SsangYong Rexton. Service manual - part 592

 

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SsangYong Rexton. Service manual - part 592

 

 

SSANGYONG  Y200

5D2-16  TRANSFER CASE - TOD

DEFINITION OF TERMINOLOGY

Definitions

Rear Speed Sensor

Description

A Hall Effect speed sensor which produces a square wave. 0-5Vdc signal in response

to a rotating 30 tooth wheel coupled to the rear propeller shaft inside the Transfer

Case.

Each rotation of the rear propeller shaft will result in 30 speed sensor pulse.

A Hall Effect speed sensor which produces a square wave. 0-5Vdc signal in response

to a rotating 30 tooth wheel coupled to the front propeller shaft inside the Transfer

Case.

Each rotation of the front propeller shaft will result in 30 speed sensor pulse.

An Electromagnetic clutch used to control the amount of torque applied to the front

propeller shaft.

TOD is an abbreviation of Torque On Demand and means that the torque is transferred

according to the operating condition.

TPS is an abbreviation of Throttle Position Sensor. For MSE engine, the potentiometer

in the throttle actuator acts as TPS.

PWM is an abbreviation of Pulse Width Modulation and is a type of output value

control by adjusting pulse width.

Duty Cycle is the time the EMC is on divided by the period in which it is being modu-

lated.

A minimum amount of duty cycle applied to the EMC.

A condition where the front propeller shaft is turning at a rate which is faster than the

rear propeller shaft.

A condition where the rear propeller shaft is turning at a rate which is faster than the

front propeller shaft.

The highest (numerically lowest = 1 : 1) gear ratio between the input and outputs of

the Transfer Case.

The lowest (numerically highest = 2.48 : 1) gear ratio between the input and outputs of

the Transfer Case.

Front Speed Sensor

EMC (Electromagnetic

Clutch)

TOD

TPS (Throttle Position

Sensor)

PWM

Duty Cycle

Touch-off

Front Overrun

Rear Overrun

High Range

Low Range

YAD5D120

TRANSFER CASE - TOD  5D2-17

SSANGYONG  Y200

Definitions

4H/4L Switch

Shift Motor

Position Encoder

Neutral Safety Switch

Shift Inhibit Speed

Description

A switch which selects the desired gear ratio.

Electric motor which changes the Transfer Case range.

A set of 4 Gray code switches which provide feedback to the TOD indicating the

position of the Shift Motor.

A switch on vehicles equipped with a manual transmission which indicates that the

clutch pedal is depressed.

A switch on vehicles equipped with an automatic transmission which indicates that the

transmission is in neutral.

The vehicle speed above which Transfer Case shifts are disallowed. Vehicle speed is

indicated by propeller shaft speed measurement.

SSANGYONG  Y200

5D2-18  TRANSFER CASE - TOD

CONTROL UNIT

Input/Output diagram

TOD control unit and main wiring harness is linked by
30 pin connector. Each pin joins with switch and
actuator whose details refer to the below diagram.

YAD5D130

TRANSFER CASE - TOD  5D2-19

SSANGYONG  Y200

Description

TOD control unit ground

TOD control unit battery supply : (Fuse No 13,20A)

Ignition ON / OFF

Position encoder 1

: check of shift motor position

Position encoder 2

: check of shift motor position

Position encoder 3

: check of shift motor position

Position encoder 4

: check of shift motor position

Transfer case mode input

Check of neutral gear position in Auto T/M

5V supply (TPS / speed sensor)

Front speed sensor signal input

Rear speed sensor signal input

ABS ON / OFF

Brake Switch ON/OFF Signal Input

CAN bus low line

CAN bus high line

Connect to Diagnostic Connector No. 15

Motor output port

-

LO to HI : join with battery

-

HI to LO (or motor brake) : join with ground

Motor output port

-

HI to LO : join with battery

-

LO to HI (or motor brake) : join with ground

TOD Output

When the transfer case is in “4L” mode, illumi-

nates “4L” indicator.

Position encoder ground

Illuminates “4L” indicator “4WD check lamp” turns

ON Upon defect ; Ground circuit

Ground for speed sensor / TPS

Pin No.

17,18

4,19

5

27

10

28

30

9

24

12, 16

11

29

25

26

22

23

20

3

21

6

7

13

Pin Name

Ground

Input

Ignition

Position 1

Position 2

Position 3

Position 4

4H/4L Switch

Auto T/M Neutral

Speed Voltage Supply

Front Speed

Rear Speed

ABS Operation

Brake Switch

CAN-L

CAN-H

K-LINE (1)

Motor LO-HI

Motor HI-LO

EMC

4L Illumination

Position Return

Self Diagnosis Display

Speed

Classification

Power Supply

Signal Input

Signal Output

(1) K-LINE : It means that Communication line for coding and diagnosis with diagnostic scanning tool.

 

 

 

 

 

 

 

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