SsangYong Korando III (2010 year). Manual — part 234

10-3

4890-00

1. SPECIFICATION

Unit

Description

Specification

ABS

ESP

HECU

Clock frequency

32 MHz

50 MHz

Memory

128 KB

512 KB

Switch

Orifice

Orifice

Wheel speed

sensor

ABS / ESP

CBS

Operating temperature

- 40°C to 150°C

- 40°C to 150°C

- 40°C to 115°C

- 40°C to 115°C

Operating frequency

1 to 2,500 Hz

1 to 8,000 Hz

Operating voltage

4.5 to 16 V

3.3 to 18 V

G-sensor

ABS

CBS / ESP

Operating voltage

4.75 to 5.25 V

N/A

Operating temperature

- 30°C to 85°C

Operating range

-1.5 to 1.5 g

Output voltage

0.5 to 4.5 V

10-4

ABS / ESP

CBS

Circuit diagram of wheel speed sensor

▶

10-5

4890-00

1. SYSTEM OVERVIEW

1) What is ABS?

When braking suddenly or braking on slippery roads, the vehicle keeps moving forward but the wheels

are locking and not rotating. If these happen, the vehicle may lose stability or rotate resulting in an

accident. ABS helps to maintain directional stability and control of the vehicle. ABS is designed to

secure more safety and increase the control of steering wheel during emergency braking situation. But,

ABS does not guarantee perfect safety beyond its physical limit. ABS in this vehicle contains EBD

function. In normal driving conditions, the brake system operates without ABS function.

2) What is EBD (Electronic Brake-force Distribution)?

EBD is an automobile brake technology that automatically varies the amount of force applied to each of a

vehicle's brakes, based on road conditions, speed, loading, etc. Always coupled with anti-lock braking

systems, EBD can apply more or less braking pressure to each wheel in order to maximize stopping

power whilst maintaining vehicular control. EBD does not operate when ABS is working.

ABS effect according to braking conditions

▶

Braking on split road

Maneuvering while braking

10-6

3. G-sensor (for 4WD)

Located on the floor under
parking brake bracket in center
console.

4. Rear wheel speed sensor

(for 2WD)

Located on knuckle. The
appearance is different from that
for 4WD.

4. Wheel speed sensor

(for 4WD)

Located on knuckle. The
appearance of front sensor is
same with rear sensor.

2. ABS warning lamp

EBD warning lamp (ABS warning lamp +
Brake warning lamp)

1. ABS hydraulic device and control unit

Located under the power steering fluid reservoir and
contains the pressure sensor.

2. COMPONENT