SsangYong Actyon Sports II. Service manual - part 154

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4890-10

2) Component Overview By System

3) Part Overview By System

Part

Vehicle with ABS

Vehicle with ESP

HECU

Yes

Yes

Front wheel speed sensor

Rear wheel speed sensor

ABS warning lamp

EBD indicator lamp

G sensor (integrated in HECU)

4WD: Yes, 2WD: No

No

Sensor cluster (Yaw rate sensor + 

lateral sensor+ G sensor)

No

Yes

ESP operation indicator lamp and 

warning lamp

ESP OFF switch and indicator

Steering wheel angle sensor

Function

Vehicle with ABS

Vehicle with ESP

ABS

Yes

Yes

EBD

Yes

HBA

No

ARP

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4. 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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5. WARNING LAMPS

1) ABS Warning Lamp

ABS warning lamp module indicates the self diagnosis and malfunction.

ABS warning lamp ON:

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 disengaging the connector, 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.

ABS warning lamp

Brake warning lamp

ESP OFF indicator

ESP warning lamp/indicator

EBD warning lamp

1.

2.

3.

4.

5.

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2) EBD (Electronic Brake-force Distribution) Warning Lamp (Brake 
    Warning Lamp)

EBD warning lamp when the system perform the self diagnosis and when it detects the malfunction of 

EBD system. However, the brake warning lamp comes on regardless of EBD when the parking brake is 

applied.

EBD warning lamp ON:

When turning the ignition switch to ON position, ABS warning lamp and the brake warning lamp 

comes on for 3 seconds for self diagnosis and goes off if the system is OK (initialization mode).

When applying the parking brake, the brake warning lamp comes on.

When the brake fluid is not sufficient, the brake warning lamp comes on.

When disengaging the connector, the warning lamp comes on.

When the system is defective, ABS warning lamp and the brake warning lamp come on 

simultaneously.

1.

2.

3.

4.

5.

When the solenoid valve is defective

When one or more wheel sensors are defective

When ABS HECU is defective

When the voltage is abnormal

When valve relay is defective

a.

b.

c.

d.

e.

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

lamp comes on.

6.

3) ESP OFF Indicator

ESP OFF indicator ON:

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

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

When the ESP OFF switch is pressed to turn off ESP function, ESP OFF indicator comes on.

1.

2.

4) ESP Warning Lamp

ESP warning lamp ON:

When turning the ignition switch to ON position, ESP 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 ESP function is activated, ESP warning lamp blinks with the interval of 2 Hz.

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

comes on.

1.

2.

3.

4.

5.

5)  ESP OFF Switch

If ESP OFF switch is pressed, ESP function is deactivated and the ESP OFF indicator in the instrument 

cluster comes on.

To resume the ESP function, press the switch again. At this time, ESP OFF indicator goes out.