PREVOST H3-41 Maintenance Manual page 203

SECTION 06: ELECTRICAL
Isolate the pneumatic accessories panel modules from the network
In the FRONT ELECTRICAL COMPARTMENT, disconnect C5.
Take the spare termination resistor on C3S in the MAIN POWER COMPARTMENT and connect it to C5 pin housing.
If the short circuit problem is in the pneumatic accessories panel all modules except AE47 and AE48 located into the pneumatic accessories
panel will respond normally.
Isolate the MAIN POWER COMPARTMENT from the network
Disconnect C3 Plug and connect the termination resistor into C3 pin housing.
If the short circuit problem is in the MAIN POWER COMPARTMENT or downstream, all front modules + the evaporator module will respond
normally.
The same process can be for the overhead compartment module.
PA1621 Maintenance Manual All Series | Revised Sept 2019 39