I don't have a ESOF problem, 4 wheel drive works just fine on my 06 F350. The problem is with the bulb behind the 2WD/4X4 High/4X4 Low that lights up when the headlights are on burnt out. I've taken the bulb out and took it to the dealer. They cannot find the bulb and want you to buy the whole new switch assembly $50.00. Part 5C3Z-14B166-AA. But the bulb comes out. I just took a small screw drive put in the "X" on the back turned it 1/4 turn and socket and bulb comes out. So why not just go buy a new bulb, that's the problem take a look at the pictures attached. It's not just a normal bulb. The green rubber piece comes off but there's no part number on the bulb. Plus it needs the long leads on it in order to wrap around the blue plastic piece. Does anyone know where I might be able to get this part short of going to Radio Shack and looking.
You might be able to use the one below directly. You could plug it in and try it and if its not bright enough, you can take it apart and do like I did with mine (use the original gray housing)
Just got the new LED from Autolumination and it works like a charm once I got the polarity correct. If you do get them take a sharpie and make a mark on side of the base. That way if the polarity is incorrect you have reference point as to which way it was installed.
But other than the it works. It's slightly a different green tint as it's LED and not the traditional bulb with a green rubber condom over it. But all in all if you can live with that it's much cheaper than replacing a $50.00 switch for a $4.00 part.
I'd use Autolumination again also. Their site looks a little risky, but I paid through paypal so I had someone to help get the money back if I never received the product. But they're good, order on the night of the 7, got shipping notice on the 9th and got the product on the 12th.
Hey Guys- I think there may be a couple different versions of the ESOF switch. Some have the bulb contacts on one side of the circuit board. Some have it on the other ? I just ordered 2 green LED's. Wouldnt work because my contacts are on the opposite side of bulb socket. Tried to remove LED from new socket to transplant into old... But destroyed it in the process. It was all glued / sealed on the inside. SO I uncoiled the wires of my second LED and passed wires through socket hole and soldered to circuit board traces. Works ! However a little too green for me. Have ordered some white LEDS and will try the green Bootie trick.
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I uncoiled the wires of my second LED and passed wires through socket hole and soldered to circuit board traces. Works ! However a little too green for me. Have ordered some white LEDS and will try the green Bootie trick.
