TM 5-3805-298-23-1
0104
Table 1. 740 Differential Lock Solenoid Diagnostic Codes - Continued.
0104
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using MSD, check for active
Diagnostic Code 740-5 Differential
740-6 Differential Lock
diagnostic codes (WP 0008).
Lock Solenoid Current Below
Solenoid Current Above
Normal Becomes Active - Replace
Normal - Continued
differential lock solenoid (WP 0378).
Proceed to Test Step 5.
Diagnostic Code 740-6 Differential
Lock Solenoid Current Above
Normal Remains Active - Proceed to
Test Step 3.
Test Step 3. Test for Shorted Front
Frame Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector LE-C1
(WP 0012, Figure 87) from
connector C-C10 (WP 0012,
Figure 86).
3. Using digital multimeter
Continuity - Replace front frame wiring
(WP 0174), test for continuity
harness (WP 0301).
between connector LE-C1
Proceed to Test Step 5.
(WP 0012, Figure 87) terminal 9
No Continuity - Proceed to step 4.
and terminal 10.
4. Using digital multimeter
Continuity - Replace front frame wiring
(WP 0174), test for continuity
harness (WP 0301).
between connector LE-C1
Proceed to Test Step 5.
(WP 0012, Figure 87) terminal 9
No Continuity - Proceed to Test Step 4.
and ground.
Test Step 4. Test for Shorted Lower
Cab Wiring Harness.
1. Remove left lower cab access
panels (WP 0347).
2. Remove transmission ECM cover
(WP 0266).
0104-7
