SsangYong: Engine Euro 4. Manual - part 40

 

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SsangYong: Engine Euro 4. Manual - part 40

 

 

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

3

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

1. OVERVIEW OF ENGINE ECU

The engine ECUs are various according to the engine model (D27DT engine, D27DT engine with CDPF and D27DTP
(POWER UP) engine). For the D27DT engine with CDPF, the CDPF's function is controlled by the engine ECU with
its extra pin. For the D27DTP (POWER UP) engine, one connector is added to the engine ECU (2 connectors total)
to control the additional sensor, actuator and exhause gas control function.

ENGINE ECU

For the D27DTP (POWER UP) engine, the connector pin is added and DTC is changed as the following components
are added. the functions of engine ECU pin for D27DTP (POWER UP) engine and D27DTP engine are not same. For
more details, refer to the respective section.

1. E-EGR (Electric-Exhaust Gas Recirculation) Valve

It is electrically controlled by the ECU for precise control. Old version was controlled by the vacuum modulator.

2. Throttle Body

It is electrically controlled by ECU as E-EGR valve.

3. AQGS (Advanced Quick Glow System) Unit

The glow control relay (K-line communication with engine ECU) is deleted. The unit communicates via CAN
communication with engine ECU. Also, the number of pins is increased as glow plug's performance has been
improved (1000°C increase in approx. 2 seconds).

D27DTP (POWER UP) Engine ECU - Ver. 3.2

D27DT (Including CDPF) Engine ECU - Ver. 3.1

Connector A Connector  B

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

4

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

2. TERMINAL (PIN) ARRANGEMENT OF ECU

Description of ECU Terminals for D27DTP (POWER UP) Engine

ECU Connector A

(No.1 ~ 96)

ECU Connector B

(No.1 ~ 58)

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

Injector #2 (power supply)

Injector #5 (power supply)

Ex.Gas temp. sensor #2 ground (DPF)

-

Delta pressure sensor ground (DPF)

Ex.Gas temp. sensor #2 ground (DPF)

-

Fuel temperature sensor signal

E-EGR valve ground

-

Vehicle speed sensor signal

Vehicle speed sensor ground

-

Camshaft position sensor ground

-

#2 Knock sensor signal

-

-

-

Throttle body reference voltage

-

Throttle body flap position sensor signal

Ex.Gas temp. sensor #3 ground

-

Injector #1 (power supply)

Injector #4 (power supply)

Injector #3 (power supply)

B1

B3

B5

B2

B4

B6

B7

B8

B9

B10

B11

B12

B13

B14

B15

B16

B17

B18

B19

B20

B21

B22

B23

B24

B25

B26

B27

Main power (B+)

Main power (B+)

Main power (B+)

Main ground

Main ground

Main ground

-

PTC #1 relay control

-

#2 Accelerator pedal sensor

reference voltage

Auto cruise operation voltage

-

#2 Accelerator pedal sensor signal

#2 Accelerator pedal sensor ground

Auto cruise signal input

Auto cruise ground

Blower switch signal

PWM Electric fan control

Ignition key signal

-

-

Air cinditioner operation signal

Brake switch operation signal

#1 Accelerator pedal sensor

reference voltage

#1 Accelerator pedal sensor signal

#1 Accelerator pedal sensor  ground

-

Pin No.

Description

Connector A

Connector B

Remarks Pin No.

Description

Remarks

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

5

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

A28

A29

A30

A31

A32

A33

A34

A35

A36

A37

A38

A39

A40

A41

A42

A43

A44

A45

A46

A47

A48

A49

A50

A51

A52

A53

A54

A55

A56

A57

A58

A59

A60

A61

A62

-

Ex.Gas temp. sensor #1 signal (DPF)

Ex.Gas temp. sensor #2 signal (DPF)

Delta pressure sensor signal (DPF)

Fuel temperature sensor ground

E-EGR valve reference voltage

HFM temperature sensor signal

(Analog)

-

-

Camshaft position sensor reference

voltage

Camshaft position sensor signal

-

-

#2 Knock sensor ground

Ex.Gas temp. sensor #3 signal

-

-

-

#1 Knock sensor signal

#1 Knock sensor ground

-

Injector #5 ground

Injector #3 ground

Injector #4 ground

-

Delta pressure sensor voltage Ref.(DPF)

HFM sensor temperature sensor

(Digital)

-

Coolant temperature sensor ground

Coolant temperature sensor signal

-

Rail pressure sensor signal

Booster pressure sensor reference

voltage

HFM sensor ground

-

B28

B29

B30

B31

B32

B33

B34

B35

B36

B37

B38

B39

B40

B41

B42

B43

B44

B45

B46

B47

B48

B49

B50

B51

B52

B53

B54

B55

B56

B57

B58

-

-

-

-

-

Air conditioner refrigerant pressure

sensor reference voltage

-

Diagnosis connector

-

-

Clutch pedal switch input (battom)

-

Air conditioner pressure switch

ground

Check engine lamp

-

Brake pedal switch

Condenser fan (Lo) relay

Air conditioner refrigerant input

sensor signal

-

-

ECU main power relay

-

-

CAN-LO

CAN-HI

-

-

-

Immobilizer (K-Line)

-

-

Air conditioner compressor relay

PTC #2 relay control

Condenser fan  HI relay

-

-

-

-

-

Pin No.

Description

Connector A

Connector B

Remarks Pin No.

Description

Remarks

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

6

1491

ENGINE ECU

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

A63

A64

A65

A66

A67

A68

A69

A70

A71

A72

A73

A74

A75

A76

A77

A78

A79

A80

A81

A82

A83

A84

A85

A86

A87

A88

A89

A90

A91

A92

A93

A94

A95

A96

Booster pressure sensor signal

-

-

-

-

-

-

HFM sensor signal input

-

-

Injector #2 ground

Injector #1 ground

Throttle body drive (+)

-

Intake throttle valve (-)

-

Fuel filter water detection signal

-

Throttle body sensor ground

E-EGR valve sensor signal

Boost pressure sensor ground

Rail pressure sensor signal ground

-

Rail pressure sensor reference

voltage

Crankshaft position sensor (-)

Crankshaft position sensor (+)

-

-

Switchable engine mounting control

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Pin No.

Description

Connector A

Connector B

Remarks Pin No.

Description

Remarks

 

 

 

 

 

 

 

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