Seat Power Relay Enable Line

Seat power relay enable line
The BCU provides the seat power relays with an earth supply to the relay coil that enables the relay operation. When this seat power relay enable line is active, the seat power relay energises allowing seat operation.

In order for the seat power relay to be active the BCU must detect either of the following condition options:
^ Ignition switch in position it.
^ Ignition switch in position it or driver's door within 45 seconds of opening.