PREVOST X3-45 Multiplex, Руководство по обслуживанию

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13
REVISED 5/31/05
Troubleshooting: General
SAFE MAINTENANCE PRACTICES
WARNING! PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO AVOID PERSONAL
INJURY OR DEATH:
When working on or around a vehicle, the following
general precautions should be observed at all times:
1. Park the vehicle on a level surface, apply the
parking brakes, and always block the wheels.
Always wear safety glasses.
2. Stop the engine and remove ignition key when
working under or around the vehicle. When
working in the engine compartment, the engine
should be shut off and the ignition key should be
removed. Where circumstances require that the
engine be in operation, EXTREME CAUTION should
be used to prevent personal injury resulting from
contact with moving, rotating, leaking, heated or
electrically charged components.
3. Do not attempt to install, remove, disassemble
or assemble a component until you have read
and thoroughly understand the recommended
procedures. Use only the proper tools and observe
all precautions pertaining to use of those tools.
4. If the work is being performed on the vehicle’s
air brake system, or any auxiliary pressurized air
systems, make certain to drain the air pressure
from all reservoirs before beginning ANY work
on the vehicle. If the vehicle is equipped with an
AD-IS
™
air dryer system or a dryer reservoir
module, be sure to drain the purge reservoir.
5. Following the vehicle manufacturer’s recommended
procedures, deactivate the electrical system in a
manner that safely removes all electrical power
from the vehicle.
6. Never exceed manufacturer’s recommended
pressures.
7. Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove
a component or plug unless you are certain all
system pressure has been depleted.
8. Use only genuine Bendix
®
replacement parts,
components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent
size, type and strength as original equipment and
be designed specifically for such applications and
systems.
9. Components with stripped threads or damaged
parts should be replaced rather than repaired. Do
not attempt repairs requiring machining or welding
unless specifically stated and approved by the
vehicle and component manufacturer.
10. Prior to returning the vehicle to service, make
certain all components and systems are restored
to their proper operating condition.
11. For vehicles with Antilock Traction Control (ATC),
the ATC function must be disabled (ATC indicator
lamp should be ON) prior to performing any vehicle
maintenance where one or more wheels on a drive
axle are lifted off the ground and moving.
REMOVING THE EC-60
™
CONTROLLER
ASSEMBLY
1. Turn vehicle ignition off.
2. Remove as much contamination as possible prior to
disconnecting electrical connections.
3. Note the EC-60
™
controller assembly mounting position
on the vehicle.
4. Disconnect the electrical connectors from the EC-60
™
controller.
5. Remove and retain the mounting bolts that secure the
EC-60
™
controller.
CAUTION
The VIN of the vehicle is stored in the ECU internal
memory, and is cross-checked by the ECU using
information obtained from other vehicle controllers.
If the VIN stored in the ECU does not match the VIN
obtained from the other vehicle controller, the ECU will
generate an ECU Internal VIN Mismatch DTC.
Accordingly, do not switch Advanced controllers from
one vehicle to another.
OBTAINING A NEW EC-60
™
ADVANCED
CONTROLLER
Should the Advanced EC-60
™
controller require replacement,
certain steps must be followed:
1. Record the vehicle model, VIN, model year and date
of manufacture from the vehicle.
2. Record the part number of the EC-60
™
Advanced
Controller.
3. Provide this information to your local OEM vehicle
service department to obtain a new ECU. The OEM
service department will install the same parameter set
in the new controller that was loaded into the original
ECU at the vehicle OEM assembly facility.
INSTALLING A NEW EC-60
™
CONTROLLER
CAUTION! When replacing the EC-60
™
controller, verify
with the OEM service department that the unit you are
installing has the correct parameter set. Failure to do
so could result in a loss of features or degraded ESP
performance.