Join Date: Jan 2008
Location: Ontario, Canada
Feedback Score: 0 reviews
I’m not an expert (guessing), but when talking to people way after I had my switch replaced. Is that this switch is to deactivate the cruise if the brake pedal switches malfunctions and doesn’t shut off the cruise control (extra safety device). I believe that it is a normally closed switch (fail safe) and opens when pressure is applied when stepping on the brake pedal.
“Not” on my make and model year but there was a recall for these switches for causing fires on earlier Fords. So there is a lot of information on the internet.
Knowing what I know now! And an expert can correct me. Since my truck was still under warranty, I brought it into the dealer and had the code read and the defective switch replaced. My problem was intermittent and might have been hard to verify the switch was bad.
I believe (guessing) that the switch on the master cylinder is the farthest from the firewall I think with two wires going to it and since it is a switch, I might use a ohm meter to verify that the switch is opening and closing when pushing on the brake pedal. I don’t want to put anyone in harms way, so I wouldn’t jumper out this switch to test and see if the cruise control would work unless an expert told me I could safely.
I believe that these switches are under $30 and have been told that on some model vehicles you have to bleed the brakes after the installation and on mine I don’t know, I don’t think the dealer had to on mine? I do think that they had to add some fluid.
I’m a cheap old man and hate to give Ford any more money, but if my truck was out of warranty and I couldn’t get the codes read for free, I probably test the switch on a truck at work (or a friend’s truck, LOL) and if my switch didn’t get the same meter readings. I’d buy the newest version of switch and plug it into the connector and try the cruise control before installing it into the master cylinder. The risk of spending $30 is a lot cheaper then an hour’s labour and parts at the dealer. Now that I know that it cost me $100 deductible to have mine fixed, I hope that you can fix yours for under $30.
Hope this helps or at least makes sense?
Last edited by MPD56; 12-02-2011 at 04:35 PM.