TM 5-2420-231-23-1
0043
Table 1. Display and/or Backup Alarm Does Not Turn On.
0043
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Display and/or Backup
Test Step 1. Verify Operation of
Alarm Does Not Turn On
Backup Alarm.
1. Turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
2. Turn light control switch lever (Fig-
ure 1, Item 4) to SER. DRIVE posi-
tion (Figure 1, Item 3) (TM 5-2420-
231-10).
3. Place powershift lever (Figure 1,
Item 1) down in the R position (Fig-
ure 1, Item 5) (TM 5-2420-231-10).
4. Listen for backup alarm and main
Backup Alarm and Main Alarm Do
alarm, and observe front display
Not Sound - Troubleshoot alarm (WP
screen (Figure 1, Item 2) (TM 5-
0039) and then proceed to Test Step 30.
2420-231-10) (WP 0006).
Backup Alarm Does Not Sound and
Front Display Screen Indicates
"GA", Then "rA" - Perform Test Step 2.
Backup Alarm Does Not Sound and
Front Display Screen Indicates
"GA", Then "nA" - Perform Test Step
7.
Backup Alarm Does Not Sound and
Front Display Screen Is Blank -
Perform Test Step 18.
Backup Alarm Sounds and Front
Display Screen Is Blank - Perform
Test Step 25.
