Power Distribution
Feed from the positive battery terminal (C0192) is supplied to fusible link 5 and fuse 53 of the passenger compartment fuse box (C0632) on an R wire. Fusible link 5 (C0588) is connected to fuse 4, fuse 6, and fuse 17 of the rear fuse box (C2024) by an R wire. Fuse 4 and fuse 6 (C2020) supply constant battery feeds to the trailer socket (C0499) on RY and RU wires respectively. Fuse 17 (C2022) provides a constant battery feed to the trailer ECU (C0380) on an RW wire.
Fuse 53 of the passenger compartment fuse box (C0583) provides a constant battery feed to the ignition switch (C0099 on Td6 vehicles, C0028 on V8 vehicles) on an R wire. When the ignition switch is turned to the 'auxiliary' position, current flows across the switch (C0099 on Td6 vehicles, C0028 on V8 vehicles) to fuse 2 of the passenger compartment fuse box (C0585) on a G wire. Fuse 2 (C0587) provides an auxiliary ignition feed to the trailer socket (C0499) via the rear fuse box (C2022) on a GY wire.