Bendix Commercial Vehicle Systems ACom Diagnostics V.5.9 - Manual (Page 19)

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Figure 63
Indicator Lamp Test
This test shall verify the wiring of the lamp and the ABS
ECU’s ability to illuminate the lamp. The tester is asked
to confi rm the result of the test.
Figure 64
Traction Lamp Test
This test verifi es the wiring of the lamp and the ABS
ECU’s ability to illuminate the lamp. The tester is asked
to confi rm the result of the test.
Figure 65
Retarder Test
This test shall verify the operation of the retarder by
enabling and disabling the retarder while the user revs
the engine and listens for retarder to be enabled or
disabled. The tester is asked to confi rm the result of
the test.
Figure 66
Traction Disable Test
This test verifi es that the traction control system can
be disabled.
Figure 67
ATC Valve Test
This test will verify the wiring and plumbing of the
ATC valve and the ABS ECU’s ability to energize the
modulator for 3.5 seconds wait 3 seconds and then
re-energize the traction modulator for another 3.5
seconds.
The tester will be asked to confi rm the results of the
test.
If the vehicle has ESP it will have an additional
ATC valve on the steer axle of the vehicle.
Figure 68
Trailer Modulator Chuff Test
This test is available only if the ABS ECU is an Advanced
EC-60
™ . The test verifi es the trailer modulator is
functioning correctly when the foot brake is applied,
while the program energizes the modulators, and the
user listens for air or no air being exhausted.
Figure 69