TM 10-3930-664-10 d. Engine Compartment. KEY OR CONTROL FUNCTION 1 Auxiliary Fuel Shut-Off Switch Permits   cranking   the   engine   without   starting   during   STE/ICE   diagnostic testing.  The switch is in the OFF position when the switch is up.  The switch is ON when the switch is down. e. Right Rear Light Box KEY OR CONTROL FUNCTION WARNING 1 Back-Up Alarm Sounds whenever the range and travel select lever is placed in the RI, R2, or R3 position.  The alarm will not operate in the blackout lighting mode. The back-up alarm does not operate in the blackout lighting mode.  Use extreme caution when backing in the blackout mode.  Do not disconnect this feature at any time. 2-14