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TM 5-4210-233-14&P-1
Table 4-2.
Unit Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM-IGNITION CIRCUITS-Continued
4
ENGINE/TRANSMISSION BUZZER REMAINS ON
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 3 of 16.)
Step 1.
Check low oil PSI switch.
Replace switch (see para 4-138).
Step 2.
Check low air PSI switch.
Replace switch (see para 4-9.4).
Step 3.
Check low rear air PSI switch.
Replace switch (see para 4-9.4).
Step 4.
Check high transmission oil pressure switch.
Replace switch (see para 4-9.4).
Step 5.
Check high/low voltage alarm.
Replace alarm. (see para 4-9.4).
Step 6.
Check wiring for continuity.
Replace wire (see para 4-9.4).
5
ENGINE/TRANSMISSION ALARM BUZZER DOES NOT SOUND DURING IGNITION TEST
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 6 of 16.)
Step 1.
Check for +12V on ignition accessory buss.
Refer to "+12 volts not present at battery accessory buss" troubleshooting procedure.
Step 2.
Check for +12V at circuit breaker #4 on ignition accessory buss.
Replace breaker (see para 4-99).
Step 3.
Place a jumper from wire 1046 to a good ground.
If buzzer sounds, go on to step 4.
If buzzer does not sound, replace alarm buzzer unit (see para 4-96).
4-71
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