shinjyo Posted August 24, 2020 Share Posted August 24, 2020 As title stated, my 07 Spec B's ABS and Traction Light on only when press brake pedal hard. Lights are gone once I shutoff and restart the car. I can replicate this situation exactly when I have my car parked, press brake pedal hard (with handbrakes on or not). I haven't try it when I am driving cause it's kinda difficult to press really hard during driving. All fuse looks good other than a dead battery for a month while I was cleaning intake manifold and replacing some vacuum lines. Brake light bulbs and wiring seems fine. I might check the brake booster hose first. Any idea or advice are greatly appreciated. Thanks! Link to comment Share on other sites More sharing options...
Max Capacity Posted August 25, 2020 Share Posted August 25, 2020 http://people.csail.mit.edu/ilh/vacation/ Anything in the service manual about that in the troubleshooting tables... It may be a vacuum problem ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
shinjyo Posted August 27, 2020 Author Share Posted August 27, 2020 Tried to pull any DTC code from my AP, but got nothing. Was sitting in parking in night, I notice my brake light doesn't come on unless I step further down on the pedal. Resting the foot on the brake fir the first 1 cm doesn't trigger any brake lights to come on...could it be the light switch? I will look into it more. Link to comment Share on other sites More sharing options...
Max Capacity Posted August 27, 2020 Share Posted August 27, 2020 Is there any problem when driving and applying the brakes ? Or is this just something you noticed while the car is parked ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Pyman Posted September 7, 2020 Share Posted September 7, 2020 Hey! I think I'm currently going through this problem too with my 07 Spec. B! Well, my ABS light started coming on somewhat recently after I did a replacement on my front brake pads. I'm driving it normally and the brakes work to bring me to a stop and all, until a few more stops. The light comes on and stays on until I shut the car off, and the same procedure happens again when I turn the car back on. Yesterday, I was trying to figure it out; tried checking and redoing my front brakes again. Making sure I didn't over-tighten or under-tighten my caliper bolts to the slider pins. Everything seemed fine! I was pretty confident in my work and the brakes are still working. I also just realized that the ABS light comes on even when I'm in park pushing down the brake pedal a few times to the floor. Link to comment Share on other sites More sharing options...
shinjyo Posted October 5, 2020 Author Share Posted October 5, 2020 Want to report back. It was my brake switch problem. Replaced the brake switch behind the brake pedal. Problem solved. My symptom as stated on top was the light will come on after I press and release brake pedal no matter if the car is moving or at the driveway. I can pretty much replicate the problem by pressing the pedal really hard and then release it. The ABS and traction control light will then stay on. Thus, the cruise control will not set. Also the rear brake light will not light when press on the pedal. Part Number for my 07 Spec B is 83370AA001. Link to comment Share on other sites More sharing options...
Pyman Posted October 6, 2020 Share Posted October 6, 2020 Nice! I was looking into that too. The switch stop lamp or brake light switch, I hear it's a common issue with a lot of Subaru's. There were days the ABS didn't come on for me, but it would eventually come back the next day or so. I did record a video and saw that my brake lights weren't working like they should when I use the brake pedal, but it seemed like I would have to push down hard for the lights to work just a bit. I'm going to try and replace that little brake switch. Should be easy, right? Thanks for reporting back! Link to comment Share on other sites More sharing options...
Pyman Posted October 15, 2020 Share Posted October 15, 2020 (edited) Replaced my brake light switch/stop lamp switch on my 2007 Subaru Legacy GT spec.B. ABS light is gone the first drive and hasn't come back on yet. Same Part Number for my car: 83370AA001 I ordered from Amazon because it was more convenient and a little cheaper for me: https://www.amazon.com/gp/product/B00L2OLNMW/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 https://imgur.com/xlJP8eQ https://imgur.com/3nyFzuV https://imgur.com/sFRHGi1 View looking up under the dash: https://imgur.com/K3fqUHw Two nuts https://imgur.com/AogZW6t Hope this helps! Edited October 15, 2020 by Pyman Uploading photos Link to comment Share on other sites More sharing options...
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