PREVOST LE MIRAGE XLII BUS SHELLS, Maintenance Manual

Page: 119 / 1260

Section 06: ELECTRICAL
PA1564
7
1.8 PRECAUTIONS
DANGER
Prior to working on a system inside vehicle,
make sure to cut electrical power and air
supply. A component could be supplied with
electricity even if the ignition switch is set to
the OFF position and/or a component could
be pressurized even if air tanks are emptied.
Always refer to the appropriate wiring and
pneumatic diagrams prior to working on
electrical and/or pneumatic systems.
NOTE
When the ignition switch is set to the OFF
position, the electrical components are not
energized except for the CECM (Chassis
Electronic Control Module), engine ECM,
transmission TCM, instrument cluster module,
the battery equalizer and some Multiplex
modules which are energized during 15
minutes after the ignition has been set to the
OFF position. If the vehicle will not be operated
for a long period (more than 2 weeks), it is
recommended, in order to prevent the batteries
from discharging, to trip main circuit breakers
(1 and 2) located in the rear circuit breakers
panel to stop the small current drawn by the
radio preset station memory, the CECM
memory and the instrument cluster clock. Note
that the radio station presets will be erased,
same thing for the diagnostic codes history and
the instrument cluster clock will have to be
reset.
CAUTION
Prior to arc welding on the vehicle, refer to
"Multiplex Modules Disconnection Procedure
Prior To Welding" in section 00 GENERAL of
this manual to avoid serious damage to the
vehicle components.
Black
Blue Green
Green
Grey
Orange
Black
Red
Grey
Brown
Green
Yellow
1
2
1
5
14 30 14 30
1 15 15 1
1
11
20
13
23
15
14
4
5
16
17
18
19
10
29
Guides, not
terminal
cavities
A
B C D
E
F G H
24
BACK PROBING VIEW
FIGURE 2: MULTIPLEX MODULE CONNECTORS PIN-
OUT
06624