Section 06: ELECTRICAL
PA1564
21
4. Dirt and electrolyte on top of the batteries
causing a constant drain.
5. Hardened battery plates, due to battery
being in a low state of charge over a long
period of time.
6. Shorted cells, loss of active material from
plates.
7. Driving conditions or requirements under
which the vehicle is driven for short periods
of time.
8. A constant drain caused by a shorted circuit
such as an exposed wire or water infiltration
in junction boxes causing ground fault.
9. Extended operation of preheating system
with engine not running.
10. Failing to close disconnect switches during
the night.
3.9 TROUBLESHOOTING
If a battery is known to be good and then has not
performed satisfactorily in service for no
apparent reason, the following factors may
reveal the cause of trouble:
1. Vehicle accessories and disconnect switches
inadvertently left on overnight.
2. Defects in the charging system, such as high
wiring resistance, faulty alternator, regulator
or battery equalizer.
3. A vehicle electrical load exceeding the
alternator (or battery equalizer) capacity, with
the addition of electrical devices, such as CB
radio equipment, a cellular phone or
additional lighting systems.
4. Defects in the electrical system, such as
shorted or pinched wires.
5. Extended driving at a slow speed while using
many accessories.
6. Loose or poor battery cable-to-post
connections, previous improper charging of a
run-down battery, or loose hold-down clamp
bolts.
7. High-resistance connections or defects in the
cranking system.
3.10 "BAT" BATTERY VOLTAGE INCORRECT
TELLTALE LIGHT
If the
“
BAT
"
(battery voltage incorrect) telltale
light is illuminated, check the 24-volt voltmeter to
determine if the battery voltage is too high or too
low.
NOTE
According to the battery charging condition, it
is normal that "BAT" telltale light illuminates
upon starting the engine and stays illuminated
for a few seconds. This is caused by the
normal voltage drop of the battery during
starting.
3.10.1 "Bat" Telltale Light Definitions
Voltmeter drops below 24.4 volts dc
o
Check alternator output.
o
Check voltage regulator.
o
Check battery connections.
o
Check battery cells.
o
Check battery equalizer connections.
Voltmeter exceeds 30 volts dc
o
Check alternator output.
o
Check voltage regulator.
o
Check battery connections.
Battery Balance
NOTE
Allow at least 15 minutes to balance batteries
after any corrective measure has been taken.
1. Batteries out of balance (difference greater
than 1.5 volts between the two battery
banks).
o
Check battery equalizer connections.
o
Check equalizer cables for proper gauge.
o
Check battery connections.
2. Demand for 12-volt power exceeding rated
amperage output of battery equalizers
causing batteries to go out of balance.
o
Reduce 12-volt load or install additional
battery equalizer(s).
4. TROUBLESHOOTING AND TESTING THE
MULTIPLEX VEHICLES
4.1
ELECTRICAL SYSTEM DIAGNOSTIC
Using the message center display (MCD), check
if there are active errors in the vehicle electrical
Summary of Contents for LE MIRAGE XLII BUS SHELLS
Page 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1564 1ST EDITION...
Page 12: ...Section 00 GENERAL INFORMATION 10 PA1564 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005...
Page 13: ...Section 00 GENERAL INFORMATION PA1564 11 FIGURE 14 CONVERSION CHART 00006...
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Page 63: ...SECTION 01 ENGINE PA1564 33 FIGURE 13 POWER PLANT CRADLE INSTALLATION 01140...
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Page 229: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12...
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Page 379: ...Section 12 BRAKE AND AIR SYSTEM PA1564 21 FIGURE 38 AIR OPERATED BRAKING SYSTEM WE...
Page 380: ...Section 12 BRAKE AND AIR SYSTEM PA1564 22 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5...
Page 387: ...Section 12 BRAKE AND AIR SYSTEM PA1564 29 FIGURE 46 ABS 6S 5M CONFIGURATION...
Page 418: ...16 BW2158 Honeywell Commercial Vehicle Systems Company 4 2001 Printed in USA...
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Page 926: ...PROCEDURE NO SAV00044 REVISION 00 Page 2 of 2 Slide out...
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Page 1086: ...Section 22 HEATING AND AIR CONDITIONING PA1564 18 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP...
Page 1118: ...Section 22 HEATING AND AIR CONDITIONING PA1564 50 FIGURE 54 HEATER LINE SHUTOFF VALVES WE...
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Page 1125: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R...
Page 1126: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT...
Page 1149: ...Compressor 62 11053 Rev B SERVICE PARTS LIST for MODEL 05G TWIN PORT COMPRESSOR 1 2 3 4 5 6 R...
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Page 1223: ...Section 26 XLII SLIDE OUT PA1564 11...
Page 1224: ...Section 26 XLII SLIDE OUT PA1564 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION...