Overdrive Button not working

[02fordfx4]

I have a 2002 f150 fx4, and just recently the overdrive button stopped working. It does not light up, and will not downshift the transmission. I am wondering if it is just a fuse that blew, or if it is something more serious. Any ideas??

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[Carolina Five-0]

"Transmission Control Switch (TCS) and Transmission Control Indicator Lamp (TCIL)

The transmission control switch (TCS) is a momentary contact switch. When the switch is pressed, a signal is sent to the PCM to allow automatic shifts from first through fourth gears or first through third gears only. The PCM energizes the transmission control indicator lamp (TCIL) when the switch is off. The TCIL indicates overdrive cancel mode activated (lamp on) and electronic pressure control (EPC) circuit shorted (lamp flashing) or a monitored sensor failure."

Besides the button not working does it still shift as it should? There is a 5 amp fuse in the Central Junction Box (under dash) for the Transmission Control Switch, fuse # 29.


And if you don't have an Owners Manual there's one here online.
http://www.analogstereo.com/pdf/om/f...anual_2002.pdf

[ManualF150]

By any chance, does your knob move on your shifter? Like can you turn it? If you can turn it, maybe somehow you or someone else twisted it and it broke the wires.

[02fordfx4]

Originally Posted by Carolina Five-0

"Transmission Control Switch (TCS) and Transmission Control Indicator Lamp (TCIL)

The transmission control switch (TCS) is a momentary contact switch. When the switch is pressed, a signal is sent to the PCM to allow automatic shifts from first through fourth gears or first through third gears only. The PCM energizes the transmission control indicator lamp (TCIL) when the switch is off. The TCIL indicates overdrive cancel mode activated (lamp on) and electronic pressure control (EPC) circuit shorted (lamp flashing) or a monitored sensor failure."

Besides the button not working does it still shift as it should? There is a 5 amp fuse in the Central Junction Box (under dash) for the Transmission Control Switch, fuse # 29.


And if you don't have an Owners Manual there's one here online.
http://www.analogstereo.com/pdf/om/f...anual_2002.pdf

Thank you Caroline Five-O, that solved the issue. Thank GODit was just the 5A fuse!

[Mark Kovalsky]

The wires often break where they enter the shifter handle inside the steering column. Remove the plastic cover from the steering column by removing the screws from the underside of the column.

[Steve83]

For more details on getting to the TCIL/TCS wires, click my tan CV below & look thru the Steering Column album.

[Carolina Five-0]

I received e-mail notification of this reply but it isn't on the post any where. Maybe it blew again and he deleted his reply???

02fordfx4 has just replied to a thread you have subscribed to entitled - Overdrive Button not working - in the Transmissions forum of F150online Forums.

This thread is located at:
Overdrive Button not working

Here is the message that has just been posted:
***************
Thank you Carolina Five-O, that solved the issue. Thank GOD it was just the 5A fuse!
***************

[projectSHO89]

Well, if the fuse blew once and he didn't fix the short circuit in the column, it probably blew again.... or it will shortly.

Steve

[02CREW4x4]

Had the same thing on my 02. took to dealer and they said the wires were chafed. had to replace wires. hope this helps.