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eyob07
User
Sep 7, 2018, 4:35 PM
Post #1 of 13
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Hello everyone, this is my friend's 2005 sienna the BRAKE light is on the dashboard, we check the fluid level is ok, and there is no brake issue, what could cause the brake light to come on, by the way, the VSS is not working we have the code p 500. is this related,
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Hammer Time
Ultimate Carjunky
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Sep 7, 2018, 4:47 PM
Post #2 of 13
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Re: brake light on
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On a Toyota when you have an engine code it also lights up other lights. Fix the VSS first and that will probably resolve the issue. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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eyob07
User
Sep 7, 2018, 5:21 PM
Post #3 of 13
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Re: brake light on
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thank you and GOD bless you.
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eyob07
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Sep 7, 2018, 5:24 PM
Post #4 of 13
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Re: brake light on
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do you have the picture that shows the location of the VSS,
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Hammer Time
Ultimate Carjunky
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Sep 7, 2018, 5:27 PM
Post #5 of 13
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Re: brake light on
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2WD or 4WD ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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eyob07
User
Sep 7, 2018, 5:51 PM
Post #6 of 13
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Re: brake light on
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2wd
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Hammer Time
Ultimate Carjunky
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Sep 7, 2018, 6:00 PM
Post #7 of 13
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Re: brake light on
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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eyob07
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Sep 7, 2018, 6:26 PM
Post #8 of 13
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Re: brake light on
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thank you very much
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Hammer Time
Ultimate Carjunky
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Sep 7, 2018, 7:58 PM
Post #9 of 13
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Re: brake light on
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You're welcome. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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eyob07
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Sep 8, 2018, 10:15 AM
Post #10 of 13
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Re: brake light on
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Hello, thank you for all the help but, I replace the sensor with known good, still doesn't work, my question is there are two wires that go to the sensor, want to know if the ground side of the circuit is computer controlled, if not then I can cut the ground wire and create my own ground, assuming power is there.
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Hammer Time
Ultimate Carjunky
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Sep 8, 2018, 12:40 PM
Post #11 of 13
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Re: brake light on
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No,no, no.......... Don't do that. Definitely no. There isn't a whole lot of info available concerning the speedometer circuit but i did see that there are 2 speed sensors in the transaxle. The second one is at the rear of the transaxle. No picture available. On further review, that one doesn't seem to be connected to speed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Sep 8, 2018, 12:42 PM)
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Hammer Time
Ultimate Carjunky
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Sep 8, 2018, 12:47 PM
Post #12 of 13
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Re: brake light on
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It appears the speedometer uses ABS speed sensors DTC P0500 VEHICLE SPEED SENSOR "A" CIRCUIT DESCRIPTION DTC Detection Condition The speed sensor for skid control ECU detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU converts these signals into a 4-pulse signal and outputs it to the combination meter. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pulse signals. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
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Sep 8, 2018, 12:55 PM
Post #13 of 13
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Re: brake light on
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I can't find anything that tells me which sensor is sensor "A". You may have to use a good scan tool to monitor wheel speed sensors to look for a bad one. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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