02 fog lamp relay?

[wile72]

O2 F-350, Fopg lamps will not light. I have power to the fuse and out of the fuse but no power at the light sockets for the fog lamps. Service manual says to check the relay but no diagram where the relay is. Does any one have any ideas?
Thanks

[gp49]

On a '02, according to my wiring diagram, relay K26 is part of the CJB (central junction box) and it is not servicable.

However, there are two other wires to check. Fuse # 45 (10A) supplies power to your Main Light Switch. The Main Light Switch supplies power to the Fog Lamp Relay Diode (V71) thru the Yellow, 14GA, wire coming out of the main light switch. Check if you have power at the yellow wire coming out of the main light switch. The second fuse is #43 (10A) and it supplies the voltage to the K26 Fog Light Relay in the CJB. The wire coming out of the CJB, with power to the fog light is Tan/Orange, 18GA. Check for power in this wire coming out of CJB.

If you have power coming out of the K26 relay, then you have a break in your wire between the CJB and your fog light plugs. If you don't have power at the Main Light Switch - yellow wire then check the switch itself. If you do have the power coming out of the Main Light Switch, going to the K26 relay then you need more help then I can offer, sorry.

Sorry I can not post the picture. I only have a print copy of the manual.

Mark

'02 F350 CC 4x4 DRW Lariat Auto