SEAT BELT WARNING (Australia and Japan only)

SEAT BELT WARNING (Australia and Japan only)

DESCRIPTION

General

The seat belt warning lamp (if fitted) is controlled by the Multi-function Unit (MFU). When the ignition switch is first turned to the ’ignition’ position, the seat belt warning lamp should illuminate for approximately 5 seconds, irrespective of seat belt latch switch status. After this initial period, the lamp can only be extinguished by latching the belt buckle within the seat belt stalk.

The seat belt warning lamp will illuminate if the belt buckle is released from the seat belt stalk while the ignition is still switched on.

OPERATION

Power Supplies

Feed from the positive battery terminal (C0192) is supplied to fusible link 6 and fusible link 4 of the under bonnet fuse box (C0632) on an N wire. Fusible link 4 (C0570) of the under bonnet fuse box supplies a permanent feed to the ignition switch (C0028) on a NP wire. When the ignition switch is in the ignition position, a power feed is connected from the ignition switch to fuse 1 (C0099) of the passenger compartment fuse box on a BY wire. Fuse 1 (C0590) supplies the feed to the seat belt warning lamp (C0230) in the instrument pack, the seat belt buckle switch (C0100) and the multi-function ECU on G wires.

General

When the ignition switch is first turned to the ’ignition’ position, current flows across the seat belt warning lamp (C0230 and C0234) to the MFU (C0062) on a BR wire. The MFU (C0016) provides an earth path for the seat belt warning lamp on a B wire to earth header (C0017). The seat belt warning lamp will now illuminate. After approximately 5 seconds, the MFU withdraws the earth path, and providing the seat belt buckle is located within the seat belt stalk, the warning lamp will extinguish. If the seat belt buckle is released from the seat belt stalk, current flows across the buckle switch (C0100) to the MFU (C0062) on a WY wire. When the MFU receives this feed, it reinstates the earth path for the seat belt warning lamp to illuminate the warning lamp in the instrument pack.