relay SSANGYONG NEW ACTYON SPORTS 2013 Service Manual

01-6
3. ENGINE COMPARTMENT LAYOUT
Do not work on the engine compartment while the engine, radiator, exhaust manifold, muffler or
catalytic converter is hot. Always turn the engine off and allow it to cool before starting the
maintenance.
Regularly check the engine oil level and add Ssangyong genuine engine oil if necessary.
Clean the dipstick with clean cloth so that any foreign materials cannot get into the engine. -
-
-
Power steering fluid
reservoirBrake fluid reservoir
Fuse & relay
Engine oil dipstick
gaugeWasher fluid
reservoir cap Engine oil filler cap
Air cleaner
Operating vehicle with insuffi cient amount of oil can damage the engine. Make sure the engine oil
level is correct and add oil if necessary.
Coolant reservoir

01-14
7. CODING AND INITIALIZATION
1) Engine Variant Coding
Unit Selection Description Remarks
Additional heater YES For PTC auxiary heater equipped
vehicle, select "YES"YES
NO -
Gear box 5 MT "DSI 6 AT" is selected
automatically.-
6 MT Select
5 AT(DC 5 AT) -
6 AT(DSI 6 AT) Select
7 AT(DC 7 AT) -
Immobilizer NO Select "YES" if the vehicle has
immobilizer.-
YES YES
Fan PWM control Select "PWM" PWM fan
Relay -
Engine level control NO
YES
SKM key NO NO
YES -
Glow plug AQGS (CAN) Select "AQGS" AQGS (CAN)
Relay (K-line) -
A/C Refrigerant pressure
sensorSelect the appropriate system. Pressure sensor
for A/C refrigerant
NO -
Vehicle speed sensor CAN Select "CAN" if the vehicle has
ABS or ESPCAN
WIRE -
Cruise control YES Select "YES" if the vehicle has
cruise control.YES
NO -
G-sensor YES 2WD ABS & Non-ABS: NO
4WD ABS & ESP: YESSelect
NO Select

15-4
Power supply line to HFM sensor (Hot Film Air-Mass Sensor) changed
Power supply line to HFM sensor changed from power supply line to rear end of the engine main relay
controlled by the ECU to IGN1+ power supply line (engine control wiring C115 No. 13 terminal added)
2. CHANGES IN ENGINE CONTROL
Engine control wiring
(C115)

15-390000-00
HFM (intake air
temperature)Cooling fan
module
DSI 6 A/T (ATF
temperature)Coolant
temperature
sensor
Refrigerant
pressure sensor
Relay box
(12) Cooling fan control
A. Overview of cooling fan and A/C compressor
The cooling system maintains the engine temperature at an efficient level during all engine operating
conditions. The water pump draws the coolant from the radiator. The coolant then circulates through
water jackets in the engine block, the intake manifold, and the cylinder head. When the coolant reaches
the operating temperature of the thermostat, the thermostat opens. The coolant then goes back to the
radiator where it cools. The heat from automatic transmission is also cooled down through the radiator
by circulating the oil through the oil pump. ECU controls the electric cooling fans with three cooling fan
relays to improve the engine torque and air conditioning performance.
For detailed information, refer to Chapter "Air Conditioning System".
B. Components
A/C compressor
D20DTR ECU

15-410000-00
D. Cooling fan and A/C compressor control
Conditions for cooling fan ▶
The cooling fan module controls the cooling fan relay, high speed relay and low speed relay. The cooling
fan is controlled by the series and parallel circuits.
A/C switch Cooling fanCoolant temperature Refrigerant pressure
A/C
compressor
OFF OFF Coolant temp. < 90℃ -
LO 90℃ ≤ Coolant temp.
< 105℃-
HI 105℃ ≤ Coolant temp. -
ONLO
Coolant temp. < 105℃Refrigerant pressure <
18 bar
ON
HI 18 bar ≤ Refrigerant
pressure
HI 105℃ ≤ Coolant temp.
< 115℃-
HI115℃ ≤ Coolant temp. -
OFF (cut)
A/C compressor OFF conditions ▶
Coolant temperature: below -20℃ or over
115℃
Approx. 4 seconds after starting the engine
Engine rpm: below 650 rpm or over 4500 rpm
When abrupt acceleration
Refrigerant pressure:
* OFF below 2.0 kg/㎠, then ON over 2.4 kg/㎠
* OFF over 30 kg/㎠, then ON below 21.4 kg/㎠ -
-
-
-
-
The output voltage from refrigerant pressure sensor is 1.7 V to 3.5 V when the refrigerant pressure is 10
to 24 kgf/㎠ with A/C "ON".Output voltage according to refrigerant pressure ▶
Cooling fan controls according to ATF ▶
ATF temperature Fan condition Remark
Over 110˚CHigh speed -

15-42
Relay box in engine compartment
(13) PTC heater control
A. Overview
The supplementary electrical heater is installed in DI engine equipped vehicle as a basic equipment. The
PTC system is operated according to two temperature values measured at the coolant temperature
sensor and HFM sensor. This device is mounted in the heater air outlet and increase the temperature of
air to the passenger compartment. Because PTC system is heated by electrical power, high capacity
alternator is required. PTC does not operate during engine cranking, while the battery voltage is lower
than 11 V or during preheating process of glow plugs.
B. Components
HFM (intake air
temperature)
Coolant temperature
sensorPTC heater
PTC 2 relay (PTC
heater 2, 3)
PTC heater
3 (40A)
PTC heater
2 (40A)
PTC heater
1 (40A)
D20DTR ECU
PTC 1 relay
(PTC heater 1)

15-430000-00
C. Operation process
The ceramic PTC has a feature that the resistance goes up very high at a certain temperature. There
are three circuits in PTC heater. Only one circuit is connected when PTC1 relay is ON, and two circuits
are connected when PTC2 relay is ON.
<00760097008c00990088009b0090009600950047009700990096008a008c009a009a006100470099008c0088008a008f008c009a00470088009b004700880047008a008c0099009b0088009000950047009b008c00940097008c00990088009b009c009900
8c02e7008f0090008e008f00470099008c009a0090009a009b>ance→low current→less heat
<00990088008b00900088009b00900096009502e7009b008c00940097008c00990088009b009c0099008c0047008b0096009e009502e7008f0090008e008f00470099008c009a0090009a009b00880095008a008c02e7008f0090008e008f0047008a009c00
990099008c0095009b02e7009b008c00940097008c00990088>ture up

02-6
1) Starting Mode
When the ignition is turned ON, the ECM turns the fuel pump relay on for 1 second. The fuel pump then
builds fuel pressure. The ECM also checks the Engine Coolant Temperature (ECT) sensor and the
Throttle Position (TP) sensor and determines the proper air/fuel ratio for starting the engine. This ranges
from1.5 to 1 at -36 °C (-33 °F) coolant temperature to 14.7 to 1 at 94 °C (201 °F) coolant
temperature. The ECM controls the amountof fuel delivered in the starting mode by changing how long
the fuel injector is turned on and off. This is done by ''pulsing" the fuel injectors for very short times.
2) Run Mode
The run mode has two conditions called ''open loop" and ''closed loop".
3) Open Loop
When the engine is first started and it is above 690 rpm, the system goes into "open loop" operation. In
"open loop", the ECM ignores the signal from the HO2S and calculates the air/fuel ratio based on inputs
from the ECT sensor and the MAF sensor. The ECM stays in "open loop" until the following conditions
are met:
The O2 has a varying voltage output, showing that it is hot enough to operate properly.
The ECT sensor is above a specified temperature (22.5 °C).
A specific amount of time has elapsed after starting the engine. -
-
-
4) Closed Loop
The specific values for the above conditions vary with different engines and are stored in the
Electronically Erasable Programmable Read-Only Memory (EEPROM).
When these conditions are met, the system goes into "closed loop" operation. In "closed loop", the ECM
calculates the air/fuel ratio (fuel injector on- time) based on the signals from the O2 sensors. This allows
the air/fuel ratio to stay very close to 14.7 to 1.
5) Acceleration Mode
The ECM responds to rapid changes in throttle position and airflow and provides extra fuel.
6) Deceleration Mode
The ECM responds to changes in throttle position and airflow and reduces the amount of fuel. When
deceleration is very fast, the ECM can cut off fuel completely for short periods of time.

06-8
The cooling fans are mounted behind the radiator in the engine compartment. The electric cooling fans
increase the flow of air across the radiator fins and across the condenser on air conditioned (A/C)-
equipped vehicles.
This helps to speed cooling when the vehicle is at idle or moving at low speeds.
All models have two fans. The main fan is 320 mm (12. 6 inches) in diameter with seven blades to aid
the airflow through the radiator and the condenser. An electric motor attached to the radiator support
drives the fan.
The auxiliary fan is 320 mm (12.6 inches) in diameter.
A/C Off or Non-AC Model ▶
The cooling fans are actuated by the engine control module (ECM) using a low-speed cooling
fan relay, a high-speed cooling fan relay and a cooling fan motor relay.
The ECM will turn the cooling fans on at low speed when the coolant temperature reaches
95°C(203°F) and at high speed when the coolant temperature reaches 105°C(221°F).
The ECM will change the cooling fans from high peed to low speed at 100°C(212°F) and
will turn the cooling fans off at 90°C (194°F). -
-
-
A/C On ▶
The ECM will turn the cooling fans on at low speed when the A/C system is on. The ECM will
change to high speed when the high side A/C pressure reaches 1860 kPa (269.8 psi).
The cooling fans will return to low speed when the high side A/C pressure reaches 1378 kPa
(199.8 psi). -
-
7) Engine Coolant Temperature Sensor
The Engine Coolant Temperature (ECT) sensor uses a temperature to control the signal voltage to the
Engine Control Module (ECM).
8) Coolant Temperature Gauge
The coolant temperature gauge controls the instrument panel temperature indicator. The coolant
temperature gauge is located with ECT sensor.

01-38410-02
I/P - LH FUSE / RELAY BOX
- Power supply circuit for HFM sensor added (F30)
- Fuse for heated steering wheel added (F32)
1. MAJOR CHANGES
Driver’s interior fuse and relay box assembly changed ▶
F32
F30