Question about 2004 Ford F150

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F 150 SPEED CONTROL

Speed control quit

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  • yadayada
    yadayada May 11, 2010

    does the horn function?

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If truck has a floor shifter, replace shift interlock switch. On trucks built before
5/04, this part was defective. There is a Tsb out on this issue. If you can put truck in drive without pressing brake, this is your problem. It is common among the 1st units of the new body style. I am not impressed with the quality of this truck. Looks like it may be time for a Tundra.
Thanks Dan Ziegler

Posted on Jan 11, 2009

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1 Answer

My cruise control does not work on 1994 Ford 150. Fuse is fine, where to look next? Thank you


Which fuse ? There are two that supply B+ to the speed control servo ! One is located in the under hood fuse box and the other in the fuse panel inside the vehicle > The fuse may look fine but is there B+ voltage across the fuse . Check it with a volt meter . Check B+ voltage at the speed control servo , Black with yellow trace and P/O wire , what ever color that is . Is there B+ at the control switch ? The speed control servo supply's voltage to the cruise control switch . You can check it at the speed control servo as well . They could be videos on youtube showing how to test it .
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  • 3 flashes - deactivator switch is open or circuit defective.
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    • Central junction box (CJB) fuse 13 (20A).
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    • Go To Pinpoint Test H .
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    No GO to H2 . H2 CHECK DEACTIVATOR SWITCH POWER
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    Yes INSTALL a new deactivator switch. REFER to Speed Control Deactivator Switch in this section. REPEAT the self-test.

    No REPAIR the circuit. REPEAT the self-test.

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