scott123007
Well-Known Member
I've been screwing around with my front brake light switch all morning. I can't believe this is the second one to fail. Anyway, I found the culprit but could not fix it. If you take the switch apart, there are two micro switches inside it. The micro switch that controls brake light function was only working intermittently. Unfortunately, I could not disassemble the micro switch itself to see what was wrong. I eventually got it to work with relative consistancy by pressing and releasing the little button on it, and by tapping it with a screw driver head. With it still apart, I turned the key on and turned the CC on, and it stayed on. If I pressed the button on the non brake light micro switch, I could press and release that one all I wanted, and it had no effect on the CC light. If I pressed and released the brake light micro switch, the CC light would start blinking. If I held in the non brake light micro switch and then pressed the brake light micro switch, it would operate as it should.
I'm just guessing here, but I think the first micro switch gets depressed before the brake light micro switch to tell the ECU to disengage the CC, but if that order gets disrupted then the CC disarms itself altogether.
So with that, I got the bright idea to make the brake light micro switch non functional because I didn't want to put it all back together, just to have it act up again in a week or so. My reasoning is that even if the CC will not disengage now by using the front brake, I still have the clutch, rear brake, and throttle, to disable the CC and I just have to use a little rear brake whenever I use my brakes for my brake light to operate, while slowing down. I'm not too worried about getting hit while stopped if my brake light isn't on, if I don't feel like pressing my rear brake lever while stopped. I think if someone is so inattentive that they are going to hit me from behind, a silly little brake light is not going to be my saving grace, lol.
I played around with the brake light micro switch one last time to make sure the brake light was off and then broke the little button off the micro switch so that when I pull in the front brake lever nothing happens. The brake light does not come on, and the cruise does not shut off. It works like a charm, and now I have my cruise back again.
I'm just guessing here, but I think the first micro switch gets depressed before the brake light micro switch to tell the ECU to disengage the CC, but if that order gets disrupted then the CC disarms itself altogether.
So with that, I got the bright idea to make the brake light micro switch non functional because I didn't want to put it all back together, just to have it act up again in a week or so. My reasoning is that even if the CC will not disengage now by using the front brake, I still have the clutch, rear brake, and throttle, to disable the CC and I just have to use a little rear brake whenever I use my brakes for my brake light to operate, while slowing down. I'm not too worried about getting hit while stopped if my brake light isn't on, if I don't feel like pressing my rear brake lever while stopped. I think if someone is so inattentive that they are going to hit me from behind, a silly little brake light is not going to be my saving grace, lol.
I played around with the brake light micro switch one last time to make sure the brake light was off and then broke the little button off the micro switch so that when I pull in the front brake lever nothing happens. The brake light does not come on, and the cruise does not shut off. It works like a charm, and now I have my cruise back again.