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How-To: Replace 7G (03-07) Brake Light Switch

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51K views 16 replies 10 participants last post by  Flytiger12  
#1 · (Edited)
DISCLAIMER: This tutorial is being written as a guide and in no shape or form do I hold liability for any damage you cause to your vehicle by attempting this procedure individually and not by a professional, certified mechanic.

HOW-TO: Remove and Replace a 7th Generation (2003-2007) Honda Accord Brake Light Switch

Possible Symptoms of Failure:
-- No brake light illumination upon depression of the brake pedal
-- Continuous brake light illumination after car is shutdown and ignition is OFF
-- Steady /!\TCS ('03-05) or /!\VSA ('06-07) illumination (TCS/VSA will blink when the system is actively assisting the vehicle to gain stability. Steady illumination is indicative of an issue with either the module or in my case the BLS)



VIDEO:
My Video Explanation / Demonstration


I started seeing my /!\VSA light come on in a steady state for no apparent reason. After searching around on the forums, I came to the conclusion that the brake light switch (which is known to fail) must have went bad / was malfunctioning, even though I still had fully functioning brake lights!

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PICS:
1) Start by removing the steering wheel column panel and under grommet by carefully pulling and releasing the tabs to gain access to the brake light switch.
** Remove 1 Philips screw (bottom left of steering wheel panel) first **

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2) Switch location - directly above brake pedal

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3) Brake pedal in full resting position:

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(If you look closely, you can see a little piece of the white that is still sticking out on my old switch, even with the brake pedal at full resting position)


4) Brake pedal being depressed:

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(In this pic, you can see the bluish-purple plate that engages/disengages the switch as the brake actuator moves forward/backward)
 
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#2 ·
Was the switch itself bad ? I Ask cause this happended on my truck. The switch moved forward some how and all I had to do was adjust it forward a couple tabs. Moving it forward allowed the button to be depressed fully...problem solved.

Very nice write up BTW.
 
#3 · (Edited)
It may or may not have been bad... I didn't really look at it until I had already ordered the new one. The only reason why I ordered a new one was mainly because...

1) Their history of being known to be problematic on our generation (and to me anything related to brakes/signaling/lights/etc. is a major safety concern which gets top priority in always being 100% working/inspected routinely)

2) The price for a new one is so cheap

3) The install/replacement literally takes < 5 minutes (Stealership charges an hour+ of labor for this install?? :gotme: Psh.)

4) I had to run to the dealership anyhow to get some more DW-1 haha

But yea, you're absolutely right, I may have been able to just re-adjust it further up and it could've been fine. *shrugs* Oh well, next time I'll try that first - I did keep the old one, too. haha

and thanks for the compliment bud! :yes:
 
#8 ·
In my 14 years of driving I've had this happen to me on 2 cars (when the brake lights would stayilluminated even with the car off) and both times I just taped a penny to the blue/purple tab (quick fix) and never had another problem after that BUT I never knew the brake switches were cheap. They always seemed expensive to me for some reason.

Good write up
 
#11 ·
Did your check engine light come on as well? If so what code was it throwing? I am having mine throw a code and the code it says it is is the pedal sensor. I replaced it twice and I am still having the same problem. The VSA light doesnt always come on but when it does I get the check engine light and it runs in limp mode.
 
#17 ·
I just had this issue and fixed it without replacing the switch. I only found out I had a problem when a coworker told me while pulling into work that my brake lights weren't on. The circuit in the switch had been making sparatic connections so I was given no warning light on the dash.

I removed the switch as directed above and then simply took it apart using a flat head screwdriver to pry it apart. I cleaned the switch using carburetor cleaner (I know, not the best) and cue tips. I then applied some silicone grease and put the switch back together. Works just fine now.