Hisun HS500 Owner's Manual page 174

Installation position of ECU and reducer
① ECU ② Reducer
The installation location of the ECU will be
greatly effected by temperature changes and
external humidity. Housing has a membrane
made of Goretex material for pressure
balance between inside the shell and the
Electric power steering system
surrounding environment, but also to prevent
the parts from moisture intrusion.
Do not remove the membrane or replace by
other parts.
On the shell of ECU unit, there are sets of
electric plugs by cables and function as
follows:
• P1：supply power to EPS system
• P2：supply power to motor of EPS
• P3 ： connect with cable of UTV and
transfer single that ECU required
• P4：connect with steering torque sensor,
supply power to steering torque
sensor and accept single of torque
• P5：connect with motor
9-6