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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