SsangYong: Engine Euro 4. Instruction - page 49

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1491

DIAGNOSIS

D27DTP/D27DT (EU4) SM - 2006.08

D27DTP/D27DT (EU4)

ENGINE

FUEL

I

N

T

AKE

EXHAUST

PRE-HEA

TING

LUB

COOLING

SWITCHABLE

ECU

DIAGNOSIS

11. Select “6] INJECTOR (C2I or C3I) CORRECTIONS” and press “ENTER”. Remove the engine acoustic cover and

enter the 16 or 20 character code on each injector label for all injectors.

Enter the correct injector code after pressing

with the ignition “ON”.

(The nearest injector from the radiator is number 1 and the number goes higher as it moves away.)

12. Select “7] VARIANT CODING” and press

to

change the item.

* The figure shows that C2I is not coded.

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DIAGNOSIS

D27DTP/D27DT (EU4) SM - 2006.08

D27DTP/D27DT (EU4)

1. Select the vehicle model.

2. Select “2] RAIL PRESSURE RESET” on “MISCEL-

LANEOUS SELECTION” screen.

The engine ECU needs a specific amount of fuel according to the fuel supply lines and vehicle driving conditions.

However, if the fuel supply (pressure) is not achieved due to, for instance, defective fuel system, ECU designates the
offset value to the high pressure pump to compensate it.

The fuel supply pressure varies according to the offset value and the engine output could be decreased due to this
variation. When the engine output decreases, check whether all rail pressure offset values is set to 0 in the Rail
Pressure Reset screen in SCAN-100.

If the setting value is not 0, measure the fuel pressure with a tester. If any defective is found, repair the affected
components and reset the rail pressure offset value to 0.

The rail pressure reset procedures should be done after replacing any high pressure pump and fuel system
related components.

Rail Pressure Initialization

Rail Pressure Reset Procedures

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DIAGNOSIS

D27DTP/D27DT (EU4) SM - 2006.08

D27DTP/D27DT (EU4)

ENGINE

FUEL

I

N

T

AKE

EXHAUST

PRE-HEA

TING

LUB

COOLING

SWITCHABLE

ECU

DIAGNOSIS

3. Enter the current rail pressure value and press

to reset the offset value.

4. The screen returns back to step 3 after displaying

the [RAIL PRESSURE RESET IS SUCCESSFUL]
message.

• If the offset value is not set to 0, check the fuel

pressure and other DTC generations before
starting the rail pressure reset operation.

NOTICE

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DIAGNOSIS

D27DTP/D27DT (EU4) SM - 2006.08

D27DTP/D27DT (EU4)

DTC: Diagnostic Trouble Code

1. OVERVIEW FOR THE CHANGES IN DTC BY ENGINE

The DTC in this section is for the vehicle shipped after 03/06. For the vehicle shipped before 03/06, refer to the
previously released DTC.

There are some changes in DTC due to the newly equipped D27DTP (power up) engine.

In this section, DTCs are for both D27DTP (power up) and D27DT engines. The contents only for D27DTP engine are
shaded.

New DTCs have been added and some DTCs have changed, since E-EGR valve, throttle body, switchable engine
mounting and AQGS have been applied to the D27DTP (power up) engine.

The followings are the specfications and changes in the systems according to the D27DTP (power up) engine and
D27DT engine.

Specifications (Based On ECU)

ECU Ver.

No.

Connector

Flash memory

EGR

VGT

Throttle body

HFM sensor ver.

Cooling fan

Air conditioner pressure
sensor

Accelerator pedal
sensor #1, #2

Switchable engine
mounting

AQGS

Immobilizer

Neutral switch (M/T)

DCM 3.1

665 540 01 32

121pin (1 Connector)

448

-

Vacuum modulator control

(PWM)

Vacuum modulator control

(PWM)

N/A

HFM5

Viscous electric fan

(RLY On/Off)

N/A

5V / 2.5V

N/A

N/A

Applied

Applied to vehicle with M/T

DCM 3.2

665 540 04 32

154 pin (2 Connector)

512

2048

ECU Electric control (PWM)

Vacuum modulator control

(PWM)

Electric control type (DC Motor)

HFM6

Viscous electric fan

(RLY On/Off)

Applied

5V / 5V

Applied

Applied

Applied

N/A

Kbyte

Kbyte

E-EGR + EGR position
feedback function (DCM3.2)

DCM3.1 (WGT) /
DCM3.2 (VGT)

* Triple-action pressure
switch (DCM3.1)

Changes in reference
voltage

RLY On/Off control

Glow control relay is
available in D27DT.

Option

The D27DT engine
received signals via
wiring. However, now, it
receives signals via CAN.

D27DT Engine

D27DTP (power up) Engine

Remarks

Inner

Outerexport

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