PREVOST X3-45 Multiplex User Manual

SECTION 06: ELECTRICAL
PA1562
1
CONTENTS
1. GENERAL DESCRIPTION....................................................................................................................4
1.1 WIRING DIAGRAMS............................................................................................................................4
1.1.1 Using Wiring Diagrams............................................................................................................4
1.1.2 Testing Circuits........................................................................................................................5
1.2 WIRE SIZES AND COLORS..................................................................................................................5
1.3 SPARE WIRES...................................................................................................................................5
1.4 CLEANING CONNECTORS...................................................................................................................6
1.5 CIRCUIT BREAKERS...........................................................................................................................6
1.6 MULTIPLEX FUSES ............................................................................................................................7
1.7 RELAYS............................................................................................................................................7
1.8 PRECAUTIONS...................................................................................................................................7
2. X3 COACHES ELECTRICAL COMPARTMENTS................................................................................9
2.1 MAINTENANCE ..................................................................................................................................9
2.2 REAR ELECTRICAL COMPARTMENT ....................................................................................................9
2.3 FRONT ELECTRICAL AND SERVICE COMPARTMENT ...........................................................................10
2.4 ENGINE REAR START PANEL .............................................................................................................11
2.5 CONDENSER COMPARTMENT ............................................................................................................12
2.5.1 Battery equalizer ...................................................................................................................12
2.6 ENTRANCE DOOR & WIPER CONTROL PANEL......................................................................................12
3. BATTERIES.........................................................................................................................................12
3.1 BATTERY DISCHARGE PROTECTION .................................................................................................14
3.2 MAIN BATTERY RELAYS...................................................................................................................14
3.3 BATTERY REMOVAL AND INSTALLATION ............................................................................................14
3.4 BATTERY RATING............................................................................................................................15
3.5 BATTERY TESTING ..........................................................................................................................15
3.5.1 Visual Inspection ...................................................................................................................16
3.5.2 Removing Surface Charge....................................................................................................16
3.5.3 Load Test...............................................................................................................................16
3.5.4 Testing Battery Cables..........................................................................................................17
3.6 BATTERY CHARGING .......................................................................................................................17
3.6.1 Battery Charging Guide.........................................................................................................19
3.6.2 Emergency Jump Starting With Auxiliary (Booster) Battery. ................................................19
3.7 CLEANING AND INSPECTION .............................................................................................................20
3.8 COMMON CAUSES OF BATTERY FAILURE..........................................................................................20
3.9 TROUBLESHOOTING ........................................................................................................................21
3.10 "BAT" BATTERY VOLTAGE INCORRECT TELLTALE LIGHT ....................................................................21
3.10.1 "Bat" Telltale Light Definitions ...............................................................................................21
4. TROUBLESHOOTING AND TESTING THE MULTIPLEX VEHICLES..............................................21
4.1 ELECTRICAL SYSTEM DIAGNOSTIC ...................................................................................................21
4.2 PROBING VOLTAGE ON THE MULTIPLEX CIRCUITS............................................................................22
4.3 CAN NETWORK ...............................................................................................................................22
4.3.1 Can Connection On The Telltale Panel And The Hvac Control Unit ....................................22
4.3.2 Spare Can .............................................................................................................................23
4.4 TEST MODE FOR SWITCHES AND SENSORS .....................................................................................23
4.4.1 Information Available And Impact On The Functions In Switch/Sensor Test Mode .............23
4.5 TEST MODE FOR ELECTRIC MOTORS ...............................................................................................24
4.5.1 Test Sequence ......................................................................................................................24
4.6 CAN NETWORK LAYOUT AND TROUBLESHOOTING.............................................................................25
4.7 TROUBLESHOOTING ........................................................................................................................26
4.8 ESSENTIAL FUNCTIONS TO OPERATE THE VEHICLE ..........................................................................31

PREVOST X3-45 Multiplex Specifications

General

Length	45 ft
Width	102 in
Engine	Volvo D13
Horsepower	500 hp
GVWR	54, 000 lbs
Height	146 in
Sleeping Capacity	Varies based on floor plan
Water Capacity	Varies based on floor plan