TM 5-3805-296-23-1
0054
Table 1. 0144 Backup Alarm Diagnostic Code Continued.
054
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using digital multimeter
0144-06 Backup Alarm Relay
Continuity Replace main cab wiring
(WP 0540), test for continuity
Current Above Normal
harness (WP 0505).
between connector W-C13
Continued
Proceed to Test Step 4.
terminal 16 (WP 0012, Figure 89)
No Continuity Proceed to step 5.
and all other terminals
in connector W-C13
(WP 0012, Figure 89).
5. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 4.
terminal 16 (WP 0012, Figure 89)
No Continuity Proceed to step 6.
and all terminals in connector
W-C12 (WP 0012, Figure 88).
6. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 4.
terminal 16 (WP 0012, Figure 89)
No Continuity Replace transmission/
and ground.
chassis ECM (WP 0495).
Proceed to Test Step 4.
Test Step 4. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. Ensure backup alarm relay and
flood enable relay are installed on
fuse panel.
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
4. At MSD, check for active
144-6 Backup Alarm Relay Current
diagnostic codes (WP 0008).
Above Normal Becomes Inactive
Troubleshooting complete.
144-6 Backup Alarm Relay Current
Above Normal Remains Active
Repeat troubleshooting from the
beginning.
END OF WORK PACKAGE
0054-12
