PREVOST X3-45 VIP 2017 Owner's Manual page 193

Appendix B - Troubleshooting Guide for Multiplex Vehicles
Problem/Symptom
Windshield washer
functioning
Windshield upper section
de-icing system
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
Probable Causes
not Module AE44 is not powered
or is faulty
not
Module AE47 is not powered
is
or is faulty
Module AE46 is not powered
or is faulty
Actions
1. Check the SYSTEM DIAGNOSTIC
menu of Driver Information Display
(DID). Select FAULT DIAGNOSTIC
and ELECTRICAL
message "No Response
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
message "No Response
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
message "No Response
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.
3
SYSTEM. The
ModA44,
SYSTEM. The
ModA47,
SYSTEM. The
ModA46,