TM 10-3930-641-20
ELECTRICAL SYSTEMS TROUBLESHOOTING (CONT)
(Sheet 2 of 2)
PROBLEM NO. 30 (CONT)
ANSWER
REMARKS
YES NO
QUESTION OR INSTRUCTION
STEP
POWER switch ON. TRANS. selector in REVERSE.
Is battery voltage present at backup alarm where DK G/R
3
2
1
wire connects?
--
--
See page 2-329.
Replace backup alarm.
2
4
5
Switch is on transmission interlock mechanism.
Is battery voltage present at backup alarm switch where
3
DK GR/R wire connects?
--
--
See page 2-53.
16 gage DK G/R wire from backup alarm to switch is open.
4
7
Is battery voltage present where R wire connects?
5
6
16 gage R wire from switch to 15 amp CB is open. Repair/
6
replace wire with same gage wire.
See BACKUP ALARM SWITCH TESTING/ADJUSTMENT,
7
End
