2003 SSANGYONG MUSSO electrical

SECTION 1E3
OM600 ENGINE ELECTRICAL
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1E3-1General Specifications . . . . . . . . . . . . . . . . . 1E3-1
Maintenance and Repair . . . . . . . . . . . . . . 1E3-2
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 1E3-2
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.
Application
Alternator Starter Glow Plug
Description 12V - 75A
12V - 2.2kW
11.5V
SPECIFICATIONS
GENERAL SPECIFICATIONS
Glow Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . 1E3-2
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . 1E3-6
Starter Motor . . . . . . . . . . . . . . . . . . . . . . . . . 1E3-8

1E3-2 OM600 ENGINE ELECTRICAL
Preheating System General information The preheating system consists of control, coolant temperature sensor and glow plugs.
Control relay - preheating time.
Coolant temperature sensor.
Glow plug.
GLOW PLUG
1 Wiring Harness
2 Nut .............................................................. 4 Nm 3 Wire Terminal
4 Glow Plug
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE

OM600 ENGINE ELECTRICAL 1E3-3
1. Preheating time - control relay.Control relay functions as followings :
Switching of preheating current.
Indication of preheating finish.
Control of preheating sequence.
Indication of fault.
2. Coolant temperature sensor. Coolant temperature sensor senses coolant ’s temperature
and signals it to the preheating relay continuously.
3. Glow plug The glow plug parts are housing with M12 ´ 1.25 thread
and heating pin in housing. It is connected in a parallel circuit
with the specified voltage of 11.5V. The heating element has a heating coil and a control coil and they are connected in series.
1. Control Coil 2. Heater Coil
4. Current and temperature of glow plug Current of glow plug While the preheating system operates, current of about
30A flows in each glow plug and temperature of heating coil rises very fast.
Due to the rise of temperature, the resistance of control
coil increases therefore the current is controlled to
about 8~15A and that protects the glow plug from over-
heating.
Temperature of glow plug The temperature of the glow plug reaches up to 900 °C
after about 9 seconds and up to 1,050 °C after 30
seconds.

1E3-4 OM600 ENGINE ELECTRICAL
Preheating System Operation
1. Preheating before start.Preheating time is different by coolant temperature and it is on until the glow indicator light goes off.
2. Preheating after start. Preheating continues for max. 60 seconds to rise in characteristic of warming-up on engine after starting too.
3. Monitoring on glow plug. Glow plugs are monitored by low current by the microprocessor in control relay respectively while running theengine. If glow indicator comes on after starting for about one minute,
it indicates on or several plugs are faulty.
Possible Cause
- One or several glow are faulty
Problem
Glow indicator does not come on in preheating time and comes on after starting the engine. Glow indicator does not come on while preheating and after starting engine. Glow indicator does not come on and engine
’s
starting is difficult or does not start at all. Glow indicator comes on after starting for about one minute.1 2 3 4 - Faulty glow indicator
- Faulty circuit of glow indicator
- Faulty control relay
- Circuits short in one or several glow plugs
- Faulty preheating circuits
- Faulty control relay
- One or several glow plugs are faulty

OM600 ENGINE ELECTRICAL 1E3-5
Removal & Installation Procedure
1. Disconnect the negative terminal of battery.
2. Remove the nut (2).
3. Remove the glow plug (4).
4. Install the glow plug (4).
5. Tighten the nut (2).
Tightening Torque 20 Nm
Tightening Torque 4 Nm

1E3-6 OM600 ENGINE ELECTRICAL
ALTERNATOR Preceding Work : Removal of poly V-belt
1 Cooling Fan
2 Bolt............................................................ 45Nm
3 Bolt ............................................................ 45Nm4 Alternator
5 Plug Connection

OM600 ENGINE ELECTRICAL 1E3-7
Removal & Installation Procedure
1. Disconnect the negative terminal of the battery.
2. Disconnect the plug connection (5).
3. OM 662 EngineAlign the groove of cooling fan with bolt (2) (arrow).
4. Remove the bolts (2, 3) and take out the alternator.
5. Installation should follow the removal procedure in the reverse order.
Tightening Torque 45 Nm

1E3-8 OM600 ENGINE ELECTRICAL
STARTER MOTOR
1 Starter Motor
2 Washer3 Nut .............................................................
15Nm
4 Bolt ............................................................ 48Nm
Removal & Installation Procedure
1. Disconnect the battery terminals.
2. Disconnect the starter motor cable harnesses.
3. Remove the bolts and then remove the starter motor.
4. Installation should follow the removal procedure in the
reverse order.