1998.5 2500, Can I put Fog lights on their own switch? They come on with parking and
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If you don't have one yet, get the factory service manual for your truck from here. Wiring diagrams are in section 8W.
Switch connector has five wires.
Brown/yellow feeds the switch, black/orange is ground from the switch. These two wires control Fog Lamp Relay 1. Which feeds power to fog lamp relay 2. Relay 2 is controlled by the headlamp dimmer switch. (on with low beams, off with high beams.) If yours are always on with the running lights on, (and turn off with the high beams) I would guess that the previous owner simply grounded the Brown/Yellow wire somewhere.... Could be under the hood, could be somewhere in the dash.
Switch connector has five wires.
Brown/yellow feeds the switch, black/orange is ground from the switch. These two wires control Fog Lamp Relay 1. Which feeds power to fog lamp relay 2. Relay 2 is controlled by the headlamp dimmer switch. (on with low beams, off with high beams.) If yours are always on with the running lights on, (and turn off with the high beams) I would guess that the previous owner simply grounded the Brown/Yellow wire somewhere.... Could be under the hood, could be somewhere in the dash.
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