PREVOST X3-45 2016 - Page 97

SECTION 06: ELECTRICAL
PA1593
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
1.5.1 X3-45 Coaches ........................................................................................................................... 6
1.6 MULTIPLEX
FUSES ....................................................................................................................... 6
1.7 RELAYS .......................................................................................................................................... 7
1.8 PRECAUTIONS .............................................................................................................................. 7
2. X3 SERIES COACH .............................................................................................................................. 9
2.1 MAINTENANCE.............................................................................................................................. 9
2.2 REAR
ELECTRICAL PANEL, JUNCTION PANEL, BATTERY COMPARTMENT & EQUALIZER . 9
2.3 REAR ELECTRICAL PANEL ........................................................................................................ 10
2.4 REAR JUNCTION PANEL ............................................................................................................ 10
2.5 BATTERY COMPARTMENT ........................................................................................................ 10
2.6 FRONT ELECTRICAL AND SERVICE COMPARTMENT ............................................................ 10
2.7 A/C JUNCTION BOX .................................................................................................................... 10
2.8 ENGINE REAR START PANEL .................................................................................................... 11
2.9 ENTRANCE DOOR & WIPER CONTROL PANEL ....................................................................... 11
3. BATTERIES ......................................................................................................................................... 11
3.1 BATTERY
DISCHARGE PROTECTION ...................................................................................... 12
3.2 MAIN BATTERY RELAYS ............................................................................................................ 12
3.3 BATTERY REMOVAL AND INSTALLATION ................................................................................ 12
3.4 BATTERY RATING ....................................................................................................................... 13
3.5 BATTERY MAINTENANCE .......................................................................................................... 14
3.5.1 Visual Inspection ....................................................................................................................... 14
3.5.2 Removing Surface Charge ........................................................................................................ 14
3.5.3 Testing Battery Cables .............................................................................................................. 14
3.6 BATTERY
CHARGING ................................................................................................................. 15
3.6.1 Emergency Jump Starting With Auxiliary (Booster) Battery. .................................................... 15
3.7 COMMON
CAUSES OF BATTERY FAILURE .............................................................................. 16
3.8 TROUBLESHOOTING ................................................................................................................. 17
3.9 “BATTERY
VOLTAGE WARNING” PICTOGRAM ........................................................................ 17
3.9.1 Voltmeter Gauge Definitions ..................................................................................................... 17
4. TROUBLESHOOTING AND TESTING THE MULTIPLEX VEHICLES .............................................. 17
4.1 ELECTRICAL
SYSTEM DIAGNOSTIC ........................................................................................ 17
4.2 PROBING VOLTAGE ON THE MULTIPLEX CIRCUITS .............................................................. 18
4.3 CAN
NETWORK ........................................................................................................................... 18
4.3.1 Spare CAN ................................................................................................................................ 18
4.4 MULTIPLEX
INPUT TEST MODE ................................................................................................ 18
4.4.1 Test Sequence .......................................................................................................................... 20
4.5 FORCED
ACTIVATION OF THE RADIATOR FAN CLUTCH ....................................................... 20
4.6 CAN
NETWORK LAYOUT AND TROUBLESHOOTING .............................................................. 21
4.7 TROUBLESHOOTING ................................................................................................................. 21
4.8 MULTIPLEX
ERROR MESSAGES TROUBLESHOOTING LIST ................................................. 26
4.9 MULTIPLEX
MODULE “NO RESPONSE” TROUBLESHOOTING LIST ...................................... 26
4.10 ESSENTIAL FUNCTIONS TO OPERATE THE VEHICLE ............................................................ 26