Kia Carnival (2007 year). Manual — part 232

ECU CONNECTOR INPUT/OUTPUT(ABS)

Wire No.

Designation

Current

max.permissible

wire resistance

R_L (m

Ω)

min.leakage

resistance

R_P (k

Ω)

max

min

1

Ground for recirculation pump

20~39 A

10 A

10

4

Ground for solenoid valves
and ECU

5~15 A

2.5 A

10

2

Voltage supply for pump
motor

20~39 A

10 A

10

200

3

Voltage supply for solenoid
valves

5~15 A

2 A

10

200

18

Voltage for hybrid ECU

1 A

500 mA

60

200

5,10,17,19

signal wheel speed sensor FL,
FR, RL,RR

6 mA

16 mA

250

200 to

ground 1.5M

to bat

16,9,6,8

Voltage supply for the active
wheel speed sensor FL,FR,
RL, RR

6 mA

16 mA

250

200 to

ground 1.5M

to bat

14,24

wheel speed sensor output
(FR, RL)

20 mA

10 mA

250

200

11

Diagnostic wire K

6 mA

3 mA

250

200

22

ABS-warning lamp actuation

30 mA

5 mA

250

200

12

EBD-warning lamp actuation

30 mA

5 mA

250

200

20

brake light switch

10 mA

5 mA

250

200

15

CAN Low

30 mA

20 mA

250

200

26

CAN High

30 mA

20 mA

250

200

ABS HECU CONNECTOR

Connector terminal

Specification

Condition

Number

Description

1

Ground for recirculation pump

Current range: Min.10A

Max.20~39A

Always

4

Ground for solenoid valves and

ECU

Current range: Min.2.5A

Max.5~15A

Always

2

Voltage supply for pump motor

Battery voltage

Always

3

Voltage supply for solenoid valves

16

Voltage supply for the active

wheel speed sensor FL,FR, RL,

RR

Battery voltage

IG ON

9

6

8

5

signal wheel speed sensor FL,

FR, RL,RR

Voltage(High) : 0.89~1.26 V

Voltage (Low) : 0.44~0.63 V

On driving

10

17

19

11

Diagnostic wire K

Voltage (High)

≥ 0.8 * IG ON

Voltage (Low)

≤ 0.2 * IG ON

On SCAN TOOL

communication

18

Voltage for hybrid ECU

Battery voltage

KEY ON/OFF

20

Brake light switch

Voltage (High)

≥ 0.8 * IG ON

Voltage (Low)

≤ 0.3 * IG ON

BRAKE ON/OFF

SENSOR OUTPUT ON SCAN TOOL(ABS)

Description

Abbreviation

Unit

Remarks

1

Vehicle speed sensor

VEH. SPD

Km/h

2

Battery voltage

BATT. VOL

V

3

FL Wheel speed sensor

FL WHEEL

Km/h

4

FR Wheel speed sensor

FR WHEEL

Km/h

5

RL Wheel speed sensor

RL WHEEL

Km/h

6

RR Wheel speed sensor

RR WHEEL

Km/h

7

ABS Warning lamp

ABS LAMP

-

8

EBD Warning lamp

EBD LAMP

-

9

Brake Lamp

B/LAMP

-

10

Pump relay state

PUMP RLY

-

11

Valve relay state

VALVE RLY

-

12

Motor

MOTOR

-

13

Front Left valve(IN)

FL INLET

-

14

Front Right valve (IN)

FR INLET

-

15

Rear Left valve (IN)

RL INLET

-

16

Rear Right valve (IN)

RR INLET

-

17

Front Left valve (OUT)

FL OUTLET

-

18

Front Right valve (OUT)

FR OUTLET

-

19

Rear Left valve(OUT)

RL OUTLET

-

20

Rear Right valve (OUT)

RR OUTLET

-

2007 > 2.7L V6 GASOLINE >

DESCRIPTION

This specification applies to HCU(Hydraulic Control Unit) and ECU(Electronic Control Unit) of the HECU.(Hydraulic and
Electronic Control Unit)
This specification is for the wiring design and installation of ABS/TCS/ESC ECU.
This unit has the functions as follows.

a. Input of signal from Pressure sensor, Steering angle sensor, Yaw & Lateral G sensor, the wheel speed sensors

attached to each wheel.

b. Control of braking force / traction force/ yaw moment.

c. Failsafe function.

d. Self diagnosis function.

e. Interface with the external diagnosis tester.

Installation position : engine compartment

a. Brake tube length from Master cylinder port to HECU inlet port should be max. 1m

b. The position should not be close to the engine block and not lower than the wheel.

OPERATION

The ECU shall be put into operation by switching on the operating voltage (IGN).
On completion of the initialization phase, the ECU shall be ready for operation.
In the operating condition, the ECU shall be ready, within the specified limits (voltage and temperature), to process the
signals offered by the various sensors and switches in accordance with the control algorithm defined by the software
and to control the hydraulic and electrical actuators.

Wheel Sensor signal processing

The ECU shall receive wheel speed signal from the four active wheel sensors.
The wheel signals are converted to voltage signal by the signal conditioning circuit after receiving current signal from
active wheel sensors and given as input to the MCU.

Solenoid Valve Control

When one side of the valve coil is connected to the positive voltage that is provided through the valve relay and the
other side is connected to the ground by the semiconductor circuit, the solenoid valve goes into operation.
The electrical function of the coils are always monitored by the valve test pulse under normal operation conditions.

Voltage limits

a. Overvoltage

When overvoltage is detected(above 16.8 V), the ECU switches off the valve relay and shuts down the system.
When voltage is returned to operating range, the system goes back to the normal condition after the initialization
phase.

b. Undervoltage

In the event of undervoltage(below 9.3 V), ABS control shall be inhibited and the warning lamp shall be turned on.
When voltage is returned to operating range, the warning lamp is switched off and ECU returns to normal operating
mode.

Pump Motor Checking

The ECU performs a pump motor test at a speed of 15km/h once after IGN is switched on.

Diagnostic Interface

Failures detected by the ECU are encoded on the ECU, stored in a EEPROM and read out by diagnostic equipment
when the ignition switch is turned on.
The diagnosis interface can also be used for testing the ECU during production of the ECU and for actuating the HCU
(Air-bleeding line or Roll and Brake Test line).

Warning Lamp module