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Ebd warning light is on, no brakes - Rio Kia Cars & Trucks

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Most common cause is low brake fluid or air in antilock brake system due to low brake fluid. Check fluid and top up if low. Other suspects are not so easy. Sensors and wiring and modules and such. Just hope it's only low on fluid.

Posted on Dec 06, 2014

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Posted on Jan 02, 2017

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The spot for brakes on the dashboard has an IP lite up on it. what does that mean?


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A larger four-wheel disc brake system was standard, and a new optional antilock brake system (ABS Plus) was designed to increase effectiveness in turns by controlling yaw in full and partical siutations. ABS Plus included Electronic Brake Distribution (EBD), a new technology that automatically distributes braking forces between the front and rear axles, depending on how they can best be used, regardless of road surface. EBD replaced hydraulic proportioning valves and worked even when the tires had full traction, unlike most system

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Many audi and vw models manufactured starting in the later '90s and continuing to present, use the bosch 5.3 abs controller, which is prone to catastrophic failure, ostensibly due to defective design. this module controls multiple brake-related functions including the abs which is important for winter driving, but the most critical function of this module is probably the electronic brake force distribution, or ebd. these vehicles are designed such that if the ebd is inoperative, the proportion of hydraulic force applied to the rear brakes during emergency braking is as great as it is during moderate braking effort when there is minimal transfer of vehicle weight to the front wheels. the ebd is supposed to adjust the front/rear braking distribution dynamically according to the measure of the deceleration, so that the rear wheels will not lock up during emergency braking. if this module should fail during emergency braking on dry pavement, the rear wheels could lock up and cause an accident which could easily include fatalities. this is an expensive repair for owners, costing roughly $2000, and many owners have probably put off the repair indefinitely. evidence which can be found through a simple web search, suggests that the problem is widespread, and that if it has not already led to serious accidents, it is only a question of time. this problem is genuine, and vw/audi should be compelled to take immediate corrective action.

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How to turn off abs and service light on 53 plate megane just changed rear discs and pads


No one mentioned how to turn off the ABS completely ..I am interested in this too, is there a way as my ABS box is causing a problem, just had a faulty sensor replaced by Renault .... ABS activating just before I stop, I have checked the ABS sensors and ABS rings, they are ok.

Apr 24, 2011 | 2000 Renault 181

1 Answer

2005 jeep grand cheroke limited with A hemi, been to the dealer more times then I can count, and still to this day the same problem. The service elect brake system light illuminates intermit and so for...


The braking force of the rear wheels is controlled by electronic brake distribution (EBD). The EBD functions like a rear proportioning valve. The EBD system uses the ABS system to control the slip of the rear wheels in partial braking range. The braking force of the rear wheels is controlled electronically by using the inlet and outlet valves located in the HCU. The HCU is a Hydraulic control unit. The HCU consists of a valve body, pump motor, and wire harness.

Did they check for DTC (diagnostic trouble codes) in the system? if so, what were they?

Accumulators in the valve body store extra fluid released to the system for ABS mode operation. The pump is used to clear the accumulator of brake fluid and is operated by a DC type motor. The motor is controlled by the ABM.
The valves modulate brake pressure during antilock braking and are controlled by the ABM.
The HCU provides four channel pressure control individually to all the front and rear brakes. Each of the four channels control the rear & front wheel brakes individually.
During antilock braking, the solenoid valves are opened and closed as needed. The valves are not static. They are cycled rapidly and continuously to modulate pressure and control wheel slip and deceleration.
During normal braking, the HCU solenoid valves and pump are not activated. The master cylinder and power booster operate the same as a vehicle without an ABS brake system.
During antilock braking, solenoid valve pressure modulation occurs in three stages, pressure increase, pressure hold, and pressure decrease. The valves are all contained in the valve body portion of the HCU.


PRESSURE DECREASE The outlet valve is opened and the inlet valve is closed during the pressure decrease cycle.
A pressure decrease cycle is initiated when speed sensor signals indicate high wheel slip at one or more wheels. At this point, the ABM closes the inlet then opens the outlet valve, which also opens the return circuit to the accumulators. Fluid pressure is allowed to bleed off (decrease) as needed to prevent wheel lock.
Once the period of high wheel slip has ended, the ABM closes the outlet valve and begins a pressure increase or hold cycle as needed.


PRESSURE HOLD Both solenoid valves are closed in the pressure hold cycle. Fluid apply pressure in the control channel is maintained at a constant rate. The ABM maintains the hold cycle until sensor inputs indicate a pressure change is necessary.


PRESSURE INCREASE The inlet valve is open and the outlet valve is closed during the pressure increase cycle. The pressure increase cycle is used to counteract unequal wheel speeds. This cycle controls re-application of fluid apply pressure due to changing road surfaces or wheel speed.

Nov 09, 2010 | 2005 Jeep Grand Cherokee

3 Answers

Ebd light has come on..what is this???


It stands for Electronic Brake Distribution which is like an enhanced ABS that controls braking pressure based on weight distributuion. If it is on all the time and is not controlled by a switch, i would take it to the dealer to have them test the system.

Sep 12, 2009 | 2000 Daewoo Korando

2 Answers

I have a daewoo korando.. a light has appeared on dash...ebd ????


EBD is 'Automatic Brake Differential Lock' - should go out when you switch on the ignition.

Workshop manual available for free download on the Internet


Sep 12, 2009 | 2000 Daewoo Korando

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