1998 SSANGYONG MUSSO Workshop Repair Manual

M162 ENGINE CONTROLS 1F1-79
Accelerator Pedal Sensor Connector(Sensor Side)
Potentiometer 1.
Pin no. 3 :Red
Pin no. 1 :Yellow
Pin no. 5 :Brown
Potentiometer 2.
Pin no. 6 :Violet
Pin no. 4 :Green
Pin no. 2 :White
Accelerator Pedal Sensor Connector(Vehicle Side)
Potentiometer 1.
Pin no. 3 :Red-Black
Pin no. 1 :Blue-Green
Pin no. 5 :Yellow-Green
Potentiometer 2.
Pin no. 6 :Green
Pin no. 4 :Blue-Red
Pin no. 2 :LightGreen
Function
Potentiometer 1, Power Supply(+)
Potentiometer 1, Signal
Potentiometer 2, Ground
Potentiometer 2, Power Supply(+)
Pin no. 3
Pin no. 1
Pin no. 5
Pin no. 6
Pin no. 4
Pin no. 2Potentiometer 2, Signal
Potentiometer 2, Ground
Circuit Diagram
Potentiometer 1.
Potentiometer 2.

SECTION 1F2
M161 ENGINE CONTROLS
TABLE OF CONTENTS
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise
noted.
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1F2-2
Fastener Tightening Specifications . . . . . . . . 1F2-2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1F2-3
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1F2-3
Schematic and Routing Diagrams . . . . . . . 1F2-4
E23 ECU (MSE) . . . . . . . . . . . . . . . . . . . . . . 1F2-4
E23 ECU (HFM) . . . . . . . . . . . . . . . . . . . . . . 1F2-5
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 1F2-6
Self Diagnosis Socket Pin Numbers and
Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 1F2-6
Self Diagnosis Failure Code (for E23 ENG) . 1F2-7
Test Box Connection . . . . . . . . . . . . . . . . . . 1F2-10
Fuel Injection System Test . . . . . . . . . . . . . 1F2-11
Ignition System Test . . . . . . . . . . . . . . . . . . 1F2-20
Idling Control and Electronic Pedal
System Test . . . . . . . . . . . . . . . . . . . . . . . 1F2-25
Air Conditioner Control System Test . . . . . . 1F2-27
Fuel Pressure and Internal Leakage Test . . 1F2-28
Fuel Pump Test . . . . . . . . . . . . . . . . . . . . . . 1F2-30Injector Test . . . . . . . . . . . . . . . . . . . . . . . . 1F2-32
Maintenance and Repair . . . . . . . . . . . . . 1F2-34
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . 1F2-34
ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1F2-34
Fuel Pressure Regulator . . . . . . . . . . . . . . 1F2-45
Fuel Distributor . . . . . . . . . . . . . . . . . . . . . . 1F2-49
Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1F2-54
Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 1F2-57
Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . 1F2-58
Purge Switchover Valve . . . . . . . . . . . . . . . 1F2-62
Vacuum System . . . . . . . . . . . . . . . . . . . . . 1F2-64
Crankshaft Position Sensor . . . . . . . . . . . . 1F2-66
Camshaft Position Sensor . . . . . . . . . . . . . 1F2-68
Hot Film Air Mass (HFM) Sensor . . . . . . . . . 1F2-70
Oxygen Sensor . . . . . . . . . . . . . . . . . . . . . . 1F2-73
Knock Sensor . . . . . . . . . . . . . . . . . . . . . . . 1F2-75
Coolant Temperature Sensor . . . . . . . . . . . 1F2-76
Accelerator Pedal Module . . . . . . . . . . . . . . 1F2-79

1F2-2 M161 ENGINE CONTROLS
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Application
Fuel Return and Supply Line
Fuel Distributor Assembly Bolt
Pressure Test Connector
Fuel Inlet and Outlet Line
Fuel Filter Mounting Bracket Bolt
Crankshaft Position Sensor Bolt
Camkshaft Position Sensor Bolt
Knock Sensor Mounting Bolt
Coolant Temperature BoltN·m
25 - 30
22.5 - 27.5
21.6 - 26.4
25 - 30
4 - 8
9 - 11
9 - 11
22.5 - 27.5
18 - 22

M161 ENGINE CONTROLS 1F2-3
SPECIAL TOOLS
SPECIAL TOOLS TABLE
129 589 00 21 00
Test Box
119 589 04 63 00
Pressure Hose
106 589 00 21 00
Pressure Tester
210 589 08 63 00
ECU Test Cable210201
Adaptor Line

1F2-4 M161 ENGINE CONTROLS
SCHEMATIC AND ROUTING DIAGRAMS
E23 ECU (MSE)

M161 ENGINE CONTROLS 1F2-5
E23 ECU (HFM)

1F2-6 M161 ENGINE CONTROLS
DIAGNOSIS
SELF DIAGNOSIS SOCKET PIN NUMBERS AND DESCRIPTIONS
1 Ground
2 Ignition 1
3 Battery Power Supply (Fuse NO.17)
4 REKES :PIN 6
5 Engine Speed Signal :MSE PIN 60
6 TCCU(Part-time)
7 STICS(PIN 26)
8-
9-
10 Air Bag(PIN 20)
11 Remote Engine Start Unit(PIN 10)12 -
13 Brake System
(ABS 5.3:PIN 11, ABS/ABD 5.3:PIN 46)
14 MSE 3.62S/3.53S(ECU Data Output:PIN 58)
15 TOD(PIN 20)
1 6 Immobilizer
17 -
1 8 TCU(PIN 23)
19 -
2 0 K-LINE(ECS:PIN 23)

M161 ENGINE CONTROLS 1F2-7
No ignition voltage output(NO.1 ignition coil;
1, 4cylinder)
No ignition voltage output(NO.2 ignition coil;
2, 3cylinder)
Cranshaft position sensor adaption failure
Start signal recognition failure
No.1 injector short(PWR)
No.1 injector open/short(GND)
No.2 injector short(PWR)
No.2 injector open/short(GND)
No.3 injector short(PWR)
No.3 injector open/short(GND)
No.4 injector short(PWR)
No.4 injector open/short(GND)
High oxygen sensor voltage
Low oxygen sensor amplifying voltage
Oxygen sensor operating failure
Not excessive lean indication in oxygen
sensor(during coasting)
Oxygen sensor heater short(power)
Oxygen sensor heater open/short(GND)
Low oxygen sensor voltage
Short learning control failure
Lambda control failure (rich stop)
Lambda control failure (lean stop)
Lambda idle adaptation failure(above rich
threshold)
Lambda idle adaptation failure(below lean
threshold)
learning control failure(rich, low load) Coolant temperature sensor open
Coolant temperature sensor short
Coolant temperature sensor signal failure
Intake temperature sensor open
Intake temperature sensor short
Intake temperature sensor signal failure
Low battery voltage
HFM sensor signal failure
HFM sensor signal failure (Low)
HFM sensor signal failure (High)
Crankshaft position sensor signal failure
(no engine revolution signal)
Crankshaft position sensor signal failure
(rpm > max. value)
No.1 cylinder recognition failure
Crankshaft position sensor signal failure
(gab recognition failure)
Transmission coding failure
Transponder signal communication failure
CAN communication failure : TCU(A/T only)
CAN communication failure :
communication initialization failure
Fuel pump relay short(PWR)
Fuel pump relay open/short(GND)
Purge valve short
Purge valve open/short
Condenser fan(HI) relay short(PWR)
Condenser fan(HI) relay short(GND)
No.1 knock sensor signal failure
No.1 cylinder synchronization failure 00
01
02
03
04
05
08
09
10
11
17
18
19
20
21
25
26
31
34
35
40
41
44
45
56
58
Failure
codeDescriptionFailure
codeDescription
64
65
67
71
72
73
74
75
76
77
78
79
80
81
82
83
86
87
89
93
96
97
98
99
100
SELF DIAGNOSIS FAILURE CODE (FOR E23 ENG)