DESCRIPTION
An auxiliary battery is available for pickup models. The auxiliary battery mounts to the left front of the engine compartment and is connected through a relay on the left wheelwell to the battery junction block on the right side of the cowl in the engine compartment. The relay is activated and grounded through the convenience center located on the left side of the cab behind the instrument panel.
CIRCUIT OPERATION
Circuit operation is shown in figure 6. Constant voltage is supplied from the main battery (A) through the junction block (D) and the black/red wire to the relay.
Constant voltage is also supplied by the auxiliary battery (B) to the relay and through the red feed wire (P) to the camper. When the ignition switch is turned to RUN, current flows through the heater/air conditioning fuse in the fuse block, through the convenience center, and across the coil in the relay. The relay energizes and the contacts close. The auxiliary battery can now be charged by the vehicle’s charging system.
If voltage is not reaching the camper unit feed wire (P), check the following:
1. Auxiliary battery (B) state of charge.
2. Battery and convenience center (H) ground wires.
3. Heater fuse (G) by operating the heater or A/C with the engine running.
4. Fusible links (C).
5. Feed wire in-line fuse (J).
