Hyundai Santa Fe (2006 year). Manual — part 252

BR -180

BRAKE SYSTEM

VARIANT CODING

The HECU is programmed with a variant code based on
the vehicle powertrain configuration. This variant code is

used to determine the appropriate ESP calculations. Vari-
ant code programming should be performed whenever an
HECU is replaced.

PCM(ECM)

PCM(TCM)

Vehicle

EEPROM

ESP-ECU

CAN

LJKG500Y

ESP/ESC SYSTEM

BR -181

PROCEDURE OF VARIANT CODING

1.

Install a PCM(ECM

＆

TCM)/ESP normally.

2.

Connect the scan tool to the data link connector lo-
cated underneath the dash panel.

3.

Select vehicle name.

4.

Select ANTI-LOCK BRAKE SYSTEM.

5.

Select the variant coding.

1. HYUNDAI VEHICLE DIAGNOSIS

MODEL : CM

SYSTEM : ANTI - LOCK BRAKE SYSTEM

04. ACTUATION TEST

05. SIMU - SCAN

06. AIR BLEEDING MODE

07. SOLENOID VALVES TEST
08. IDENTIFICATION CHECK

09. STEERING ANGLE SENSOR

11. DATA SETUP(UNIT CONV.)

10. VARIANT CODING

06-

SCMBR6580L

6.

Follow the next procedure according to the comment
.

1. 10 .VARIANT CODING

AIM

THIS FUNCTION RESET VARIANT CODE
AND INPUT THE NEW ONE IN EST.

PERFORM THIS FUNCTION WHEN YOU

REPLACE USED ESP FROM OTHER

VEHICLE OR OCCUR C1702 WITH

MIL ON.(ESP/EBD/ABS)

IF YOU READY, PRESS [ENTER] KEY.

*

EJBF505O

7.

Confirm the condition , and then push the "REST".

1. 10 .VARIANT CODING

VARIANT CODING

CONDITION

IG. KEY ON

ENGINE STOP

PRESS [REST], IF YOU ARE READY !

REST

EJRF703J

8.

If the procedure is finished, the screen is displayed as
shown below.

1.10 . VARIANT CODING

VARIANT CODING

IG KEY ON

PRESS [REST], IF YOU ARE READY !

REST

C

CALIBRATION COMPLETION!

TURN IG.KEY OFF AND ON 2TIMES.

EJRF703K

9.

IGN off.

10. IGN on.

11. The variant coding is completed.

CAUTION

If the warning lamp(ESP, EBD, ABS) is illuminated,
follow the "Variant coding" again.

BR -182

BRAKE SYSTEM

INPUT AND OUTPUT DIAGRAM

ESP Control

ABS Control

TCS Control

Output

ESP HECU

Input

Active Wheel

speed sensor

(FL)

Active Wheel

speed sensor

(FR)

Active Wheel

speed sensor

(RL)

Active Wheel

speed sensor

(RR)

Steering Wheel

Angle sensor

Yaw-rate & Lateral

Acceleration sensor

Master cylinder
pressure sensor

Primary
Secondary

Brake switch

ESP OFF switch

Hydraulic unit

-Intergrated with HECU

Warning Lamp

(ABS, EBD, ESP)

Diagnosis

K-Line

Function Lamp

(ESP)

Wheel speed

sensor output

PCM(ECM&TCM)

CAN

LJKG500X

ESP/ESC SYSTEM

BR -183

ESP OPERATION MODE

EA2472C6

1.

STEP 1
The ESP analyzes the intention of the driver.

Position of steering wheel
+ Vehicle speed
+ Acceleration pedal

ECU decides the intention of the driver.

EJRF502B

2.

STEP 2
It analyzes the movement of the ESP vehicle.

Vehicle rotation speed
+ Operated power to the side

ECU decides movement of the ESP vehicle.

EJRF502C

3.

STEP 3
he HECU calculates the required strategy, then actu-
ates the appropriate valves and sents torque control
requests via CAN to maintain vehicle stability.