Chevrolet Trax: Hydraulic brake system description and operation
System Component Description
The hydraulic brake system consists of the following:
Hydraulic Brake Master Cylinder Reservoir
Contains a supply of brake fluid for the hydraulic brake system.
Hydraulic Brake Master Cylinder
Converts mechanical input force into hydraulic output pressure.
Hydraulic output pressure is distributed from the master cylinder through two hydraulic circuits, supplying diagonally-opposed wheel apply circuits.
Hydraulic Brake Pressure Balance Control System
Regulates brake fluid pressure delivered to hydraulic brake wheel circuits, in order to control the distribution of braking force. Pressure balance control on non-ABS equipped vehicles, is achieved through a proportioning valve assembly. Pressure balance control on ABS equipped vehicles, is achieved through electronic brake distribution (EBD), which is a function of the ABS modulator.
Hydraulic Brake Pipes and Flexible Brake Hoses
Carries brake fluid to and from hydraulic brake system components.
Hydraulic Brake Wheel Apply Components
Converts hydraulic input pressure into mechanical output force.
System Operation
Mechanical force is converted into hydraulic pressure by the master cylinder, regulated to meet braking system demands by the pressure balance control system, and delivered to the hydraulic brake wheel circuits by the pipes and flexible hoses. The wheel apply components then convert the hydraulic pressure back into mechanical force which presses brake linings against rotating brake system components.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
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Diagnostic information and procedures
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
DIAGNOSTIC INFORMATION AND PROCEDURES
SYMPTOMS - PARK BRAKE
NOTE: Review the system operation in order to familia
SEE MORE:
Clutch pedal position sensor learn
NOTE:
The clutch pedal position (CPP) sensor learn procedure is required when
the
following service procedures have been performed regardless of whether DTC
P080A is set:
An engine control module (ECM) replacement
A CPP sensor replacement
Any repairs which affect the CPP sensor relationship
Parking brake adjustment (drum brake)
NOTE: The park brake cable adjusting nut is a nylon lock type. Use
ONLY HAND
TOOLS whenever tightening or loosening the adjusting nut.
Apply and fully release the park brake several times. Verify that the
park brake lever releases completely.
Turn ON the ignition. Verify the red BRAKE warning
