SSANGYONG MUSSO 1998 Workshop Repair Manual

1F2-12 M161 ENGINE CONTROLS
Failure
codeItem
09,
10,
11,
Checking method Te s t
stepRequirementSpecified
valuePossible cause
Þ 4.0· ·· ·
· HFM sensor
signal
105 81· Ignition:ON0.9 - 1.1V· Þ 4.1 - 4.3
· Cable
· External air inflow
· HFM sensor
· Engine:in Idle
(Coolant temperature
: > 70°C )1.3 - 1.7V
Þ 4.1
105 4
· Ignition:ON
· HFM sensor
connector removed4.7 - 5.2V
· Cable
· ECU coupling
· ·· ·
· HFM sensor:
- 5V power
supplyHFM
sensor
Þ 4.2
3 108· Ignition:ON
· HFM sensor
connector removed4.7 - 5.2V
· Þ 4.3
· Cable
· ·· ·
· HFM sensor:
- 5V power
supplyHFM
sensor
Þ 4.3
104 2· Ignition:ON
· HFM sensor
connector removed11 - 14V
· Cable
· OVPR
· ·· ·
· HFM sensor:
- 12V power
supplyHFM
sensor
03,
04,
05,Þ 5.0· ·· ·
· Intake air
temperature
sensor:
- Voltage105 80· Ignition:ON· Þ 5.1
· ECU
Þ 5.1· Ignition:OFF
· No.2 ECU coupling
removed 105 80
· Cable
· HFM sensor
· ·· ·
· Intake air
temperature
sensor:
- Resistance
: voltage value
is increased
when engine
rpm is
increased
± 5%
°C
10
20
30
40
50
60
± 5%W
3600
2420
1662
1166
853
600 °C
10
20
30
40
50
60V
3.1
2.65
2.18
1.76
1.4
1.1

M161 ENGINE CONTROLS 1F2-13
Failure
codeItemChecking method Te s t
stepRequirement
Specified
valuePossible cause
Þ 6.1· Ignition:ON0.1 - 0.3A· Cable
· Fuel pump relay
· ECU
· ·· ·
· Fuel pump
relay:
- Current
consumption
00,
01,
02,
06,Þ 7.0· ·· ·
· Coolant
temperature
sensor:
- Voltage79 78· Ignition:ON°CV
20 3.57
80 1.22
100 0.78· Þ 7.1
· ECU
± 5% Þ 6.0
· Ignition:ON
(Fuel pump relay will
operate for 1 - 2
seconds when the
ignition switch is
turned to "ON" after
stopping the
engine)
· Engine:cranking 33 11
· Cable
· Fuel pump relay
· ECU
· ·· ·
· Fuel pump
relay:
- Operation34,
35,11 - 14V
(approx.1-
2sec.)
11 - 14V
(Cranking or
driving)
533
Þ 7.1· Ignition:OFF
(Remove the No.2
coupling from ECU) 79 78· Þ 7.2
· cable
· ·· ·
· Coolant
temperature
sensor:
- Resistance
& cable°CW
20 2500
80 322
100 185
± 5%
Þ 7.2· ·· ·
· Coolant
temperature
sensor:
- ResistanceCoolant temperature
sensor:
14
· Remove the
connector from
coolant temperature
sensor and measure
the resistance
between No.1 and
No.2 pin with
multimeter.· Þ refer to
specified
resistance
value of 7.1.· Coolant
temperature
sensor

1F2-14 M161 ENGINE CONTROLS
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
Þ 9.0· Keep the engine run
above 2 minutes in
over 80°C of coolant
temperature6.0 - 7.0 V· ECU
· Cable
· Oxygen sensor
· ·· ·
· Oxygen
sensor:
- Signal80,
81,
82,
83,
89,560
Þ 8.0· Engine:in cranking
or idle
560· Cable
· ECU
· ·· ·
· ECU:
- RPM signal
output32,
33,refer to figure
2
Þ 10.0· Keep the engine run
above 2 minutes in
over 80°C of coolant
temperature.· ·· ·
· Oxygen
sensor:
- Heating
function
operated
Þ 11.0· ·· ·
· No.1
cylinder
injector:
- Operating &
injection
time· When the coolant
temperature is
approx. 20°C:
- Engine:in cranking8.0 ms· Cable
· ECU
· No.1 Injector
· Coolant
temperature sensor
· Oxygen sensor
· Intake air
temperature sensor
- Voltage· Engine:in cranking
or idle
(above 5V in idling)
16 17
59
911
· Ignition:ON11 - 14 V
· ECU
· Cable
· Oxygen sensor
- Current
consumption0.2 - 2.0 A
72,
73,
63 11
· When the coolant
temperature is
approx. 80°C:
- Engine:at idling
speed
- Engine:at sharp
acceleration(full
throttle)
(refer to figure 3
and 4)approx.
2.7 - 5.0ms
approx.14ms There will be a
voltage
fluctuation in
the range of
- 0.2 -1.0V.
85,
86,
87,

M161 ENGINE CONTROLS 1F2-15
Failure
codeItem
Checking method Test
stepRequirementSpecified
valuePossible cause
·Ignition:OFF (injector
temperature is 20°C)14 - 17 W - Internal
resistance
(No.1
injector)63 11
Þ 12.0· ·· ·
· No.2
cylinder
injector:
- Operating &
injection
time· When the coolant
temperature is
approx. 20°C:
- Engine:in cranking
8.0 ms· Cable
· ECU
· No.2 Injector
· Coolant
temperature
sensor
· Oxygen sensor
· Intake air
temperature
sensor 74,
75,
64 11
· When the coolant
temperature is
approx. 80°C:
- Engine:at idling
speed
- Engine:at sharp
acceleration (full
throttle)
(refer to figure 3 and
4)approx.
2.7 - 5.0ms
approx.14ms
·Ignition:OFF (injector
temperature is 20°C)14 - 17 W - Internal
resistance
(No.2
injector)64 11
Þ 13.0· ·· ·
· No.3
cylinder
injector:
- Operating &
injection
time· When the coolant
temperature is
approx. 20°C:
- Engine:in cranking
8.0 ms· Cable
· ECU
· No.3 Injector
· Coolant
temperature sensor
· Oxygen sensor
· Intake air
temperature sensor 76,
77,
65 11
· When the coolant
temperature is
approx. 80°C:
- Engine:at idling
speed
- Engine:at sharp
acceleration(full
throttle)
(refer to figure 3
and 4)approx.
2.7 - 5.0ms
approx.14ms

1F2-16 M161 ENGINE CONTROLS
Failure
codeItem
Checking method Test
stepRequirement
Specified
valuePossible cause
·Ignition:OFF (injector
temperature is 20°C)14 - 17 W - Internal
resistance
(No.3
injector)65 11
Þ 14.0· ·· ·
· No.4 cylinder
injector:
- Operating &
injection time· When the coolant
temperature is
approx.20°C:
- Engine:in cranking8.0 ms· Cable
· ECU
· No.4 Injector
· Coolant
temperature sensor
· Oxygen sensor
· Intake air
temperature sensor 78,
79,
66 11
· When the coolant
temperature is
approx.80°C:
- Engine:at idling
speed
- Engine:at sharp
acceleration(full
throttle)
(refer to figure 3
and 4)approx.
2.7 - 5.0ms
approx.14ms
·Ignition:OFF
(injector temperature
is 20°C)14 - 17 W - Internal
resistance
(No.4
injector)66 11
226,
227,Þ 15.0· ·· ·
· Camshaft
actuator:
Current
consumption
12
Camshaft actuator1 - 1.5 A· ECU
· Þ 15.1
· Þ 16.0 ·
Engine : using a test
cable(102 589 63 00)
in idling, measure the
current consumption
with below condition
- Coolant temperature
: above 70°C
- Engine rpm :
increase up to 2000
rpm

M161 ENGINE CONTROLS 1F2-17
Failure
codeItem
Þ 15.1
Checking method Test
stepRequirement
Specified
valuePossible cause
73 28 - 12 W
· ·· ·
· Camshaft
actuator:
Solenoid
resistance
(E23 only)
Þ 18.0· ·· ·
· Purge
control
valve:
- Vacuum
control· Engine:in idling/
normal operating
temperature· Power supply cable
· OVPR
· Cable
· Camshaft actuatorDiagnosis
socket
Þ 16.0
73 69Engine is
unstable or
stopped.· ·· ·
· Camshaft
actuator:
Mechanical
actuation
(E23 only)· Mechanical failure
of camshaft
actuator
Þ 17.0
· Engine:in idling
34 11The purge
control valve
should be
operated after
approx.
1minute.
(refer to figure
5)· ·· ·
· Purge
control
valve:
- Operating
226,
227,
· ECU
· Cable
· Purge control valve
· Ignition:ON0.2 - 0.4 A - Current
consumption
10 34
Creating above
50mbar of
vacuum after
approx.
1 minute
Þ 19.0
· Ignition:OFF
38 37· Data bus
· Þ 19.1
· Þ 19.2 55 - 65 W
· ·· ·
· CAN data
bus
· Ignition:OFF
· Engine:in idling
40,
41,
54,
40,
41,
54,Connect the vacuum
gauge between the
control valve and
canister
22,23,
24,26,
27,29,
30,31,
59,60,

1F2-18 M161 ENGINE CONTROLS
Failure
codeItem
Þ 19.1
Checking method Test
stepRequirementSpecified
valuePossible cause
38 37115 - 125 W
· ·· ·
· CAN module
resistance in
ABS, ABD,
ASR control
unit· Cable
· ABS, ABD, ASR
control unit
· Ignition:OFF
- disconnect the
coupling"No.1"
from ECU
Þ 19.2
38 37115 - 125 W
· ·· ·
· CAN module
resistance in
ECU control
unit· ECU· Ignition:OFF
- disconnect the
coupling"No.1"
from ECU
Þ 20.0
55811 - 14 V· ·· ·
· Diagnosis
cable
operating· ECU
· Cable
· Ignition:ON

M161 ENGINE CONTROLS 1F2-19
Reference Figures
Figure1. RPM Sgnal OutputFigure 2. Injection Valve Wave(at idle speed)
Figure 3. Injection Valve Wave(at sharp
acceleration)Figure 4. Purge Control Valve Operationg Wave

1F2-20 M161 ENGINE CONTROLS
Failure
codeItem
Þ 1.0
Checking method
· Ignition:ON
Test
stepRequirementSpecified
valuePossible cause
10 1211 - 14V
· ·· ·
· ECU:power
supply
- terminal 30
(TM.30)
Þ 2.2· ·· ·
· Power
supply:
- terminal 87
(TM.87)· Ignition:ON· Power supply cable
· OVPR
IGNITION SYSTEM TEST
08,· Þ 1.1
· Þ 1.2
Þ 1.1
· Ignition:ON
10 211 - 14V· ·· ·
· Ground
cable:
- Battery
ground· Ground cable
· Ground condition
(figure 1)Diagnosis
socket
69 2
Diagnosis
socket
Þ 1.2· Ignition:ON
11211 - 14V· ·· ·
· Power
supply:
- terminal 30
(TM.30)· Power supply cable
Diagnosis
socket
Þ 2.0· Ignition:ON
51111 -14V· ·· ·
· ECU:power
supply
- terminal 87
(TM.87)08,· Þ 2.1
· Þ 2.2
Þ 2.1
· Ignition:ON 11 - 14V· ·· ·
· Ground
cable
- Electronic
ground· Ground cable
52
Diagnosis
socket
111
Diagnosis
socket
· Ignition:OFF
11 - 14V
< 1V
Þ 3.0· Ignition:ON
69 7211 - 14 V· ·· ·
· Ignition
coil(T1/1)
- No.1,4
Cylinder64,· Cable
· Ignition coil(T1/1)
· Fuse No.17
· Engine:in cranking > 10 V

M161 ENGINE CONTROLS 1F2-21
Failure
codeItem
Checking method Test
stepRequirement
Specified
valuePossible cause
Þ 5.1· ·· ·
· Crankshaft
position
sensor:
- Resistance· Ignition:OFF
- Disconnect the
coupling “No.2”
from ECU (engine
side coupling).· Cable
· Crankshaft position
sensor Þ 5.0
· Engine:in cranking
99 100Measure the
signal (refer to
figure 6)· ·· ·
· Crankshaft
position
sensor:
- Signal17,
18,
20,
67,· Increament failure
in driven plate
· Þ 5.1
> 5 V - 99 100
99 100
1050 - 1400W
Þ 6.0
· Engine:in cranking
104 106· Þ 6.1
· Cable
· Camshaft position
sensor Measure the
signal(refer to
figure 8)
· ·· ·
· Camshaft
position
sensor:
(E23 only)
- Signal
Þ 4.0· Ignition:ON
69 7111 -14 V· ·· ·
· Ignition
coil(T1/2)
- No.2,3
Cylinder65,· Cable
· Ignition coil(T1/2)
· Fuse No.17
· Engine:in cranking > 10 V
· Engine:idling
- Voltage
(alternating)
· Engine:in cranking
· Engine:idling> 2.5 V -
19,
58,
106 11The value will
be changed in
1.2 - 1.7 V. - Voltage
(alternating)
· Engine:in cranking
Þ 6.1
· Ignition:ON
- Remove the
connector from the
camshaft position
sensor 1311 -14 V· ·· ·
· Camshaft
position
sensor
(E23 only)
- Power supply· Cable
· OVPR
Camshaft position
sensor