Spped control not working
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Joined: May 2007
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Spped control not working
I have an 01 4.6. Just recently, the cruise control stopped working. I had the new jumper put on maybe a year or two. I have checked all the fuses, and all are fine. Is this a case of me needing to replace the jumper again? I know there is a fuse in the jumper that can't be replaced. Any help is appreciated.
Senior Member
Joined: Apr 2003
Posts: 271
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From: South Ga
More info:
Is the cable properly attached at the throttle body and speed control servo?
Do you have voltage to the deactivator switch on the brake master cylinder?
Has the switch become porous allowing fluid to enter the harness?
Does your horn sound?
The above items are what I would check first.
FordMasterTech
Is the cable properly attached at the throttle body and speed control servo?
Do you have voltage to the deactivator switch on the brake master cylinder?
Has the switch become porous allowing fluid to enter the harness?
Does your horn sound?
The above items are what I would check first.
FordMasterTech
Technical Article Contributor
Joined: Jun 2002
Posts: 10,511
Likes: 10
From: Under the flightpath of old ORD 22R
Unless they came out with another revision, the fuse in the harness is an ATM fuse.
I am not sure what the recall would have for warranty on the harness, but the fuse can ( could) be seen by cutting the tape open.
Try running the CC self test
With the key off depress and hold the cruise control off button while turning the ignition to the run position,don't start the truck, the cruise light will flash once to let you know it is in self test.
Five additional flashes indicate a bad cruise control servo
Release the cruise off switch and within 5 seconds depress the other switches in sequence:
1. on
2. resume
3. coast
4. set/ accel
The speed control light will flash as each switch is depressed.
If the last one does not flash it may then flash a code
After this the cruise will move the throttle to test the actuator and the cable.
Make sure the throttle returns to idle and turn the key off.
I am not sure what the recall would have for warranty on the harness, but the fuse can ( could) be seen by cutting the tape open.
Try running the CC self test
With the key off depress and hold the cruise control off button while turning the ignition to the run position,don't start the truck, the cruise light will flash once to let you know it is in self test.
Five additional flashes indicate a bad cruise control servo
Release the cruise off switch and within 5 seconds depress the other switches in sequence:
1. on
2. resume
3. coast
4. set/ accel
The speed control light will flash as each switch is depressed.
If the last one does not flash it may then flash a code
After this the cruise will move the throttle to test the actuator and the cable.
Make sure the throttle returns to idle and turn the key off.
