2003 SSANGYONG MUSSO coolant temperature

M162 ENGINE CONTROLS 1F1-71
If the measured value is not within the specified value, the possible cause may be in cable or HFM sensor in itself.Perform the 5V power supply inspection procedures.
HFM Sensor 5V Power Supply Inspection 1. Measure the voltage between the HFM sensor No.108 (+) and
No.105(-) after removing the HFM sensor connector.
HFM Sensor Input Voltage Inspection
1. Measure the HFM sensor signal voltage between the ECU
terminal No.103 and No.104.
Specified Value (coolant temperature is over 70 °C)
If the measured value is not within the specified value, the possible cause may be in cable or ECU coupling.
Iginition"ON ” 0.9 - 1.1 V
Engine at Idle 1.3 - 1.7 V
Specified Value 4.7 - 5.2 V
2. Measure the voltage between the HFM sensor wining connector terminal No.3 pin(-) and No.4 after removing the
HFM sensor connector.
Specified Value If the measured value is not within the specified value, the possible cause may be in cable or over voltage protection
relay. Perfrom the 12V power supple inspection procedures.
Specified Value 4.7 - 5.2 V
HFM Sensor 12V Power Supply Inspection
1. Measure the voltage between the HFM sensor wiring connector 1G No.2 pin(+) and No.104 after removing the
HFM sensor connector. If the measured value is not within the specified value, the possible cause may be in cable or over voltage protection
relay.
Specified Value 11 - 14 V

M162 ENGINE CONTROLS 1F1-73
Oxygen Sensor Signal Voltage Inspection
1. Measure the oxygen sensor signal voltage between the ECUterminal No.11 and No.9. Maintain the engine speed ia at idle while the coolant temperature is over 80 °C.
If the measured value is not within the specified value, thepossible cause may be in cable, oxygen sensor or ECU.
Oxygen Sensor Heating Voltage Inspection
1. Measure the oxygen sensor heating voltage between the ECU terminal No.11 and No.9. Maintain the engine speed ia at idle while the coolant temperature is over 80 °C.
If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or ECU.
Oxygen Sensor Heating Current Consumption
Inspection
1. Measure the oxygen sensor heating current consumption between the ECU terminal No.9 and No.5 while the ignition switch is in "ON" position. If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or ECU.
Specified Value 0.2 - 2.0 A
Specified Value -0.2 - 1.0 V
Specified Value 11 - 14

M162 ENGINE CONTROLS 1F1-75
COOLANT TEMPERATURE SENSOR
1 Artificial Resin Housing
2 Metal Housing
3 NTC (negative temperature coefficient) Resistor
Removal & Installation Procedure
1. Remove the pressure by opening the pressure cap in the coolant subtank.
2. Disconnect the connector and remove the coolant temperature sensor. Installation Notice Replace the seals with new one.
3. Installation should follow the removal procedure in the reverse order.
4. Check for leaks at each connections after starting the engine. 4 Connector
5 Coolant Temperature Sensor
Tightening Torque 18 - 22 Nm

1F1-76 M162 ENGINE CONTROLS 2. Measure the resistance between the coolant temperaturesensor terminal No.1 and No.4 with the coolant temperature sensor disconnected.
Inspection 1. Measure the coolant sensor input voltage between the ECU
terminal No.79 and No.78 while the ignition switch in "ON" position. Notice Replace wiring and coolant temperature sensor if out of specified value. allowable error :
±5%
allowable error : ±5%
Voltage (V)
3.57 1.220.78
Temperature (
°C)
203040
Resistance (W) 2,500322 185
Temperature (
°C)
203040

M162 ENGINE CONTROLS 1F1-77
Service Data Resistance characteristic curve according to the coolant temperatureTemperature(
°C) Resistance(W) Voltage(V) Temperature( °C) Resistance(W) Voltage(V)
-40 48,550 4.8991 60 594 1.8632
-30 27,000 4.8214 70 434 1.5132
-20 15,670 4.7001 80 322 1.2179
-10 9,450 4.5215 90 243 0.9775 0 5,890 4.4273 100 185 0.7806
10 3,790 3.9562 110 143 0.6255
20 2,500 3.5714 120 111.6 0.5020
30 1,692 3.1426 130 88.0 0.4044
40 1,170 2.6959 140 71.2 0.3323 50 826 2.2618 - - -

OM600 ENGINE CONTROLS 1F3-7
Vacuum 500 mbar
Lines and connections leaking. Faulty PLA vacuum unit.
Test step 1
Connect vacuum pump (14) with Y adapter to PLA vacuum unit (5). Run engine at idle speed.YES NO
(Remove the connection hose from vacuum pump)
Connect vacuum pump (14) direct to PLA vacuum unit(5) and pressurize with vacuum.
Vacuum is built up and idle speed increases approx. 150-200 rpm
YES NO
Faulty PLA vacuum unit
(Coolant Temperature 30 °C)
Stop the engine Seal the air admission line with plug. Connect the vacuum pump to line to thermovalve andpressurize the line with vacuum.
Vacuum is built up.
YES NO
Lines and connectors leaking. Faulty thermovalve.
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SECTION 7D
FULL AUTOMATIC TEMPERATURECONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 7D-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 7D-1
Service Specifications . . . . . . . . . . . . . . . . . . . 7D-3
Schematic and Routing Diagrams . . . . . . . . 7D-4
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . 7D-4
FATC Block Diagram . . . . . . . . . . . . . . . . . . . . 7D-5
Component Locator . . . . . . . . . . . . . . . . . . . 7D-6 TABLE OF CONTENTS
Ventilation System . . . . . . . . . . . . . . . . . . . . . . 7D-6
Function Description . . . . . . . . . . . . . . . . . . . . 7D-7
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 7D-8
Diagnosis Test . . . . . . . . . . . . . . . . . . . . . . . . 7D-8
Maintenance and Repair . . . . . . . . . . . . . . 7D-11 FATC Control Panel . . . . . . . . . . . . . . . . . . . 7D-11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 7D-15
FATC (Full Automatic Temperature Control) is full automatic heater and airconditioning system that detects incar temperature, ambient temperature, sun load and coolant temperature and controls airconditioner system
blowing capacity, outlet temperature and intaking/outlet mode to maintain interior comfort.
SPECIFICATIONSSPECIFICATIONS
Application
Core Size (LxWxT)
Core Type
Expansion Valve Type Thermostat
Resister TypeCooling Capacity Description
237.0x232.0x92.0 Aluminum plate
Angle
ON:4.5±0.6 °C, OFF:1.5±0.6 °C
Aluminum plate
4,500 Kcal/h(AT 420 CMH)
Evaporator Unit
Application
Capacity
Type Description
650-750 g R134a
Refrigerant

FATC-HAVC 7D-3
SERVICE SPECIFICATIONSResistance (25 °C)
Voltage Rating Current RatingResistance (25 °C)
Voltage Rating Current Rating Resistance (25 °C)
Voltage RatingCurrent Rating
Application
Incar Sensor Ambient Sensor
Coolant Temperature Sensor
Description
Input Section
2.186k
±0.07k
5V
3mA
1.0k ±0.03k
5V
3mA
0.55k ±0.02k
5V
3mA
Current Rating (at 12V) LOCK CurrentCurrent Rating (at 12V)LOCK CurrentCurrent Rating (at 12V) LOCK Current IcPc
Application
Intake Actuator Mode Actuator Mix Actuator Power TRBlower Motor Power Consumption
Description
Output Section
70±30mA
Less than 500mA 100±40mA
Less than 500mA 100±40mA
Less than 500mA 30A
200W 220W