TM 5-3805-296-23-1
0038
Table 1. 1273 Module Communication Diagnostic Code Continued.
038
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
5. Using digital multimeter
1273-09 Chassis Control
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Module Abnormal Update
Replace fuse panel wiring harness
between connector W-C8
Rate Continued
(WP 0515).
terminal 31 (WP 0012, Figure 282)
Proceed to Test Step 13.
and connector W-C13 terminal 47
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 89).
Replace main cab wiring harness
(WP 0505).
Proceed to Test Step 13.
Test Step 10. Inspect Ground Point
of Cab Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Inspect ground point of cab wiring
Ground Point or Ring Terminal Dirty
harness (WP 0012, Figure 316) for
or Corroded Clean as necessary.
dirt, corrosion, and damage.
Proceed to Test Step 13.
Ring Terminal Defective Replace
main cab wiring harness (WP 0505).
Proceed to Test Step 13.
No Problem Found Install main cab
wiring harness on ground point
(WP 0505). Proceed to Test Step 11.
Test Step 11. Verify if Code is Still
Active.
1. Ensure all harness connectors are
connected.
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
1273-9 Chassis Control Module
3. At MSD, check for active
Abnormal Update Rate Becomes
diagnostic code 1273-09 Chassis
Inactive Troubleshooting complete.
Control Module Abnormal Update
1273-9 Chassis Control Module
Rate (WP 0008).
Abnormal Update Rate Remains
Active Proceed to Test Step 12.
0038-8
