coolant temperature SSANGYONG MUSSO 1998 Workshop Owner's Guide

M162 ENGINE CONTROLS 1F1-27
Failure
codeItem
Checking method Test
stepRequirementSpecified
valuePossible cause
Þ 3.1· Ignition:ON
84 1124.75 - 5.25 V· ·· ·
· Throttle
valve
actuator:
- Power
supply(5V)· Cable
· ECU
Þ 4.0
· Ignition:ON
68 670.8 - 2.3 V
The value will
be changed in
1.0 - 2.5V.· ·· ·
· Throttle
valve
actuator:
- Signal
Throttle valve
actuator
motor voltage
supply104,
105,
108,
109,
116,
119,
185,· ECU
· Cable
· E-GAS actuator
· Engine:in idling
- Coolant
temperature:
>70 °C 84 85
4.0 - 4.6 V Throttle valve
potentiometer 2
0.3 - 0.9 V
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with
kick down
Throttle valve
potentiometer
1+2
· Ignition:OFF
< 10 W
Throttle valve
actuator
motor
resistance68 67

1F1-28 M162 ENGINE CONTROLS
AIR CONDITIONER CONTROL SYSTEM TEST
Þ 2.0· Engine:In idling
· Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch : ON
Coolant temperature:
above 105 °C 10 35
11 - 14 V
11 - 14 V
< 1 V
· ·· ·
· Condenser
fan(HI)
control:· Condenser fan
relay
· Fan motor
· ECU
Failure
codeItem
Þ 1.0
Checking method
· Engine:In idling
· Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch : ON
Te s t
stepRequirement
Specified
valuePossible cause
10 44
< 1 V
· ·· ·
· Air
conditioner
signal:
- Input signal
(input signal
from thermo
amplifier)44,
45,
11 - 14 V· Þ 5.1
· Cable
· Thermo amp
· Auto amp
· Dual pressure
switch
· Air conditioner
control panel
Þ 1.1
· Engine:In idling
· Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch:ON 10 27
< 1 V
· ·· ·
· Air
conditioner
compressor:
- Output
signal
11 - 14 V
· Thermo amp
· Auto amp
· Dual pressure
switch
· Air conditioner
control panel
· ECU

M162 ENGINE CONTROLS 1F1-39
Engine Connector
Pin No.Abbreciation
Decription
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80EV5
EV6
EV1
EV4
EV2
EV3
M+
M-
TM.31
ZSC16
ZSA25
ZSB34
NWS
-
-
-
-
MT
GND
LT Injector-cylinder 2
Injector-cylinder 4
Injector-cylinder 1
Injector-cylinder 6
Injector-cylinder 5
Injector-cylinder 3
E-GAS motor plus
E-GAS motor minus
Power ground TM.31
Ignition coil cylinder 1+6
Ignition coil cylinder 2+5
Ignition coil cylinder 3+4
Camshaft control
-
-
-
-
Engine coolant temperature
Temperature ground
Intake air temperature

M162 ENGINE CONTROLS 1F1-43
Pin No.
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
Description
Injector-cylinder 2
Injector-cylinder 4
Injector-cylinder 1
Injector-cylinder 6
Injector-cylinder 5
Injector-cylinder 3
E-GAS motor plus
E-GAS motor minus
Power ground TM.31
Ignition coil cylinder 1+6
Ignition coil cylinder 2+5
Ignition coil cylinder 3+4
Camshaft control
-
-
-
-
Engine coolant temperature
Temperature ground
Intake air temperature
Hot film air mass signal
-
-
E-GAS potentiometer ground
E-GAS potentiometer 2 signal
-
E-GAS potentiometer 1 signal
-
-
-EV5
EV6
EV1
EV4
EV2
EV3
M+
M-
TM.31
ZSC16
ZSA25
ZSB34
NWS
-
-
-
-
MT
GND
LT
HFM
-
-
GND
IP2S
-
IP1S
-
-
-l
l
l
l
l
l
l
l
l
l
l
l
l
-
-
-
-
l
l
l
l
-
-
l
l
-
l
-
-
-
l
l
l
l
l
l
l
l
l
l
l
l
l
-
-
-
-
l
l
l
l
-
-
l
l
-
l
-
-
-
Remarks
AbbreviationE32 ENG,
5speed M/T E32 ENG,
4speed A/T
(BTRA)

1F1-62 M162 ENGINE CONTROLS
PURGE SWITCHOVER VALVE
1 Purge Switchover Valve
2 Line to Engine
3 Line to Canister
4 Canister
Functions
The fuel vaporization control system is installed to inhibit the
fuel vaporized gas from discharging into the atmosphere. The
fuel vaporized gas that is accumulated in the canister abstracts
through the purge switchover valve purification during the
engine combustion (except the decreasing mode) and coolant
temperature of over 80°C. For this reason, the ECU transacts
the engine speed, air inflow quantity, coolant temperature, and
intake temperature.
The purge switchover valve is activated by the ECU frequency
according with the engine rotating speed to adjust the
purification rate. The purification rate is determined by the
continuous valve opening interval.
The purge switchover valve is activated by the ECU for the
following conditions :
lCoolant temperature of over 80°C
lEngine speed of over 1000rpm
l2 Minutes after starting
lWhen the fuel cut-off mode is not activated

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 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 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 temperature
sensor 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
1.22
0.78
Temperature (°C)
20
30
40
Resistance (W)
2,500
322
185
Temperature (°C)
20
30
40

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 - - -