04 cruise control problem
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Member
Joined: Aug 2008
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From: The North Coast, Ohio
04 cruise control problem
hey guys I'm having problems with my cruise control... sometimes it will not turn on and other times I will have it on and after a couple mins. it just shuts off and I can't get it to turn back on. Does anyone have an idea of what could be causing this?? thanks
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Joined: Jun 2002
Posts: 10,511
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From: Under the flightpath of old ORD 22R
Is your 2004 a Heritage or Lightning model ?
Couldn't find a post from you that shows that it is, assuming it is not.
If not, the next question is did you do a LED taillight conversion ( rear and/or CHMSL ).
2004 -2008 the CC does not have the secondary safety switch on the master cylinder like the 97-03 MY trucks did, due to conversion to throttle by wire ( and the obvious reason Ford went away from this ).
There is a deactivator switch above the BPP ( Brake Pedal Position ) Switch on the brake mount. The BPP has 4 wires ( stop lamp, and Shift interlock ) to it, and higher up is the deactivator switch with 2 wires. Could be an issue with this, have you done any work under the dash as of late ?
If the CHMSL does not work all the time, this can cause an issue with the CC.
The PCM takes the input from the BPP ( CHMSL part ) and the deactivator switches for the CC. Usually standard bulbs in the tail lamps and a LED CHMSL together will be enough to run the CC ( mine is an aftermarket LED CHMSL on the cap, with std bulbs ).
If you have a manual trans, the CPP ( Clutch Pedal Position ) Switch also is an input to the PCM.
The PCM controls the ETC ( Electronic Throttle Control ) motor, and confirms the placement with the TPS ( Throttle Position Sensor ). Bit different on the 4.2L, this is a 5.4L & 4.6L configuration.
Couldn't find a post from you that shows that it is, assuming it is not.
If not, the next question is did you do a LED taillight conversion ( rear and/or CHMSL ).
2004 -2008 the CC does not have the secondary safety switch on the master cylinder like the 97-03 MY trucks did, due to conversion to throttle by wire ( and the obvious reason Ford went away from this ).
There is a deactivator switch above the BPP ( Brake Pedal Position ) Switch on the brake mount. The BPP has 4 wires ( stop lamp, and Shift interlock ) to it, and higher up is the deactivator switch with 2 wires. Could be an issue with this, have you done any work under the dash as of late ?
If the CHMSL does not work all the time, this can cause an issue with the CC.
The PCM takes the input from the BPP ( CHMSL part ) and the deactivator switches for the CC. Usually standard bulbs in the tail lamps and a LED CHMSL together will be enough to run the CC ( mine is an aftermarket LED CHMSL on the cap, with std bulbs ).
If you have a manual trans, the CPP ( Clutch Pedal Position ) Switch also is an input to the PCM.
The PCM controls the ETC ( Electronic Throttle Control ) motor, and confirms the placement with the TPS ( Throttle Position Sensor ). Bit different on the 4.2L, this is a 5.4L & 4.6L configuration.
