TM 5-2420-231-23-1
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USING THE FRONT DISPLAY PANEL CONTINUED
Output Test
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When the Output Test mode is selected, the display screen will illuminate "ot" (Figure 16, Item 1). The Output Test
Mode cannot be entered if any vehicle movement is detected or if a speed sensor fault is active. The transmission
will be locked in neutral until the shift lever is moved from its current position first into neutral and then into another
position.
Figure 16. Output Test Mode.
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The display screen will illuminate LED segments to represent 1 (Figure 17, Item 1), 2 (Figure 17, Item 3),
3 (Figure 17, Item 6), 4, 5, or 8, with each number indicating the output that the transmission controller is activating.
The display will also illuminate segments indicating "G" (Figure 17, Item 2) for a good circuit, "S" (Figure 17, Item 4)
for a short circuit, and "O" (Figure 17, Item 5) for an open circuit.
Figure 17. Output Test Mode Display.
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