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Power to the controller is provided through a relay in the power distribution center located on the left side of the engine compartment near the engine computer.īENDIX 10 ANTILOCK BRAKES FAULT DIAGNOSTICS The ABS controller in vehicles with the Bendix 10 system is usually found under the battery tray.
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This will illuminate both warning lights and disable the ABS system.
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The switch consists of a float and magnetic reed switch which closes when the fluid level is too low. The other monitors primary pressure (which Chrysler refers to as the "delta" pressure) in the master cylinder and is located on the left side of the hydraulic assembly.Ī fluid level switch on the reservoir keeps an eye on the fluid level. One monitors boost pressure and is located on the bottom of the modulator assembly. Each generates a voltage of 0.15 to 5 volts that is proportional to the amount of pressure. Two pressure sensors are also used in the Bendix 10 system on the modulator assembly to detect pressure problems. A problem here will illuminate both warning lights. There is also a differential pressure switch to detect pressures differences of more than 300 psi between the primary and secondary sides of the brake hydraulics. A fault message is set if the problem does not go away within two minutes. When the switch opens, the red Brake and yellow ABS warning lights are illuminated, and the ABS system is disabled. This switch also warns the ABS controller if accumulator pressure drops below 1,000 psi. The switch maintains accumulator pressure by turning the pump on when pressure drops below 1,600 psi, and off when pressure reaches 1,800 to 2,000 psi. This switch turns the remote pump motor on and off by grounding the pump motor relay through the starter solenoid. Other components on the modulator include a dual function pressure switch located on the bottom of the modulator. There is a fluid filter in the pump high-pressure line that can be serviced. The accumulator is a serviceable item, but it must be depressurized prior to removal by applying the brakes 40 times with the key off.Ī second low pressure accumulator that is precharged to 460 psi and uses a sliding piston rather than a diaphragm is located on the pump/motor assembly.
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The large high-pressure accumulator located on the master cylinder booster assembly is precharged with nitrogen to 1,000 psi, and has a normal operating pressure range of 1,600 to 2,000 psi. The system cycles 15 to 20 times a second during ABS braking with no loss of pedal height.īendix 10 has two accumulators. Pressure is provided by the accumulator and remote pump motor. It then energizes the decay solenoid so pressure can be released from the wheel, and reapplies brake pressure by deenergizing the decay solenoid and energizing the build solenoid. When wheel lockup is about to occur, the controller energizes the isolation solenoid to block off the brake circuit to the affected wheel. The extra isolation solenoid in this system helps reduce pedal pulsation and feedback during anti-lock braking. There are four isolation solenoid valves (one for each wheel), and three decay and 3 build valves for each of the front brakes and both rear brakes. It is called Bendix "10" because the hydraulic modulator contains 10 solenoid valves. The front brakes are controlled independently while the rear brakes are controlled as a pair. The Bendix 10 system divides the brakes into three-channels for anti-lock braking. The tone wheels for the front sensors are located on the outboard CV-joint housings, which means the CV joint has to be replaced if the ring is damaged. The system has four wheel speed sensors (all of which are nonadjustable). It is an expensive unit (OEM list price $1,510!). It uses an integral master cylinder/hydraulic modulator assembly with a remote pump and motor for power assist braking and anti-lock braking. It was used only three years and was discontinued after the 1993 model year.īendix 10 is similar to the Bendix 9 ABS system used on Jeeps from this vintage. The Bendix 10 ABS system was introduced in 1990 on the Chrysler New Yorker, Imperial, Fifth Avenue and Dodge Dynasty, also the 1991 Dodge Caravan and Plymouth Voyager minivans, and the Eagle Premier.
Bendix abs electrical wire connectors manuals#
Chrysler Dodge Plymouth Minivan Bendix 10 Antilock BrakesĪuto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, IndexĬhrysler Dodge Plymouth Minivan Bendix 10 Antilock Brakes by Larry Carley copyright 2019