M2/M3 BRADLEY FIGHTING VEHICLE: TURRET - OD1609 LESSON 3/TASK 3
However, assume again that no fault message is displayed.
(3)
The third possibility is that the display will show a NO FAULTS FOUND
message. When a NO FAULTS FOUND message appears on the display, it is necessary to
ask two questions before continuing the procedure. The first question asks if the
test is being repeated.
The second question asks whether the symptom has been
corrected.
If the test is being run for the first time and the symptom has not
been corrected, further testing is required, as described in paragraph 2c below.
If the test is being repeated, or if the test is not being repeated but the fault
symptom that prompted the test has been corrected, the test is complete. In this
case, the follow-on procedures listed below should be performed:
(a)
If the test is a repeat or the symptom has been corrected, move the
TURRET POWER switch to OFF.
(b)
Turn OFF the MASTER POWER switch.
(c)
Remove the STE test set from the diagnostic panel.
(d)
If they were removed during earlier test procedures, install center and
right turret floor plates (TM 9-2350-252-20-2, page 4-22).
c.
Test Continuation - Isolating a Fault.
When the SETCOM display shows a NO
FAULTS FOUND message, but a fault is evident in the system (i.e., the symptom which
prompted the test to be run in the first place is still present), further testing
will be required to isolate the component which is causing the malfunction. Once
the faulty component has been located and repaired or replaced, test 2620 should be
repeated to verify a NO FAULTS FOUND condition.
(1)
Testing Wiring Harness 2W202. The first suspect is wiring harness 2W202.
To see if wiring harness 2W202 is good, two tests are run.
If any of the tests
described in (a) and (b) below indicate that wiring harness 21202 is not good,
replace the wiring harness, following the procedures outlined in TM 9-2350-252-20-
2-2, page 5-305. Then repeat test 2620 to verify that the problem has been solved.
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