Operation

OPERATION

Power Distribution

Feed from the positive battery terminal (C0192) is supplied to the fuse holder (C1875) on an R wire. A constant battery feed is also supplied to fusible link 2 and fuse 53 of the passenger compartment fuse box (C0632) on an R wire.

The 100A fuse located in the fuse holder (C1875) provides a constant battery feed to the glow plug timer (C0189) on an R wire. A second 100A fuse in the fuse holder (C1875) provides a constant battery feed to the Engine Control Module (ECM) relay (C1895) on an R wire.

Fuse 53 of the passenger compartment fuse box (C0583) provides a constant battery feed to the ignition switch (C0099) on an R wire. When the ignition switch is turned to the 'ignition' position, current flows across the switch (C0099) to fuse 5 of the passenger compartment fuse box (C0585) on an G wire. Fuse 5 (C0587) provides an ignition feed to the alternator (C0053) on a GW wire.

Fusible link 2 of the passenger compartment fuse box (C0591) is connected to the ignition switch (C0099) by an R wire. When the ignition switch is turned to the 'crank' position, current flows across the switch (C0099) to the immobilisation ECU (C0059) on a BY wire.

Starting ECM Relay

The ECM relay coil (C1895) is provided a constant battery feed from the 100A fuse located in the fuse holder (C1875) on an R wire. The earth path for the relay coil (C1895) is controlled by the ECM (C0603) on an N wire. If the ECM has received a valid 'remobilisation' signal from the immobilisation ECU, it will energise the ECM relay. The energised ECM relay (C1895) provides a feed to fuse 2 of the engine compartment fuse box (C0570) on an RW wire. Fuse 2 (C0570) is connected to the glow plug timer (C0190) by an R then RW wire.