Bendix Commercial Vehicle Systems ACom Diagnostics V.5.9 - Manual (Page 14)

14
Viewing Saved Data
The user is able to view saved data at a later time by
pressing the “Open File” button. Once the open fi le
button has been pressed the user will be prompted to
select the data fi le that they want to view.
Figure 42
Control Buttons
Open Opens saved data
Close Closes the confi guration screen
Help Launches Help System
Component Test
This window enables the user to test the connection to
various components that interface with the ABS ECU.
If the expected results are not observed, the user is
able to retrieve service data information to assist in
resolving the issue. All tests, except the sensor test,
are intended to be performed with the vehicle parked.
Before a test can be initiated the user will be prompted
to acknowledge a warning regarding the vehicle being
parked on a level fl at surface with wheels blocked and
keep hands, feet etc. away from moving parts.
Figure 43
Test Selection
The test selection region allows the user to choose a
test to conduct. There are a maximum of six different
tabs to choose from Modulators, Lamps, Switches,
Sensors, ESP and Miscellaneous. Depending on the
type of ECU and its’ confi guration, will determine which
tests are available. Furthermore, within a given test
list, only tests that are valid for the ABS ECU and its’
confi guration will be visible. To navigate between these
categories, the user clicks on the corresponding tab at
the top of the region. After selecting which component
to test, a list of valid tests will be displayed. Aside from
the list of valid tests, status is only displayed when test
is selected.
Figure 44
Modulator Tests
Given the current confi guration of the ECU, a list
of modulator tests will appear in the “Modulator Test
Region”. A modulator test consists of actuating a
given modulator, to produce an audible sound. By
listening to the sound that is made, the user will be able
to determine if it is functioning properly or not. The
user can select which modulator to test. The program
provides instructions for the test in the window.
A chuff test is a test of all of the known modulators on
the system, given the current confi guration of the ECU.
This test is conducted in two cycles. Each modulator
is chuffed once during the fi rst cycle, then again on the
second cycle. After each test, the user will be asked to
verify that the selected modulator, or in the case of the
chuff test, all modulators behaved correctly.
The chuff test sequence is:
Steer axle right
Steer axle left
Drive axle right
Drive axle left
Additional axle right
Additional axle left
Figure 45
The tables below indicate which modulators are valid
for a given confi guration of the ECU.
Trailer
Confi g PCV A PCV B
2S/1M X
2S/2M X X
4S/2M X X