cruise control crapped
Thread Starter
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Senior User
Joined: Dec 2004
Posts: 348
Likes: 0
From: Franklinton, NC
cruise control crapped
Cruise just stopped working. The fuses all check out ok. What would be the next simplest thing that I could check before turning the problem over to a mechanic?
Thanks, CedricR.
Thanks, CedricR.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Maybe the brake pressure switch if it's an auto...clock spring contact condition in the steering column would be another possibility.
Since the cruise is controlled by the PCM, there is not much to this system.
Since the cruise is controlled by the PCM, there is not much to this system.
Tuned
Joined: Oct 2012
Posts: 391
Likes: 9
When I bought me truck my cruise control didn't work. I replaced the clock spring and fixed the issue.
With the key on check for good power and ground for the CC wiring in the steering column with a meter. If you have good power and ground there, check the same in the steering wheel behind the air bag. IIRC there are 4 screws on the back side of the steering wheel holding the air bag to the wheel.
Disconnect the batteries and remove the airbag completely. Reconnect the batt's and check for good power and ground and CC switch function. No power or bad ground at the steering wheel are likely signs of a bad clock spring.
Before doing any of this make sure none of your brake lights are burnt out or have corroded wire connectors. This includes the cab rear brake light. And make sure the problem is not the brake switch on the master cylinder. Have a drink and good luck
With the key on check for good power and ground for the CC wiring in the steering column with a meter. If you have good power and ground there, check the same in the steering wheel behind the air bag. IIRC there are 4 screws on the back side of the steering wheel holding the air bag to the wheel.
Disconnect the batteries and remove the airbag completely. Reconnect the batt's and check for good power and ground and CC switch function. No power or bad ground at the steering wheel are likely signs of a bad clock spring.
Before doing any of this make sure none of your brake lights are burnt out or have corroded wire connectors. This includes the cab rear brake light. And make sure the problem is not the brake switch on the master cylinder. Have a drink and good luck
More Turbo
Joined: Mar 2007
Posts: 636
Likes: 7
From: La Mesa, Ca.
Check to make sure the switch on the parking brake is not intermitant, that's what happened to my cruise system. Readjusted the paking brake mechanism to give the switch a more positive action and trouble went away along with brake lamp on dash.
Cargo Master
Joined: Apr 2010
Posts: 2,405
Likes: 4
Did you check the fuse in the wiring harness that comes off the brake master cylinder? This fused wire is the cruise control recall fix. If the pressure switch goes, the fuse pops.
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Thread Starter
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Senior User
Joined: Dec 2004
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From: Franklinton, NC
This might help: [LINK]
Tried Tugly's link. I got nuthin'. No light on dash or anywhere else. I'll check and see if this truck is subject to the recall. Then try the brake pressure switch next.
Thanks guys.
CedricR.
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Thread Starter
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Senior User
Joined: Dec 2004
Posts: 348
Likes: 0
From: Franklinton, NC
Thread Starter
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Senior User
Joined: Dec 2004
Posts: 348
Likes: 0
From: Franklinton, NC
Pretty much stock as I am pretty much poor!!
Senior User
Joined: Oct 2007
Posts: 194
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From: Northeast NE
Without a scan tool, First check the fuses (you have already). If you have a ohmmeter check sensor on the brake master cylinder for continuity. If no ohmmeter (multimeter) unhook the wire harness from the sensor and jump the terminals of the wire harness, and insulate so the jumper can not short out. Test drive. BE CAREFUL the cruise may not shut off with pushing of the brake pedal use the off button on the steering wheel. This will test if the sensor on master cylinder is good or not. According to my local independent mechanic, and good friend. nine out of ten times the sensor on the master brake cylinder has been the issue for him. If this does not work,,, time to dig deeper.
Thread Starter
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Senior User
Joined: Dec 2004
Posts: 348
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From: Franklinton, NC
The brake switch checks out ok as does the wiring harness connected to it. I removed the airbag and i am replacing the CC switch assembly as I broke it getting it out... don't know if it was actually broken before gorilla fingers got hold of it! 
Is the air bag assembly and the clock spring all the same part?
Is the air bag assembly and the clock spring all the same part?