1998 SSANGYONG MUSSO Workshop Repair Manual

1F2-32 M161 ENGINE CONTROLS
INJECTOR TEST
1 ECU
2 Test Coupling(No.1-60)
3 Test Coupling(No.61-120)
4 Measuring Beaker
5 Shop Made Cable
Preparation
0 3 Test Box
04 ECU Test Cable
Connection of the Equipment
1. Connect the test box to the ECU as shown in the figure.
2. Remove the 2-pin coupling from injector.
3. Remove the fuel distributor and injector with a unit. At this
time, do not remove the supply and return line.
4. Connect the shop made cable to the injector with a firing
order.
5. Collect the fuel from injector.
Tools Required
129 589 00 21 00 Test Box
210 589 08 63 00 ECU Test Cable

M161 ENGINE CONTROLS 1F2-33
Figure 8. Shop Made Cable Figure 9. Fuel Injector Normal Spary Pattern
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
There should
be no leaks
and later
drops from
the injector· ·· ·
· Injector:
- Leakage
test· Ignition:ON
- Remove the fuel
distributor and fuel
injector with a unit. Þ 1.0· Þ 2.0
· Injector
The spray
pattern of the
injector most
show in the
figure 10
· Ignition:ON
- Connect the shop
made cable to the
injector.
- Collect the
spraying fuel with a
beaker
- Connect the shop
made cable to
No.11(+) and No.5
(-) terminal in test
box. Þ 2.0· Injector
533
· ·· ·
· Injector:
- Function
test and
spray
pattern
check
533

1F2-34 M161 ENGINE CONTROLS
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
ECU
Appearance
1 Cover
2 Plate
3 Connector
4 Flat pin
Vehicle side : number 1 - 12
Engine side : number 61 - 725 Pin
Vehicle side : number 13 - 60
Engine side : number 73 - 120
A Vehicle Connector : Black
B Engine Connector : Gray

M161 ENGINE CONTROLS 1F2-35
Location
Engine ECU is located at the inside of cowl side trim in right
bottom of instrument panel of passenger side.
Removal & Installation Procedure
1. Turn the ignition switch to "OFF" position.
2. Disconnect the battery negative cable
3. Remove the cowl side trim form passenger side.
4. Unscrew four securing nuts for ECU from mounting bracket.
Installation Notice
5. Pulling out the ECU from bracket.
6. Disconnect the vehicle side coupling(B).
7. Installation should follow the removal procedure in the
reverse order.
Tightening Torque 9 - 11 Nm

1F2-36 M161 ENGINE CONTROLS
Pin No.Abbreviation Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20-
TM.50
-
-
GND
-
LSH2
-
LSH1
TM.31
TM.87
TM.30
WFS I/O
WFS O
-
GND
LS1
-
GND
LS2 -
Starter motor TM.50
-
-
Electronic ground
-
Lambda probe 2 heating
-
Lambda probe 1 heating
Power ground TM.31
V-BATTERY TM.87
V-BATTERY TM.30
Immobilizer crypto read
Immobilizer crypto write
-
Lambda probe 1 ground
Lambda probe 1 signal
-
Lambda probe 2 ground
Lambda probe 2 signal
ECU Pin Numbers and Descriptions
Vehecle Connector

M161 ENGINE CONTROLS 1F2-37
Pin No.Abbreviation Description
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60BRS
-
-
-
-
-
KLIKU
-
-
-
GND
SP1+5V
KP
TEV
ML
-
CAN L
CAN H
-
-
-
-
KPI
KLIMA
ETS
-
SP1S
SP2S
BLS
GND
SP2+2.5V
S+B
WA
S-B
KSK
-
AUS
DIAG
V-SIG
TN-SIG Brake switch
-
-
-
-
-
Air conditioning clutch relay
-
-
-
Pedal potentiometer 1 ground
Pedal potentiometer 1 supply
Fuel pump relay
Tank purge valve
Engine fan(High)
-
CAN-Low
CAN-High
-
-
-
-
-
Air conditioning
Electronic traction signal
-
Pedal potentiometer 1 signal
Pedal potentiometer 2 signal
Brake light switch
Pedal potentiometer 2 ground
Pedal potentiometer 2 supply
Cruise accelerate/Set
Cruise resume
Cruise decelerate/Set
Cruise safety contact switch
-
Cruise off switch
Diagnostics(K-Line)
Vehicle speed signal
Engine speed signal

1F2-38 M161 ENGINE CONTROLS
Engine Connector
Pin No.Abbreviation
Description
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80-
-
EV1
EV4
EV2
EV3
M+
M-
TM.31
-
ZSB23
ZSA14
NWS
EGR
-
SLP
-
MT
GND
LT -
-
Injector-cylinder 1
Injector-cylinder 2
Injector-cylinder 3
Injector-cylinder 4
E-GAS motor plus
E-GAS motor minus
Power ground TM.31
-
Ignition coil cylinder 2+3
Ignition coil cylinder 1+4
Camshaft control
EGR (Exhaust Gas Recirculation)
-
Second air pump relay
-
Engine coolant temperature
Intake air temperature ground
Intake air temperature

M161 ENGINE CONTROLS 1F2-39
Pin No.Abbreviation Description
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
11 0
111
11 2
11 3
11 4
11 5
11 6
11 7
11 8
11 9
120HFM
-
V-REF.PS
-
IP2S
-
IP1S
-
-
-
-
-
-
-
-
-
-
-
KW-
KW+
-
PSAUG
GND
NOWE-
GND
NOWE+
-
V-REF.HFM
-
-
-
V-REF.DK
-
-
-
-
GND
KS1
-
- Hot film air mass signal
-
Pressure sensor supply
E-GAS potentiometer ground
E-GAS potentiometer 2 signal
-
E-GAS potentiometer 1 signal
-
-
-
-
-
-
-
-
-
-
-
Crankshaft sensor ground
Crankshaft sensor signal
-
Intake manifold pressure signal
Intake manifold pressure ground
Camshaft sensor ground
Hot film air mass ground
Camshaft sensor signal
-
Hot film air mass supply
-
-
-
E-GAS potentiometer supply
-
-
-
-
Knock sensor 1 ground
Knock sensor 1 signal
-
-