SsangYong: Engine Euro 4. Manual - part 41

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

7

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

ENGINE

FUEL

I

N

T

AKE

EXHAUST

PRE-HEA

TING

LUB

COOLING

SWITCHABLE

ECU

DIAGNOSIS

AL

T

PTC relay box

PTC relay #1

PTC relay #2

Brake switch

AQGS unit

Immobilizer

Auto cruise control (A/T)

Accelerator 

pedal sensor

Diagnostic 

connector

Cluster and 

other units

Condenser 

fan (LO)

Condenser 

fan (HI)

A/C unit

A/C relay

Engine ground

Main relay

Engine mount

D27DTP

 (POWER UP) ENGINE

Switchable 

engine mounting 

solenoid valve

Fuel filter water 

detection

Starter

A/C pressure 

sensor

A/C 

switch

Cluster

Throttle body

Throttle body

VGT

 turbocharger 

vacuum modulator

E-EGR valve

IMV valve

HFM sensor

Rail 

pressure 

sensor

Camshaft 

position 

sensor

Booster 

pressure 

sensor

Crankshaft 

position 

sensor

Knock 

sensor #1

Knock 

sensor #2

Coolant 

temperature 

sensor

Fuel 

temperature 

sensor (HPP)

Oil pressure switch

Injector

E-EGR valve

IMV valve

HFM sensor

Rail 

pressure 

sensor

Camshaft 

position 

sensor

Booster 

pressure 

sensor

Crankshaft 

position 

sensor

Knock 

sensor #1

Knock 

sensor #2

Coolant 

temperature 

sensor

Fuel 

temperature 

sensor (HPP)

Injector

D27DTP (POWER UP) ENGINE’S ECU CIRCUIT

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

8

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

PTC relay box

PTC relay #1

PTC relay #2

Brake switch

Cluster

Immobilizer

Preheat 

control relay

Auto cruise control (A/T)

V

e

hicle with CDPF

Front 

exhaust 

gas 

temperature 

sensor

Rear 

exhaust 

gas 

temperature 

sensor

Diagnostic 

connector

A/C triple 

pressure switch

A/C unit

Blower 

switch

Condenser 

fan (LO)

A/C relay 

(S2)

Condenser 

fan (HI)

Engine main relay

D27DT ECU (including CDPF)

Starter

Fuel filter 

water sensor

IMV

valve

EGR 

valve 

vacuum 

modulator

Throttle body 

vacuum modulator

V

e

hicle with CDPF

Tu

rbocharger 

wastegate 

vacuum 

modulator

HFM sensor

Rail pressure 

sensor

Camshaft 

position sensor

Booster 

pressure 

sensor

Crankshaft 

position 

sensor

Knock 

sensor #1

Knock 

sensor #2

Coolant 

temperature 

sensor

Fuel 

temperature 

sensor

Injector

Engine ground

Accelerator 

pedal sensor

Clutch pedal 

switch (M/T)

Dif

ferential pressure sensor 

(         sensor)

V

e

hicle with CDPF

Neutral switch (M/T)

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

9

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

ENGINE

FUEL

I

N

T

AKE

EXHAUST

PRE-HEA

TING

LUB

COOLING

SWITCHABLE

ECU

DIAGNOSIS

Description of ECU Terminals for D27DT Engine and D27DT Engine
with CDPF

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Engine ground

Engine ground

Main power (B+)

Main power (B+)

Main power (B+)

Rail pressure sensor power supply

-

-

ECU power hold relay

-

-

Neutral switch

-

ACC2 sensor ground

-

-

Auto cruise OFF

Auto cruise safety switch

A/C pressure (Hi / Low)

-

-

-

-

-

Rail pressure sensor signal

Rail pressure sensor ground

-

Engine ground

-

-

Pin No.

D27DT Engine

Remarks

←
←
←
←
←
←

-

-

←

-

-

←

CDPF front exhaut temperature sensor

ground

←

-

-

←
←
←

-

-

Vacuum modulator for controlling throttle

body flap

-

-

←
←

-

←

-

-

D27DT + CDPF Engine

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

10

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

31

32

33

34

35

36

37

38

39

40

41

42

42

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

Auto cruise acceleration signal (for export)

ACC2 sensor signal

-

K-LINE # 1 (preheat/Immobilizer)

K-LINE # 2 (Self diagnosis connector)

Vehicle speed sensor signal input
(vehicle without ABS/ESP)

1G 1

Clutch pedal switch (M/T)

-

Fuel filter water detection sensor signal

-

-

-

Knock sensor signal (# 2)

Knock sensor signal (# 1)

Knock sensor ground (# 1)

-

-

-

Auto cruise completion signal

-

-

ACC 1 sensor ground

CAN - HI

-

-

ACC 2 sensor ground

Brake lamp switch(Stop lamp switch)

-

-

PTC # 1 relay

PTC # 2 relay

Knock sensor signal (# 2)

HFM sensor (air temperature signal)

-

Engine ground

Auto cruise deceleration signal

-

Pin No.

D27DT Engine

Remarks

CDPF front exhaut temperature

sensor signal

←

-

←
←
←

←
←

-

←
←

-

-

←
←
←

-

-

-

-

Vehicle pressure sensor

operating reference voltage (5V)

-

←
←

-

-

←
←

-

-

←
←
←
←

Vehicle pressure sensor ground

←

CDPF Rear exhaust temperature

sensor signal

CDPF Rear exhaust temperature

sensor ground

D27DT + CDPF Engine

Function is different

by systems