PREVOST X3-45 COACH 2018 Operator's Manual page 209

Appendix B - Troubleshooting Guide for Multiplex Vehicles
Problem/Symptom
de-icing system not
functioning
Defroster fan
functioning but no heat or
cooling available in the
driver area.
Low beam headlights and
front flasher on left side
not functioning
Electric horn not
functioning
Low beam headlights and
flasher on right side not
functioning
Probable Causes
Module AE47 is not powered
is
or is faulty
Module AE46 is not powered
or is faulty
Module AE48 is not powered
or is faulty
PA1627 X3-45 Operator's Manual
Actions
and ELECTRICAL SYSTEM. The
message "No Response ModA44,
Active" indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce these symptoms).
2. Check / reset circuit breaker CB1
3. Check / replace fuse F44
4. Probe gray connector on module to
see if it is powered.
1. Check the SYSTEM DIAGNOSTIC
menu of Driver Information Display
(DID). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message "No Response ModEA47,
Active" indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce these symptoms).
2. Check / reset circuit breaker CB1
3. Check / replace fuse F45
4. Probe gray connector on module to
see if it is powered.
1. Check the SYSTEM DIAGNOSTIC
menu of Driver Information Display
(DID). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message "No Response ModA46,
Active" indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce these symptoms).
2. Check / reset circuit breaker CB10
3. Check / replace fuse F19
4. Probe gray connector on module to
see if it is powered.
1. Check the SYSTEM DIAGNOSTIC
menu of Driver Information Display
(DID). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message "No Response ModA48,
Active" indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce these symptoms).
2. Check / reset circuit breaker CB10
3