Running Self-Test 666

M2/M3 Bradley Fighting Vehicle: Troubleshooting
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(b) VTM Confidence Test 99.

To perform the second confidence

test, set the TEST SELECT switches to 99; then, press and release the TEST

button. The VTM display should flash some numbers and then show PASS. If

the display does not show PASS, troubleshoot the test set for the symptom

VTM DISPLAYS AN ERROR CODE, in accordance with TM 9-4910-751-14-1, chapter

To clear the unit, first set the TEST

SELECT switches on the VTM to 00, then press and release the TEST button.

Check the display on the SETCOM. The SETCOM display should show STE-M1/FVS

CLEAR UNIT. If it does not, troubleshoot the test set for the symptom SET

COMMUNICATOR DOES NOT DISPLAY STE-M1/FVS CLEAR UNIT, as outlined in TM 9-

4910-751-14-1, chapter 5.

(3) Running Self-Test 666. From this point on, all testing is done

using the SETCOM unit. Continue the self-test by performing the following

steps.

NOTE

The sections of the self-test outlined below have been

titled to assist in identifying the main component

being tested.

In some cases, components other than

the main component identified in the section title are

being simultaneously tested.

(a) Beginning Self-Test 666.

To begin self-test 666, press the

CLEAR button on the SETCOM. The display should read: ENTER TEST NUMBER. If

the display cannot be cleared (does not read ENTER TEST NUMBER), replace the

VTM, in accordance with the procedures outlined in TM 9-4910-751-14-1. The

faulty VTM must undergo intermediate direct support (IDS) maintenance level

troubleshooting procedures for symptom 25, as outlined in TM 9-4910-751-14-

2, chapter 6.