1999 - 2003 7.3L Power Stroke Diesel - FOG LIGHTS + BOSCH RELAY= DRL - I'm going to have my fog lights as DRL's. I have the wiring diagram using the Bosch relay .. Fog light retrofit kit wiring harness connection diagram. . . . . . . . . . . . . . . . . . . . . . 7 To install the fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 To install and connect the fog light wiring harness . . . . . . . . . . . . . . . . . . . . . . . . . 9
![[DIAGRAM] Bosch Relay Wiring Diagram Fog Lights](http://i.imgur.com/ytjTamB.jpg "[DIAGRAM] Bosch Relay Wiring Diagram Fog Lights")
![[DIAGRAM] Bosch Relay Wiring Diagram Fog Lights](https://annawiringdiagram.com/wp-content/uploads/2019/02/jeep-fog-light-wiring-diagram-wiring-diagram-explained-fog-light-wiring-diagram-with-relay.jpg "[DIAGRAM] Bosch Relay Wiring Diagram Fog Lights")
Since Wavmixer's pictures and diagrams are for pre 2003 models, I have included a picture of where the 2003 factory fog light relay is located and a diagram of where you should connect to the 2003 relay. If you just follow his instructions while looking at this updated information for the 2003 model, you should have no problems. Also, when tapping into the parking light wire for power, you.. bosch relay wiring diagram, relay for horn and MDL, fog light