terminal 30) |
28, 29 |
Ground (terminal 31) |
Note
At "ignition ON", the positive supply at pin No. 1 is switched on immediately via the DME main relay but it is switched off only after approx. 5 second delay at "ignition OFF" (switch-off delay by DME control unit).