1997 SSANGYONG KORANDO engine control unit

SECTION 7C
MANUAL CONTROL / SEMIAUTO
TEMPERATURE CONTROL HEATING,
VENTILATION AND AIR CONDITIONING
SYSTEM
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when
a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this
cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK
unless other-wise noted.
TABLE OF CONTENTS
Specifications.......................................................7C-2
Refrigerant..........................................................7C-2
Evaporator Unit....................................................7C-2
Blower Unit..........................................................7C-2
Compressor.........................................................7C-2
Condenser...........................................................7C-2
Receiver Drier......................................................7C-2
Pressure Switch...................................................7C-3
Air Filter...............................................................7C-3
Heater Unit..........................................................7C-3
Fastener Tightening Specifications.......................7C-3
Diagnosis..............................................................7C-4
Defectives in Fan Motor Circuit.............................7C-5
Defectives in Compressor Circuit.........................7C-6
Diagnosis Using the Manifold Gauge...................7C-7Component Locator.............................................7C-9
Ventilation............................................................7C-9
Heater System ................................................... 7C-11
Air Conditioner System...................................... 7C-12
Diesel Engine .................................................... 7C-12
Gasoline Engine................................................ 7C-13
Maintenance and Repair................................... 7C-14
Refrigerant Charging .......................................... 7C-14
Compressor Oil Replacement............................ 7C-18
Repair Instructions.............................................. 7C-19
On-Vehicle Service............................................... 7C-19
Condener.......................................................... 7C-19
Receiver Drier.................................................... 7C-21
Air - Conditioner Compressor............................. 7C-23
Heater and Air Conditioner Control Box.............. 7C-24
Air Filter............................................................. 7C-25

MANUAL & SEMIAUTO-HVAC 7C-17
SSANGYONG MY2002


Operation Check
Notice: Operation Check is recommended before
removing the manifold gauge.
1. Install the manifold gauge set.
2. Run the engine at 2,000 rpm and set the blower
switch at ‘HI’ and A/C switch ‘ON’. Set the
temperature control lever at ‘COOL’.
3. Keep opening all of the window and door.
4. Place a dry bulb thermometer to the front duct.
5. Place a psychrometer close to the inlet of the
cooling unit.
6. Check the high pressure gauge reading within
14 - 16 kg/cm
2
If the reading indicates high excessively, spray
the water to the condenser.
If the reading indicates low excessively, cover the
condenser with the towel.
7. Check the temperature of air inlet within 25 - 35 °C.
8. Calculate the relative humidity from the
psychrometic graph comparing the wet/dry
temperature at the air inlet.
9. Measure the wet/dry temperature at the cold air
outlet and calculate the temperature difference of
the dry bulb between the inlet and the outlet.
10. Check the cross point of the relative humidity and
check the temperature difference between the
black line. If the cross point is located between
the black line, the cooling performance is normal.
4. The discharging pressure increases when the
charging valve charges excessively, so charge
the charging valve to the specified amount with
measuring the weight of the refrigerant before
closing the high pressure valve.
5. Charge the specified amount of the refrigerant and
then close the valve of the manifold gauge. Check
the system for any leak.
YAD7B240

SSANGYONG MY2002
7C-18 MANUAL & SEMIAUTO-HVAC
Total Oil Capacity 265 cc
COMPRESSOR OIL
REPLACEMENT
Before Oil Replacement
When any part is replaced or there are a lot of gas
leaks in the A/C system, you should add the specified
amount of the oil to keep the approval oil capacity
because the oil for lubricating the compressor
circulates through the A/C system during operating
the compressor.
Handling Oil
Be careful that moistures, dusts etc. must not flow
into the oil.
Do not mix with any other material.
If the oil leaves outside for long time, it’s possible
to mix it with the moistures and so keep the oil
sealed with a container.
Circulating Oil
For checking or adjusting the oil level, set the control
unit to full cold and max blower speed with keeping
the engine run at idle for 20 - 30 minutes in order to
circulate the oil through the compressor.

FATC-HAVC 7D-19
SSANGYONG MY2002
KAA7D230
KAA7D240
KAA7D250
KAA7D260
Water Sensor
Water sensor is a thermistor that detects engine coolant
temperature to operate the blower speed to LO when
water temperature is less than 50.
1. Check that there are water sensor fault code (15,16)
by using self-diagnosis function.
2. Disconnect water sensor 2-pin connector that
installed on the heater unit of inner instrument panel
and remove the water sensor.
3. Check that measured resistance value among
water sensor terminals is as shown in the right
side graph.
Notice: Measure resistance value by soaking the
sensor in the ice water and check changes in
resistance values after soaking it in the very hot
water.
4. If resistance value is out of specification, replace
the water sensor.
5. Install the sensor and turn the ignition switch to
ON position and check that voltage between No.
7a terminal of the water sensor and body (-) is 5V.
6. Check current between the No. 7a and 7b connector
terminals of the water sensor and the No. 3 and 5
connector terminals of the airconditioner control unit
and repair the wire if defective.

SECTION 9A
BODY WIRING SYSTEM
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless
otherwise noted.
TABLE OF CONTENTS
General Description.............................................9A-2
Wire Color Chart..................................................9A-2
Engine Room Fuse & Relay Box......................... 9A-3
Usage of Fuse in Engine Room Fuse Box.............9A-5
Passenger Room Fuse Box..................................9A-6
Usage of Fuse in Engine Room Fuse Box.............9A-7
Schematic and Routing Diagrams.......................9A-8
Engine Room Fuse & Relay Circuit.......................9A-8
Wiring Harness & Connector &
Ground Location................................................. 9A-11
W/H Engine Room.............................................9A-11W/H Main..........................................................9A-12
W/H Main (Floor)............................................... 9A-14
W/H Roof..........................................................9A-15
W/H Seat Heater................................................9A-16
W/H Door..........................................................9A-17
W/H Tail Gate....................................................9A-18
W/H Air-Conditioner...........................................9A-19
W/H Engine Control (Gasoline)...........................9A-20
W/H Pre-Heating (Diesel)...................................9A-21
W/H Transmission..............................................9A-22

BODY WIRING SYSTEM 9A-11
SSANGYONG MY2002
WIRING HARNESS & CONNECTOR & GROUND LOCATION
W/H ENGINE ROOM
KAA9A070
1 Starting motor
2 G102
3 Damper solenoid (FRT LH)
4 Compressor
5 Wheel speed sensor (FRT LH)
6 Starting motor “ST” terminal connector
7 Canister purge valve (Gasoline E/G)
8 Pre-heating time control unit (Diesel E/G)
9 C109 (Diesel E/G)
10 J102
11 J101
12 G101
13 Turn signal & position lamp (FRT LH)
14 Fog lamp (FRT LH)
15 Head lamp (FRT LH)
16 HLLD (FRT LH)
17 Hood switch
18 Thermo switch (Diesel E/G)
19 LH horn
20 Condenser fan motor-Non A/conditioner
21 Condenser fan motor (LH)22 Resistor
23 RH horn
24 Fog lamp (FRT RH)
25 Condenser fan motor (RH)
26 Head lamp (FRT RH)
27 HLLD (FRT RH)
28 Turn signal & position lamp (FRT RH)
29 G103
30 C110 (Diesel E/G)
31 Alternator B+ (Diesel E/G)
32 J104
33 J103
34 C110 (Gasoline E/G)
35 Alternator B+ (Gasoline E/G)
36 Damper Solenoid (FRT RH)
37 C111
38 Wheel speed sensor (FRT RH)
39 Dual pressure switch
40 Washer motor
41 ADD (FRT RH)
42 C112
43 C113

FRAME AND UNDERBODY 9N-9
SSANGYONG MY2002
GENERAL DESCRIPTION AND SYSTEM OPERATION
GENERAL BODY CONSTRUCTION
This vehicle is constructed with a unitized body which
in-corporates integral front and rear frame side rails.
The front suspension lower control arms are bolted to
and retained by supports, one each on the right and
left sides. The front suspension lower control arm
supports are attached to the underbody with three bolts
at two locations. The engine is bolted to the integral
front side rails. The suspension strut towers must be
dimensionally correct in relation to the remainder of
the underbody in order to maintain specified
suspension strut and caster/camber angles.
Since the individual underbody parts contribute directly
to the overall strength of the body, it is essential to
observe proper welding techniques during servicerepair operations. The underbody parts should be
properly sealed and rustproofed whenever body repair
operations destroy or damage the original sealing and
rustproofing. When rustproofing critical underbody
parts, use a good-quality type of air-dry primer, such
as a corrosion-resistant chromate or an equivalent
material. Combination-type primer/surfacers are not
recommended.
ENGINE UNDER COVERS
The engine under covers are molded pieces of plastic
that serve as shields for the underside of the engine.
The covers help protect the engine from small rocks,
gravel and other objects that would otherwise come
into contact with the engine during normal driving
conditions.

SSANGYONG MY2002
9T2-2 IMMOBILIZER SYSTEM
DESCRIPTION AND OPERATION
Immobilizer is a device disabling vehicle ignition unless
a speific key is used and designed to help prevent
vehicle theft.
Immobilizer is comprised of two devices, a key with
encoded transponder and engine control unit (ECU)
with the same encoding of the transponder. When a
key is inserted into the key hole to start vehicle and
turned to ‘ON’, the ECU reads and decodes the
transponder code and, if the same, starts the engine,
it is called immobilizer. It means immobilizer system
disables starting by stopping fuel supply if the code
in the transponder does not match the code stored in
ECU each other.
Notice:
If vehicle is equipped with immobilizer system and
the engine cranks normally but not start, check
immobilizer system first rather than ignition and
other electrical systems because it can be
disabled fuel supply of injectors by ECU due to
defective immobilizer system.
Programming of the immobilizer system will be
performed by authorized personnel only. If
following defective codes for immobilizer system
appear during diagnosis of vehicle with SCANNER,
ask immobilizer programming to authorized
personnel and actual programming should be
performed by authorized per-sonnel only.
Display of defectives relevant to immobilizer
system : SCANNER
1. No communication with transponder
2. No immobilizer programming
The transponder in the key can be damaged by
shocks of dropping or hitting other objectives, so
handle it with care.
Each supplied key has programming of code on
its own. Accordingly if ECU needs to be replaced,
replace the transponder in the key.
The vehicle equipped with immobilizer system will
never be started with remote ignition device, so
do not attempt to install it.
The immobilizer system will never be removed from
the vehicle. So never attempt to remove it to install
a remote ignition device or others.
If engine does not start during service, use every
key to start the engine and then check immobilizer
sys-tem finally.
Cases that requires immobilizer
programming
1. Replacement ECU
In this case, replace the every transponder of the
key at once.
2. Replacement of the transponder
3. Additional key for lost 1 or 2 keys
1) Clear all codes for current keys from the ECU
2) When using current key : clear code of the trans-
ponder and re-program it
3) Additional (purchased) key : perform programming
4. When lost all keys
1) Clear all memorized key codes from the ECU
2) Replace the key and key set
3) Immobilizer programming