TM 5-3805-293-23-1
0016
Table 1. Transmission Code (0041-03 to 0444-06) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
0144-03 Backup Alarm Relay
System Response:
Voltage Above Normal
Backup alarm will not operate.
ECM will log diagnostic code.
Test Step 1. Test Relay Control.
N OT E
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a
connection is found, correct the problem and verify that this diagnostic
code is active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
1. Connect MSD (WP 0006). Select
Trans/Chassis 120M ECM and
verify 0144-03 is active.
2. Turn ignition switch to the OFF
position.
3. Disconnect harness connector
FA-C33 (WP 0009, Figure 142)
from backup alarm relay (WP
0009, Figure 141) (WP 0188).
4. Disconnect harness connector
FA-C21 (WP 0009, Figure 124)
(WP 0137).
5. Using digital multimeter, test for
Continuity - Replace rear chassis
continuity between harness con-
wiring harness (WP 0188).
nector FA-C21 (WP 0009, Figure
No Continuity - Replace transmis-
124) terminal 5 and all other ter-
sion ECM (WP 0137).
minals on harness connector FA-
Connect harness connector FA-C33
C21. There should be no continu-
(WP 0009, Figure 142) to backup
ity.
alarm relay (WP 0009, Figure 141)
(WP 0188).
Proceed to step 6.
6. Using MSD (WP 0006), select
0144-03 Code Active - Repeat trou-
Trans/Chassis 120M ECM and
bleshooting code from the beginning.
verify 0144-03 is active.
0144-03 Code Not Active - Trouble-
shooting complete.
