Page 616 of 1574
OM600 ENGINE CONTROLS 1F3-5
VACUUM CONTROL SYSTEM TEST
2 Engine Cut-Off Valve (Ignition Key Switch)
3 Auto-locking Hub Solenoid Valve
4 Engine Stop Valve Unit
5 PLA Vacuum Unit (Idle Speed Adjustment)
6 Engine
7 Vacuum Pump830
° Thermovalve
9 Fuel Injection Pump
10 Filter with Restriction
11 Check V alve
12 Modulating Pressure Line (Automatic T/M)
Test Data
Idle Speed Increase Permissible Pressure Drop of System At least 100 rpm at approx. 500mbr
400 - 500mbar approx. 1 min.
Page 684 of 1574

SECTION 1G3
OM600 ENGINE INTAKE & EXHAUST
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1G3-1Fastener Tightening Specifications . . . . . . . . 1G3-1
Schematic and Routing Diagrams . . . . . . . 1G3-2 EGR Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 1G3-2
Maintenance and Repair . . . . . . . . . . . . . . 1G3-3
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . 1G3-3 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 otherwisenoted.
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Application
Air Cleaner Housing Cover Nut Intake Manifold Bolt (M8 x 20)Intake Manifold Bolt (M8)Exhaust Mainfold Stud BoltExhaust Pipe Nut (Engine) Exhaust Pipe Bolt
N
m
9 - 11
22.5 - 27.5 22.5 - 27.5 9.5 - 12.5 15 - 2828 - 47
Air Cleaner and Inlet Duct & Hose . . . . . . . . 1G3-3
Intake and Exhaust Manifold . . . . . . . . . . . . . 1G3-5
Turbocharger . . . . . . . . . . . . . . . . . . . . . . . 1G3-8
Charge Air System Diagram . . . . . . . . . . . . . 1G3-8
Intercooler . . . . . . . . . . . . . . . . . . . . . . . . . . 1G3-9
Turbocharger Assembly . . . . . . . . . . . . . . . 1G3-11
Page 703 of 1574

2A-6 SUSPENSION DIAGNOSIS DAMPING FORCE CONTROL LOGIC Control Logic that applies on damping force variable suspension is comprised of road sensing driving comfort control logic to increase driving comfort and vehicle speed sensing control logic, anti-roll control logic and anti-dive control
logic to secure control safety.
LogicSensor
Road Sensing Driving Comfort Control LogicSpeedVertical
Sensor (2.5g)Lateral
Sensor (1g)Axle
Acceleration
Sensor (10g) Brake
Anti-bounce Control Logic Anti-roll Control LogicAnti-dive Control Logic
Vehicle Speed Sensing Control Logic
NORMAL CONTROL Initial Stage When ignition switch is "ON", system initialization will be performed for approx. 3 seconds. During this time, warning lamp will stay ON and damping force will be switched to Hard status. After 3 seconds, warning lamp will turn off and normal control status will be restored. Normal Damping Force Control Establishment Damping force will have Soft Medium Hard status in AUTO mode and Medium Hard status in SPORT mode.
When double control items are satisfied at the same time it will be Hard Medium Soft in order.
Normal Damping Force Control Release Control mode release will be "Hard Medium Soft"or "Medium Soft". In case that returned from Hard status to
Medium status during control, it will be done after elapse of setting times. Returning from Medium status to Soft status
will be done immediately without delay.
Page 704 of 1574

SUSPENSION DIAGNOSIS 2A-7
SELF-DIAGNOSIS ECS-ECU indicates ECS circuit defectives to the driver by flickering ECS indicator lamp in the meter cluster 0.5 second of interval if there are defectives.
Code
Body verticalacceleration
sensor
Defects
When sensor outputvoltage is less than
0.5-4.5V, more than
4.5V.
Judging Conditions01
0.9 - 1.1sec.Set TimeSensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V
Release Conditions
0.9 - 1.1sec.
Set Time
Body lateral
acceleration sensor When sensor output
voltage is less than
0.55±0.15V, more than
4.45±0.1V.
02
0.9 - 1.1sec.Sensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V 0.9 - 1.1sec.
Stop anti-
bounce ride
control
Remedy
Stop anti-roll control
Axle vertical
acceleration
sensor (wheel G sensor) When sensor output
voltage is less than
0.5-4.5V, more than
4.5V.
03
0.9 - 1.1sec.Sensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V 0.9 - 1.1sec.
Stop ride
control
Front actuator Check step motor
power supply detecting
circuit for open and
short.
check for relative connectors.
04
0.4 - 0.6sec.IGN+ SW.
OFF
ON
Stop control
after returning to the previ-
ous mode
Rear actuator When defective detect- ing circuit has detected
defectives during
output OFF.
05
0.4 - 0.6sec.IGN+ SW.
OFF
ON
Stop control
after returning
to the previous
mode
ECU When ECU does not
work normally.
06
0.4 - 0.6sec.Reset
Stop control
1. Turn the ignition switch ON and if ECS system is normal, ECS indicator lamp will turn on for 3 seconds and then go off. However if defective, ECS indicator lamp will flicker in the interval of 0.5 second continuously.
2. Identify fault code with Scanner.
Page 708 of 1574
SUSPENSION DIAGNOSIS 2A-11
Connector Pin Number and Circuits
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
26
Ignition
Actuator R-MEDIUM Actuator R-SOFT
Actuator F-HEAD Select Switch
Speed Sensor
Wheel G Sensor
Wheel G Sensor Ground
-
Vertical G Sensor
Sensor +5V
Chassis Ground Indicator Lamp
NO. CircuitNO. Circuit
1 14
21 5
316
417
518
619
720
821
922
10 23
11 2 4
12 25
13 26 Chassis Ground
Actuator R-HEAD
Actuator F-MEDIUM
Actuator F-SOFT Brake Switch
-
Lateral G Sensor
Lateral G Sensor Ground
Vertical G Sensor Ground Diagnosis K Line
Diagnosis L Line - -
Page 709 of 1574
2A-12 SUSPENSION DIAGNOSISSELF DIAGNOSIS TEST
DIAGNOSIS TEST
Special Tool Requirements : Scanner
1. Position the ignition switch to 'OFF'.
2. Connect Scanner harness connector to the engine compartment diagnosis socket.
3. Turn the ignition switch to 'ON' position.
4. Select "Electronic control vehicle diagnosis" from function selection display and press "Enter".
5. Select "Musso ('98 model year)" from vehicle model selection display and press 'Enter'.
6. Select "Electronic suspension system (ECS)" from control system selection display and press 'Enter'.
7. Select "Self-diagnosis" from diagnosis item selection display.
Notice
Check sensor value output display, if necessary.
8. Determine the fault code and check defective component. NoticeRefer to self-diagnosis list.
Page 798 of 1574

SECTION 4A
HYDRAULIC BRAKES
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4A-1
General Specifications . . . . . . . . . . . . . . . . . . 4A-1
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Noise or Vehicle Vibration When Applied
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Pulls to One Side When Braking . . . . . . . . . . . 4A-2
Poor Braking . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2Increasing Pedal Stroke (Pedal Goes to
Floor) or Brake Dragging . . . . . . . . . . . . . . . 4A-3
Poor Braking of Parking Brake . . . . . . . . . . . . 4A-3 TABLE OF CONTENTS
Component Locator . . . . . . . . . . . . . . . . . . . 4A-4
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-4
ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-5
Non-ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . 4A-6
Maintenance and Repair . . . . . . . . . . . . . . . 4A-7
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 4A-7
Bleeding the Brakes . . . . . . . . . . . . . . . . . . . . 4A-7
Brake Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-9
LCRV (Load Conscious Reducing Valve) . . . 4A-12
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 thiscable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCKunless otherwise noted.
Type
Pedal Ratio
Pedal Stroke
Pedal Freeplay Type
Inner Diameter Type
Ratio
Type
I.D. of Caliper Cylinder
Thickness of Brake Pad Thickness of Disc Plate Type
I.D. of Caliper Cylinder
Thickness of Brake Pad Thickness of Disc Plate
Type
Operation
Specification PBR Brake
4.3 : 1
132 mm
23.81 mm
5.0 : 1
60.4 mm
40.5 mm
9.5 mm
Suspended
1 - 4 mm
Tandem Type with Lever Sensor
Vacuum Booster Type
Ventilated Disc 10 mm 24 mm
Rear Wheel Internal Expansion Type Mechanical
SAE J1703, DOT3
SPECIFICATIONS
GENERAL SPECIFICATIONS
Brake Pedal
Master Cylinder Brake Booster Front Brake
Rear Brake
Parking Brake Brake Fluid MANDO Brake
4.3 : 1
138 mm
25.4 mm
5.6 : 1
60 mm
Solid Disc
38.2 mm
10.0 mm 10.4 mm
Application
Page 830 of 1574

FrontRear
Front Rear
SECTION 4F
ANTILOCK BRAKE SYSTEM
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 thiscable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCKunless otherwise noted.
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application Model
ECUNumber of Pins
Operating TemperatureMotor Operating CurrentSolenoid Coil Resistance External Resistance Air Gap
Number of teeth Description
ABS 5.3 31
-40 ~ +120 °C
Below MAX 40A
1.28K - 1.92K
0.35 - 1.60 mm 0.15 - 1.20 mm 52 52 ABS/ABD 5.3
83
-40 ~ +85 °C
Below MAX 45A
8.04 - 9.04 except AV,
HSV 4.04 - 4.54
1.28K - 1.92K
0.35 - 1.60 mm 0.15 - 1.20 mm
52 52
Hydraulic System
Wheel Speed Sensor Impulse Ring
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4F-1
General Specifications . . . . . . . . . . . . . . . . . . 4F-1
Schematic and Routing Diagrams . . . . . . . . 4F-2 ABS 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-2
ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-3
ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-4
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-5
Component Locator . . . . . . . . . . . . . . . . . . . 4F-6 ABS, ABS/ABD . . . . . . . . . . . . . . . . . . . . . . . . 4F-6
ABD System Description . . . . . . . . . . . . . . . 4F-7 Self Diagnosis . . . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . 4F-11
Defect Codes . . . . . . . . . . . . . . . . . . . . . . . . 4F-13
Maintenance and Repair . . . . . . . . . . . . . . 4F-19
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . 4F-19
Wheel Speed Sensor . . . . . . . . . . . . . . . . . . 4F-19
Hydraulic Circuit . . . . . . . . . . . . . . . . . . . . 4F-21 ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-21
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . 4F-24