Abs - Electrical Testing: Operation: General

Feed from the positive battery terminal (C0192) is supplied to fusible link 1, fusible link 3, fusible link 8, and fusible 11 (C0632) on an R wire. All are located in the engine compartment fuse box.

Fusible link 8 (C0574) and fusible link 11 (C0570) provide constant battery feeds to the ABS modulator (C0501) on NK and NR wires respectively. The ABS modulator (C0501) is earthed on a pair of B wires.

Fusible link 1 is connected in series with fusible link 2, which is also located in the engine compartment fuse box. Fusible link 2 (C0571) provides a feed to the ignition switch (C0028) on an NR wire. Fusible link 3 (C0571) also provides a feed to the ignition switch (C0028) on an N wire.

When the ignition switch is turned to the 'ignition' position, current flows across the switch (C0028) to fuse 2 of the passenger compartment fuse box (C0588) on an NW wire. When in the 'ignition' position, the ignition switch (C0028) also provides a feed to fuse 6 and fuse 25 of the passenger compartment fuse box (C0588) on a G wire.

Fuse 2 of the passenger compartment fuse box (C0581) provides an ignition feed to the brake pedal switch (C0075) on a G wire. Fuse 2 also provides a feed to the HDC relay and the reverse lamp relay, which are also located in the passenger compartment fuse box.

Fuse 25 (C0582) provides an ignition feed to the ABS ECU (C0501) on a W wire. Fuse 6 (C0581) provides an ignition feed to the HDC switch (C0878) on a W wire.