engine coolant SSANGYONG KORANDO 1997 Service Repair Manual

SECTION 7A
HEATING AND VENTILATION SYSTEM
CAUTION: The cooling system is pressurized when hot. Injury can result from removing the coolant reservoir
cap before the engine is sufficiently cool.
TABLE OF CONTENTS
Description and Operation ................................7A-2
Heating and Ventilation System .........................7A-2
Components Locator ..........................................7A-3
Heater System ...................................................7A-3
Diagnostic Information and Procedures ..........7A-4
Heater System ...................................................7A-4
Blower Electrical ................................................7A-8
Mode Controls Do Not Work .............................7A-10
Air Source Selection Not Controlled ..................7A-12
Temperature Controls Do Not Work ..................7A-13
Too Much Heat .................................................7A-14
Blower Noise ....................................................7A-16
Repair Instructions ............................................7A-18
On-Vehicle Service..............................................7A-18
Temperature Control Cable Adjustment ............7A-18
Controller Assembly and Temperature
Control Cable .................................................7A-18
Control Assembly Knob Lighting ......................7A-19Air Intake Door Actuator ...................................7A-19
Mode Control Door Actuator .............................7A-20
Heater/Air Distributor Case Assembly ..............7A-20
Blower Motor ....................................................7A-21
Blower Resistor ................................................7A-22
Blower Unit .......................................................7A-22
Heater Inlet Hose ..............................................7A-23
Heater Outlet Hose ...........................................7A-23
Heater Core......................................................7A-24
Rear Heater Duct ..............................................7A-24
Air Filter ............................................................7A-24
Specifications .................................................... 7A-25
Heater Temperature Specification .....................7A-25
Heater Unit .......................................................7A-25
Fastener Tightening Specification .....................7A-25
Schematic and Routing Diagrams ................... 7A-26
Non - A/C Wiring Diagram ................................7A-26
Airflow Through Vents .......................................7A-28

SSANGYONG MY2002
7A-2 HEATING AND VENTILATION SYSTEM
DESCRIPTION AND OPERATION
HEATING AND VENTILATION
SYSTEM
The base heater system is designed to provide heating,
ventilation, windshield defrosting, side wind defogging
and rear seat area.
The heater and fan assembly blower regulates the air-
flow from the air inlet for further processing and distribu-
tion.
The heater core transfers the heater from the engine
coolant to the inlet air.
The temperature door regulates the amount of the air
that passes through the heater core. The temperature
door also controls the temperature of the air by control-
ling mix of heated air with the ambient air.
The mode door regulates the flow and distribution of
the processed air to the heater ducts and to the defroster
ducts.
The console mounted heating and ventilation control
panel contains one rotary control knob, one sliding con-
trol lever and six push control knobs, which operate as
follows:
Sliding Temperature Control Lever
•Actuates by cable.
Raise the temperature of the air entering the vehicle
by sliding to the right, or the red portion of the knob.
Five Mode Control Knob
Actuates by electricity.
Regulates the air distribution between the
windshield, the instrument panel, and the floor
vents.
Rotary Blower Control Knob
Turns on to operate the blower motor at four speeds.
Turns OFF to stop the blower.
Operates completely independently from both the
mode control knob and temperature control knob.
Changes the fan speed in any mode and at any
speed.
Intake Air Control Knob
Operates by electricity.
Switches between recirculating the passenger
compartment air and bringing outside air into the
passenger compartment.
Is normally in fresh air mode.
Illuminates the indicator lamp when in the recalculat
ing mode.
Heater Core
The heater core heats the air before enters the vehicle.
Engine coolant is circulated through the core to heat
the outside air passing over the fins of the core. The
core is functional at all times and may be used to
temper conditioned air in the A/C mode as well as in
the heat or the vent mode.

SSANGYONG MY2002
7A-4 HEATING AND VENTILATION SYSTEM
DIAGNOSTIC INFORMATION AND PROCEDURES
HEATER SYSTEM
Insufficient Heating or Defrosting
CAUTION: The cooling system is pressurized when hot. Injury can result from removing the coolant reservoir
cap before the engine is sufficiently cool.
Step
1
2
3
4
5
6
7
8
9
10
11
12
Action
Verify the customer’s complaint.
Are the customer’s concerns verified?
Check the coolant level.
Is the coolant level correct?
Add coolant as needed
Is the repair complete?
Check the serpentine accessory drive belt for tension
or damage.
Is the ’serpentine accessory drive belt OK?
Correct any problem with serpentine accessory drive
belt.
Is the repair complete?
Check the coolant hoses for leaks or kinks.
Are the coolant hoses OK?
Repair any problem with the coolant hoses.
Is the repair complete?
Check the coolant reservoir cap. Refer to Section 1D,
Engine Cooling.
Is the coolant reservoir cap OK?
Repair or replace the coolant reservoir cap as needed.
Is the repair complete?
1. Set the A/C switch OFF on the vehicles equipped
with air conditioning.
2. Set the temperature control lever to full hot.
3. Set the blower motor switch on 4.
4. Turn the ignition ON.
5. Check for the airflow from the vent outlet.
Is there a heavy airflow from the vent outlet?
Check for change in the airflow at various blower
speeds.
Does the blower speed increase as the switch is turned
from 1 to 4?
1. With the engine sufficiently cool, remove the
coolant reservoir cap.
2. Set the blower motor switch on 4.
3. Set the temperature control lever to full hot.
4. Start the engine and idle the engine.
5. Watch for the flow of the coolant.
Is the coolant flow visible?Yes
Go to Step 2
Go to Step 4
System OK
Go to Step 5
System OK
Go to Step 8
System OK
Go to Step 10
System OK
Go to Step 11
Go to Step 12
Go to Step 16No
System OK
Go to Step 3
Go to Step 4
Go to Step 6
Go to Step 6
Go to Step 7
Go to Step 8
Go to Step 9
Go to Step 10
Go to Step 25
Go to “Blower
Electrical”
Go to Step 13 Value(s)
-

HEATING AND VENTILATION SYSTEM 7A-5
SSANGYONG MY2002
Insufficient Heating or Defrosting (Cont’d)
Step
13
14
15
16
17
18
19
20Action
Check the thermostat. Refer to Section 1D, Engine
Cooling.
Is the thermostat installed and seated properly?
Replace the thermostat. Refer to Section 1D, Engine
Cooling.
Is the repair complete?
Reinstall the thermostat.
Is the repair complete?
1. Install the coolant reservoir cap.
2. With the ignition ON, allow the engine to warm up
for about 20 minutes. Drive the vehicle at 48 km/h
(30 mph).
3. Use a thermometer to measure the ambient air
temperature and the discharge air temperature at
the heater outlet.
Does the heater output meet the minimum value
given?
1. Check the vehicle for cold air leaks at the following
locations:
Dash.
Heater case.
Vents.
2. Check under the seat for obstructions.
3. Repair any leaks or obstructions.
Are the repairs complete?
1. Turn the ignition OFF.
2. Turn the temperature control lever to full cold, then
rapidly to full hot.
3. Listen for a second of the end of travel range of the
control lever
Does the door slam?
1. Check the following aspects of the temperature
door:
Travel
Heater case
Vents
2. Verify the accuracy of the temperature controls at
full hot.
3. Verify the accuracy of the temperature controls at
full cold.
Is the repair complete?
1. Set the temperature door to full hot.
2. Start the vehicle
3. Check the temperature of the heater inlet hose and
the heater outlet hose by feel. The air temperature
around the hoses should be at least 29 °C (84 °F)
Is the heater inlet hose hot and heater outlet hose
warm?Yes
Go to Step 14
System OK
System OK
Go to Step 17
System OK
Go to Step 20
System OK
Go to Step 26No
Go to Step 15
-
-
Go to Step 18
-
Go to Step 19
-
Go to Step 21 Value(s)

SSANGYONG MY2002
7A-6 HEATING AND VENTILATION SYSTEM
Insufficient Heating or Defrosting (Cont’d)
Step
21
22
23
24
25
26
27
28
29
30
31
32Action
Inspect heater hoses for proper installation.
Are heater hoses reversed?
Reinstall the heater hoses properly.
Is the repair complete?
1. Back flushes the heater core.
2. Drain the cooling system.
3. Replace the coolant.
4. Warm the engine to an average operating tem-
perature.
5. Feel the heater inlet hose and outlet hose.
Are the heater inlet hose hot and the heater outlet
hose warm?
Replace heater core.
Is the repair complete?
Recheck the system using the “Control setting/
Correct Results” tests. Refer to “Improper Air Delivery
or No Mode Shift” in this section.
Is the repair complete?
Check for airflow from the defroster or the vent
outlets.
Is there high airflow form the defroster or vent outlets?
Check the heater door at the floor and the vent door
to get proper airflow, verify proper operation, and
repair as required.
Is the repair complete?
Push the defroster knob
Is the defroster airflow OK?
1. Remove the heater outlet and check for obstruc-
tions.
2. Remove any obstructions in the heater outlet.
Is the repair complete?
Check for obstructions in the system at blower inlet
and the air filter, if the vehicle equipped with one.
Are there any obstructions?
Remove the obstructions in the system at the blower
inlet or replace a clogged filter.
Are the repairs complete?
1. Set the blower on 4.
2. Slide the temperature control lever from full hot to
full cold.
3. Listen for an airflow change.
Does the airflow change?Yes
Go to Step 22
System OK
System OK
System OK
System OK
Go to Step 27
System OK
Go to Step 29
System OK
Go to Step 31
System OK
Go to Step 33No
Go to Step 23
-
Go to Step 24
-
Go to Step 26
Go to Step 28
-
Go to Step 30
-
Go to Step 32
-
Go to Step 34 Value(s)

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.

SSANGYONG MY2002
9A-20 BODY WIRING SYSTEM
W/H ENGINE CONTROL (GASOLINE)
6 Crankshaft position sensor
7 Oil pressure switch
8 Knock sensor 2
9 Air flow sensor
10 Ignition coil 3
11 Ignition coil 2
12 Ignition coil 1
13 Injector 6
14 Injector 5
15 Injector 416 Injector 3
17 Injector 2
18 Injector 1
19 Camshaft actuator
20 Camshaft position sensor
21 Engine coolant temperature sensor (Gauge)
22 Engine temperature sensor
23 Throttle motor & sensor
24 Knock sensor 1
25 Intake manifold resonance flap
KAA9A150

BODY WIRING SYSTEM 9A-21
SSANGYONG MY2002
W/H PRE - HEATING (DIESEL)
1 Preheating time control relay
3 Glow plug 1
4 Glow plug 2
5 Glow plug 36 Glow plug 4
7 Glow plug 5 (662 LA only)
8 Engine coolant temperature sensor (Gauge)
KAA9A160

SSANGYONG MY2002
9E-2 INSTRUMENTATION, DRIVER INFORMATION
DESCRIPTION AND OPERATION
CIGAR LIGHTER
The cigar lighter is located in the front portion of the
floor console. To use the lighter, push it in completely.
When the lighter is hot, it will release itsef from contact
with the heating element. The lighter and the heating
element can be damaged if the lighter does not fully
release itsef from the heating element.
ASHTRAY
The ashtray is located in the console. To access the
ashtray, pullit out of the ashtray housing. The ashtray
lamp will go on when the parking lamps or headlamps
are turned on.
INSTRUMENT PANEL VENTS
The center and the side vents in the instrument panel
can be adjusted up and down and from side to side.
The side vents can also be aimed toward the side
windows to defog them.
GLOVE BOX
The glove box can be opened by pulling upon the latch
handle.
DIGITAL CLOCK
The digital clock is located in the instrument cluster.
INSTRUMENT CLUSTER
The instrument cluster is located above the steering
column and in the instrument cluster trim panel. The
instrument cluster contains the instruments that
provide the driver with vehicle performance information.
The instrument cluster contains a speedometer, a
tachometer, an odometer, a trip odometer, a
temperature gauge, a fuel gauge, and several indicator
lamps. For replacement of the indicator lamp bulbs
contained in the instrument cluster, refer to “Instrument
Cluster Indicator Lamps Specifications” in the section.
SPEEDOMETER AND
TACHOMETER
The speedometer measures the speed of the vehicle
in km/h (with mph) or mph (with km/h). It consists of
an instrument cluster gauge connected to the vehicle
speed sensor on the transaxle output shaft. The
tachometer measures the engine’s speed in terms of
thousands of revolutions per minute. It consists of an
instrument cluster gauge connected to a sending unit
in the engine con-trol module. Do not operate the
engine in the red zone. Engine damage may occur.
TRIP ODOMETER
The trip odometer measures the distance the vehicle
has traveled since it was last reset. It consists of an
instrument cluster gauge connected to the sending unit
on the tasnsaxle output shaft. The trip oddometer can
be record the distance traveled from any starting point.
FUEL GAUGE
The fuel gauge consists of an instrument cluster gauge
connected to a sending unit in the fuel tank. The fuel
gauge indicates the quantity of fuel in the tank only
when the ignition is turned to ON or ACC. When the
ignition is turned to LOCK or START, the pointer may
come to rest at any position.
TEMPERATURE GAUGE
The temperature gauge consists of an instrument
cluster gauge connected to a temperature sensor that
is in con-tact with the circulating engine coolant. The
temperature gauge indicates the temperature of the
coolant. Prolonged driving or idling in very hot weather
may cause the pointer to move beyond the center of
the gauge. The engine is overheating if the pointer
moves into the red zone at the upper limit of the gauge.
INSTRUMENT CLUSTER
INDICATOR LAMPS
The instrument cluster contains indicator lamps that
indicatethe functioning of certain systems or the
existenceof potential problems with the operation of
the vehicle. The indicator lamps are replaceable. For
replacement of the indicator lamps contained in the
instrument cluster, refer to “instrument cluster indicator
lamps specifications” in this section.
CHIME MODULE
The chime module will sound to bring attention to one
or more of the following conditions:
The lights are on and the ignition not in ACC, ON,
or START.
The ignition key is in the ignition switch when the
driver’s side door is open.
The seat belt is unbuckled when the ignition is in
ACC, ON, or START.
Voltage is supplied at all times through the fuse block
to power the chime module.

SSANGYONG MY2002
9E-8 INSTRUMENTATION, DRIVER INFORMATION
TEMPERATURE GAUGE
Temperature Gauge Inoperative, Other Gauges OK
Step
1
2
3
4
5
6
7
8
9Action
Allow the engine to cool to room temperature.
With the ignition ON, does the temperature gauge
always read at the high end of the scale?
Disconnect the coolant temperature sensor electrical
connector.
Does the termperature gauge indicator drop to the
low end of the scale?
Replace the coolant temperature sensor.
Is the repair complete?
Check for a short to ground between the coolant
temperature sensor and the temperature gauge.
Is there a short to ground?
Repair the short to ground.
Is the repair complete?
Replace the temperature gauge.
Is the repair complete?
1. Disconnect the coolant temperature sensor.
2. Turn the ignition ON.
3. Check the voltage at the coolant temperature
sensor connector.
Does the the voltage equal the value specified?
Check for an open circuit between the coolant tem-
perature sensor and the temperature gauge.
Is the repair complete?
Repair the open circuit between the coolant tempera-
ture sensor and the temperature gauge.
Is the repair complete?Yes
Go to Step 7
Go to Step 3
System OK
Go to Step 5
System OK
System OK
Go to Step 10
Go to Step 8
System OKNo
Go to Step 2
Go to Step 4
-
Go to Step 6
-
-
Go to Step 8
Go to Step 6
- Value(s)
-
-
-
-
-
-
11 - 14 v
-
-
Fuel Gauge Inoperative (Cont’d)
Step
1
2
3Action
Check continuity between the fuel tank sending unit
connector C303 terminal 3, and groun.
Does the multimeter indicate the specified value?
Repair the open circuit or poor ground connection.
Is the repair complete?
1. With the fuel tank sending unit electrical connector
C303 disconnected, attach a jumper between
ground and C303 terminal 1.
2. Turn the ignition ON.
Does the fuel gauge move to full?Yes
Go to Step 11
System OK
Go to Step 3No
Go to Step 10
-
Go to Step 6 Value(s)
0 Ω
-
-