PREVOST H3-41 Maintenance Manual page 200

SECTION 06: ELECTRICAL
If all 17 modules (AE41 to AE57) are showed as Not Responding and Active Fault, the problem could be:
A short circuit somewhere on the DL0H, DL0L (BBUS MUX) network.
•
The network is completely open circuit. That means none of the two termination resistors are
•
connected.
Several simple tests can be done to locate the problem.
Use the spare "FRONT ELECTRICAL COMPARTMENT to MAIN POWER COMPARTMENT" CAN
FRONT ELECTRICAL COMPARTMENT: disconnect C1 and connect C1 pin housing to C1S socket housing.
RJB: disconnect C3 and connect C3 socket housing to C3S pin housing.
5 th baggage compartment: disconnect C100 and connect C100 pin housing to C100S socket housing.
36 PA1621 Maintenance Manual All Series | Revised Sept 2019