PREVOST H3-45 2023 User Manual

Problem / Symptom Probable Causes Actions
Rear flashers not
functioning
Stoplights and center
stoplights not functioning
Module AE51 is not powered
or is faulty
1. Check the DIAGNOSTICS menu of Driver
Information Display (DID). Select VIEW
ACTIVE FAULTS and ELECTRICAL. The
message “No Response ModA51, Active”
indicates a power problem on the module. (A
DL0 (BBUS MUX) network problem would
show the same message but doesn't produce
this symptom).
2. Check / reset circuit breaker CB8
3. Check / replace fuse F107
4. Probe gray connector on module to see if it is
powered.
Engine is overheating
and radiator fans do not
engage
Module AE52 or AE49 is not
powered or is faulty
1. Check the DIAGNOSTICS menu of Driver
Information Display (DID). Select VIEW
ACTIVE FAULTS and ELECTRICAL. The
message “No Response ModA52/ ModA49,
Active” indicates a power problem on the
module. (A DL0 (BBUS MUX) network
problem would show the same message but
doesn't produce this symptom).
2. Check circuit breaker CB5
3. Check / replace fuse F133, F134
4. CB201-CB208
The A/C compressor
clutch does not engage
Module AE54 (or AE52) is
not powered or is faulty
1. Check the DIAGNOSTICS menu of Driver
Information Display (DID). Select VIEW
ACTIVE FAULTS and ELECTRICAL. The
message “No Response ModA54, Active”
indicates a power problem on the module. (A
DL0 (BBUS MUX) network problem would
show the same message but doesn't produce
this symptom).
2. Check / reset circuit breaker CB5
3. Check / replace fuse F135
4. Probe gray connector on module to see if it is
powered.
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PREVOST H3-45 2023 Specifications

General

Manufacturer	Prevost
Model	H3-45
Year	2023
Category	Buses
Engine	Volvo D13
Horsepower	500 hp
Length	45 ft
Width	102 in
Seating Capacity	56 passengers
Air Conditioning	Yes
GVWR	54, 000 lbs
Entertainment System	Available