Husqvarna P524 Workshop Manual page 94

Fault Possible
cause
Machine Wiring fault
will not start
despite the
start motor
working
Machine Fault in seat
stops switch
when the
P-brake is
deactivated.
Machine PTO Enabled
stops when
Faulty P-brake
the driver
switch.
leaves the
seat with
the P-brake
applied.
Machine Faulty P-brake
does not switch.
stop when
Fault in seat
the driver
switch
leaves the
seat without
releasing
Wiring fault
the P-brake.
Steps Troubleshooting
25 Check the pink wire and connectors between J1
(pin 4) and the fuel valve.
26 Check the black cable and connectors between J1
(pin 6) and the engine.
27 Measure the resistance between the cable going to
J3 (pin 1) and the cable going to J3 (pin 4). With no-
one sitting in the seat, the resistance should be low
and high when there is someone in the seat.
28 Check the PTO switch.
29 Check the P-brake microswitch.
30 Check the P-brake microswitch.
31 Carry out checks according to step 23.
32 Check the black cable and connectors between the
engine and J1 (pin 6) on the control board.
33 Check the black cable and connectors between the
seat switch and J3 (pin 1) on the control board.
34 Check the black cable and connectors between the
seat switch and connector on P-brake.
35 Check the green and blue cables and connectors to
the P-brake microswitch.
36 Check the blue cable and connectors from J3 (pin 3)
on the control board to the connector before the
P-brake.
Appendices and schedules
Action
Repair the cable or
replace the cabling.
Check the seat switch
and connector, replace
if necessary.
Disable PTO.
Replace the
microswitch.
Replace the
microswitch.
Check the seat switch
and connector, replace
if necessary.
Repair the cable or
replace the cabling.
English – 93