SsangYong Korando III (2010 year). Service manual — part 240

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1. OVERVIEW

The ESP (Electronic Stability Program) has been developed to help a driver avoid danger of losing

control of the vehicle stability due to understeer or oversteer during cornering. The yaw rate sensor,

lateral sensor and longitudinal sensor in the sensor cluster and the steering wheel angle sensor under

the steering column detect the vehicle conditions when the inner or outer wheels are spinning during

oversteer, understeer or cornering. The ESP ECU controls against oversteer or understeer during

cornering by controlling the vehicle stability using input values from these sensors and applying the

braking force to the corresponding wheels independently. The system also controls the engine power

right before the wheel spin synchronized to decelerate the vehicle automatically in order to maintain the

vehicle stable during cornering.

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3. ESP OFF switch

Located on the left side of
instrument panel.

2. Steering wheel angle

sensor

Located on column shaft with
contact coil.

1. HECU assembly

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

2. COMPONENTS

4. Sensor cluster

Located on the floor under front
passenger seat.

5. Wheel speed sensor

(4WD/2WD-front)

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

6. Rear wheel speed sensor

(2WD)

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

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3. PRECAUTIONS

The warning lamp flashes and warning beep sounds when the ESP is operating

When the ESP operates during vehicle movement, the ESP warning lamp on the instrument panel

flashes and beep comes on every 0.1 second. The ESP system is only a supplementary device for

comfortable driving. When the vehicle exceeds its physical limits, it cannot be controlled.

Do not rely on the system. Keep on the safe driving.

Feeling when ESP is working

When the ESP system activates, the feeling can be different depending on vehicle driving conditions.

For example, you will feel differently when the ESP system is activated during the ABS is operating

with the brakes applied and when the brakes are not applied on a curve.

If the ESP system operates when the brake is applied, the brake pressure will be increased on the

corresponding wheel which already has braking pressure for the ESP controls.

ARP Operation

During the ARP operation, vehicle safety (rollover prevention) takes the first priority and thus,

stronger engine control is in effect. Consequently, the vehicle speed decreases rapidly, so the driver

must take caution for the vehicle may drift away from the lane.

Noise and vibration that driver feels when ESP system is operating

The ESP system may transfer noise and vibration to the driver due to the pressure changes caused

by the motor and valve operations in a very short period of time. And, keep in mind that the output

and vehicle speed could be decreased without rpm increase due to the ASR function that controls

the engine power.

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4. WARNING LAMPS

1) ABS

ABS warning lamp module indicates the self-diagnosis and malfunction.

ABS warning lamp ON: Warning Lamp

When turning the ignition switch to ON position, ABS warning lamp comes on for 3 seconds for self-

diagnosis and goes off if the system is OK (initialization mode).

When the system is defective, the warning lamp comes on.

When the self-diagnosis is performing, the warning lamp comes on.

When the HECU connector is disconnected, the warning lamp comes on.

ABS is not available during lamp ON. In this condition, Only normal brake system without ABS

function is available.

When the communication between warning lamp CAN module in meter cluster, the warning lamp

comes on.

1.

2.

3.

4.

5.

6.

ABS warning lamp

Brake warning lamp

ESP OFF indicator

ESP warning lamp/indicator

EBD warning lamp

1.

2.

3.

4.

5.