TM 5-3805-261-20HORN AND BACK-UP ALARM TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONb.BACK-UP ALARM FAILS TO OPERATE WITH TRANSMISSION IN REVERSE. (cont)Step 3. Check the back-up alarm (Figure 7-149).Figure 7-149If the back-up alarm is damaged or defective--replace. Refer to paragraph 7-104.Step 4. Test the continuity of the back-up alarm switch (Figure 7-150). Connect one multimeter lead to the back ofswitch and one to around.Figure 7-1507-242
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