TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
19. One or Both Backup
6.
Disconnect the rear lamps har-
Lights Do Not Operate
ness connector AG-C18 (WP
and/or Backup Alarm
0009, Figure 345) from right
Does Not Operate - Con-
backup light (WP 0177).
tinued
7. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector AG-
Replace right backup light (WP 0177).
C18 (WP 0009, Figure 345) termi-
Proceed to step 18.
nal 1 and 2. Voltage should be 18
Voltage Less Than 18 Volts -
to 26 volts.
Replace rear lamps harness (WP
0178).
Proceed to step 18.
8. Disconnect the rear lamps har-
ness connector AG-C7 (WP 0009,
Figure 344) from left backup light
(WP 0177).
9. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector AG-
Replace left backup light (WP 0177).
C7 (WP 0009, Figure 344) termi-
Proceed to step 18.
nal 1 and 2. Voltage should be 18
Voltage Less Than 18 Volts -
to 26 volts.
Replace rear lamps harness (WP
0178).
Proceed to step 18.
10. Disconnect the rear lamps har-
ness connector AG-C18 (WP
0009, Figure 345) from right
backup light (WP 0177).
11. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector AG-
Replace right backup light (WP 0177).
C18 (WP 0009, Figure 345) termi-
Proceed to step 12.
nal 1 and 2. Voltage should be 18
Voltage Less Than 18 Volts -
to 26 volts.
Replace rear lamps harness (WP
0178).
Proceed to step 18.
12. Disconnect the rear lamps har-
ness connector AG-C7 (WP 0009,
Figure 344) from left backup light
(WP 0177).
0023-117
