Monday, October 12, 2009 - 12:51 am, by: Narvey Vilaythong(El_pablo)
hi guys, when i bought my car i realized that there was the hand brake light on my car and the TRC that stayed on the dash which means there is a problem somewhere in my braking system. It all starts when you switch the key to the "on" position, the pump will kick in for about 20 sec the stop and continuously pumps at a pulsing rate, like on, off, on off on off until you apply the brakes it will continuously pump until you take it off then will start pulsing again, the lights in the car will also pulse like there is alot of power being uses. I have observed the brake reservoir from when the key is in the "on" position, as the pump kicks in the fluid will slowy decrese about to the mark of min. Braking while driving feels fine just only that the pump constantly runs but shuts off when everything is off. What cold be my problem? From my research, the only things i can think of is that there is air in my system or the accumulator is low. Can anyone help out?
Monday, October 12, 2009 - 10:04 am, by: Aiden Cheese(Chillpen)
Hi this is increasingly more common with brake accumulated braking systems. Mine does it, the current theories are often that the accumulator needs to be regassed or the actual pump is no longer pumping correctly, or the switch is faulty which tells it when and when not to pump. There are a few threads around like:
Mine doesn't come up with a ABS warning (unless without moving the car I hold the brakes on from when i start the car for a minute or so without moving) it instead has another error which reads the japanese characters as something along the lines of "Brakee shishtem" (or how my japanese student friend reads it, clearly brake system though).
It pumps especially constantly when the car and outside tempreature is cold.
Good luck have a read through those to give you an idea of what to check and hopefully do your best to get it fixed. Its a tricky problem..
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