TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
23. BACKUP ALARM DOES NOT OPERATE (MODEL B ONLY) (continued).
OPERATIONAL TEST
(1) Turn engine switch to "ON" position.
(2) Turn light switch to "SERVICE" or
"PARK" light position.
(3) Place transmission shift lever in
"REVERSE" position.
(4) Listen for backup alarm audible
warning tone.
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