Charging System: Testing and Inspection

- The ignition switch connects circuit A1 with circuits A41, A38, and A48.

- Circuit A21 splices to power fuse 17 in the fuse block.

- Circuit A21 powers the coil side of the fuel pump relay.

- The ASD relay supplies battery voltage for the fuel injectors, ignition coil, and the heated oxygen sensors. The fuel pump relay powers the fuel pump module.