MAHLE ACX150, Service Manual

Page: 30 / 202

EN | 29 | ACX150/250 | Replacement interventions
© MAHLE
faults in the power board, running out of
the clock battery, faults in the micro SD
card, faults in the sensors, replacement is
required in case of:

Impossibility to correctly complete
card programming.

Incorrect display operation

Block in the acquisition and display
of the analogue signals not caused
by faults in the sensors or by a
miscalibration.

Incorrect activation of command
relays.

Wrong indications of the internal
clock not due to lack of adjustment
or running out of battery.

Evident damage to board
components and circuits.
For the replacement of the board it is
recommended to position the new board
alongside the one to be replaced.
Disconnect and reconnect the cables in
sequence one by one, please read as
reference the ATTACHMENT 3 –
ELECTRICAL CONNECTION – LOGIC
ELECTRONIC BOARD
Connect the ACX station to the PC via the
USB cable, start the CLIMAUPDATE
software and press the “tools” icon; right
after that, switch on the ACX station.
Enter the “DEBUG” password and
confirm.
Select the machine type in the pull-down
menu
Reprogram the machine with the updated
software

Select the language

Carry out gas scale calibration

Carry out pressure calibration

Enter the machine registration code
(it can be obtained through Mahle
website
www.arcticproacxregistration.com
by selecting the machine serial
number on which you are
operating).

Carry out the machine setup.
14.2.3 Replacement of electronic
power board
After having excluded any problem
regarding power supply, fuses on the
switch block, connection cables, faults in
the logic board, faults in the controlled
actuators, replacement is required in case
of:

Incorrect functioning of the power
supply unit section.