TM 5-3805-296-23-1
0038
Table 1. 1273 Module Communication Diagnostic Code Continued.
038
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
11. Using digital multimeter
1273-09 Chassis Control
Continuity Replace main cab wiring
(WP 0540), test for continuity
Module Abnormal Update
harness (WP 0505). Replace fuse F20
between connector W-C13
Rate Continued
(TM 5-3805-296-10).
terminal 47 (WP 0012, Figure 89)
Proceed to Test Step 13.
and all terminals in connector
No Continuity Proceed to Test
W-C12 (WP 0012, Figure 88).
Step 8.
Test Step 8. Test for Shorted Fuse
Panel Wiring Harness.
1. Using digital multimeter
Continuity Replace fuse panel wiring
(WP 0540), test for continuity
harness (WP 0515). Replace fuse F20
between connector CG-C1
(TM 5-3805-296-10).
terminal 31 (WP 0012, Figure 283)
Proceed to Test Step 13.
and all other terminals in CG-C1
No Continuity Proceed to step 2.
(WP 0012, Figure 283).
2. Using digital multimeter
Continuity Replace fuse panel wiring
(WP 0540), test for continuity
harness (WP 0515). Replace fuse F20
between connector CG-C1
(TM 5-3805-296-10).
terminal 31 (WP 0012, Figure 283)
Proceed to Test Step 13.
and ground.
No Continuity Replace transmission/
chassis ECM (WP 0495). Replace fuse
F20 (TM 5-3805-296-10).
Proceed to Test Step 13.
Test Step 9. Test for Open Main Cab
Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector CG-C1
(WP 0012, Figure 283)
from connector W-C8
(WP 0012, Figure 282).
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 4.
between connector W-C8
Resistance Greater Than 5.0 Ohms
terminal 31 (WP 0012, Figure 282)
Replace main cab wiring harness
and connector W-C13 terminal 1
(WP 0505).
(WP 0012, Figure 89).
Proceed to Test Step 13.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 5.
between connector W-C8
Resistance Greater Than 5.0 Ohms
terminal 31 (WP 0012, Figure 282)
Replace main cab wiring harness
and connector W-C13 terminal 23
(WP 0505).
(WP 0012, Figure 89).
Proceed to Test Step 13.
0038-7
