Checking the brake booster To check the operation of the brake booster, perform the following tests. 1. Start the engine and warm up for 1-2 minutes, then stop it. If the pedal is fully depressed...
Air release from master cylinder The master cylinder does not have a check valve, so (when there is no brake fluid in the master cylinder) air release should be made in the following sequence. 1. Fill...
Checking and replacing the brake pads of the front brakes The front brakes have a wear indicator that touches the brake disc and makes a squealing sound when the lining is 1.5mm thick. Attention: in case of replacement of pads,...
Checking the Disc Brake Rotor Attention: in order for the brakes to function properly, the measured values of the brake parts must be within the permitted limits. Before turning the brake disc, check...
Checking the thickness of the brake disc 1. Using a micrometer, check the disc thickness at 8 locations 45' apart and 10mm from the outer edge of the disc. Standard value: 28.0 nm, limit value: 26.4 mm....
Checking the thickness of the rear brake pads and drums Attention: in case of replacement of pads and pads, replace the units on both sides of the car; if the thickness of the pads on the left and right is significantly...
Checking the brake light switch Attach an ohmmeter to the switch terminals. The circuit must be open when the switch is pressed; closed - when released.
General description of the braking system Features of the braking system: 25.4 cm (10 inch) brake booster; 40.64 cm (16") disc brakes on the front wheels, allowing you to achieve a stable braking force and...
Brake Specifications Detail Standard value limit value brake pedal height 178.3-181.3mm Free travel of the brake pedal 3-8mm Gap between brake pedal and floor not less than 75 mm Brake force...
Brake system device 25.4 cm (10 inch) brake booster Dual type brake master cylinder with safety device Brake pedal with pedal kick-out prevention device The brake pedal kick-out prevention...
Removal and installation of the brake booster List of elements for drawings M2 7.028 - M2 7.029: 1. TJ level sensor connector. 2. Connecting the master cylinder to the brake line. 3. Master cylinder fixing nut. 4....
Dismantling and assembly of the main brake cylinder Disassembly is carried out in the order shown in the figure. Assembly is carried out in reverse order. 1. Tank cover; 2. Membrane; 3. Pin; 4. Reservoir; 5. Tank seal; 6....
Removal and. installation of front brake discs Note: TJ must be drained before removal. Removal is carried out in the order shown in the figure. Installation is in the reverse order. After installation, it is...
Checking the braking force Use a spring balance to measure the sliding moment of the hub in the forward direction. Attention: do not allow oil, grease and dirt to get on the sliding surfaces of...
Disassembly and assembly of the front disc brake In case of disassembly of disc brakes, it is recommended to disassemble and check both brakes (on the right and on the left side). 1. Screw; 2. Caliper bracket with pad,...
Removal and installation of a back drum brake Note: Before removing, loosen the parking brake adjusting nut and drain the TJ. 1. Brake drum - after removing the drum, disconnect the parking brake cable; 2. Spring...
Anti-lock braking system (ABS) — design description The ABS system controls the stability and control of the vehicle during hard braking. Vehicles with ABS are equipped with four sensors on the front and rear wheels,...
Wheel speed and acceleration sensor The wheel speed sensors consist of ABS rotors that rotate at the same speed as the wheels, and stationary sensors that detect the rotation speed of the rotors....
Checking wheel speed sensors Checking sensors Check the protrusion on the edge of the sensor for dirt and damage. Replace sensor if damaged. Check the resistance between the sensor terminals. Normal...
Removal and installation of the acceleration sensor Removing the back panel of the floor console Removal of the back panel of the floor console is made in the sequence specified in drawing M2 7.056. 1. Back panel cover...
Checking the acceleration sensor Disconnect the acceleration sensor connector and attach the special test cable (extension adapter to enable the sensor to be rotated to test voltage when exposed to the...
ABS warning indicator The ABS warning indicator comes on in the following cases: during the test after turning on the ignition for approximately 3 seconds; in the event of a malfunction in...
ABS electronic-hydraulic unit The electronic-hydraulic block is located in the right forward part of a motor compartment. It includes an electric pump, solenoid valves (inputs and outputs - two on...
TJ pressure control by ABS The ABS-ECU receives signals from the four wheel speed sensors, determines the speed and acceleration of each wheel, and calculates the vehicle speed. If you depress the...
TJ pressure control by EBD system Electronic brake force distribution (EBD) has its own electronic part with software and uses ABS actuators. The EBD system is designed to monitor and control the rear...
Self-diagnosis and fault codes of the ABS system Self-diagnostics when switching on the ignition The ABS-ECU performs a self-diagnosis after the ignition is switched on. At the same time, the ABS warning indicator...
Stability System General information Active Stability Control and Stability Control (ASTC) supplied as optional equipment. It combines the functions of an active stability control system...
Sensors of the course stability system Wheel speed sensors See chapter « Anti-Lock Braking System ». Vehicle acceleration and yaw sensor See acceleration sensor in chapter « Anti-Lock Braking System ». The...
The principle of operation of ASC and ATC systems The principle of operation of the active stability control system (ASC) The ASC system controls the turning moment with the help of the brake mechanism of each wheel....
Safe Mode and Stability Diagnostics Functions The ASTC-ECU regularly checks the incoming and outgoing signals. If an error is detected, the ECU gives a signal and the ASC indicator lights up. Depending on the nature...
Acceleration and yaw sensor — removal and installation In order to get to the acceleration and yaw sensor, you need to remove the rear and front floor panels (see « Removal and installation of the acceleration sensor » in...