PREVOST X3-45 COMMUTER User Manual

SECTION 06: ELECTRICAL
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual Section 06 revised release October 2021
43
7.4 ELECTRICAL SYSTEM DIAGNOSTIC
THROUGH THE DID
Using the Driver’s Info Display (DID), check if
there are active errors in the vehicle electrical
system. With the DIAGNOSTICS menu,
highlight VIEW ACTIVE FAULTS and then
highlight ELECTRICAL to request a diagnostic
of the electrical system from the MCM. Press the
enter key. If applicable, the DID shows the
multiplex device ID, the fault messages or fault
codes recorded. When more than one fault is
recorded, an arrow pointing down appears on
the right of the display. Use the down arrow to
see all the fault messages.
Once the problem corrected, the DID still shows
the fault as being active. You have to leave the
VIEW ACTIVE FAULTS menu, wait
approximately 20 to 30 seconds and then return
to VIEW ACTIVE FAULTS to request a new
diagnostic of the electrical system from the
MCM. The DID should display the fault as being
inactive. The MCM can store up to 20 faults, i.e.
the first 10 and the last 10. Middle faults will be
erased. If the breakers are tripped, the fault
history will be erased from the MCM memory.
NOTE
When performing an electrical system
diagnostic with the DID, the message « No
Response ModA41» indic
ates either module
A41 is not responding due to a DL0 (BBUS
MUX) link problem or module A41 is not
powered. Similar messages exist for all
modules (A42, A43, A44, etc.).
NOTE
Because it is easier to do, check first if the
module is powered by probing on J3
connector. If it is, then you can conclude that
there is a DL0 (BBUS MUX) link problem.
Refer to DL0 (BBUS
MUX) NETWORK
LAYOUT AND TRO
UBLESHOOTING in this
section.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in