TM 5-3805-296-23-2
0074
Table 1. 1279 Ejector Forward Proportional Solenoid Diagnostic Codes Continued.
074
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
5. Using digital multimeter
1279-06 Ejector Forward
Continuity Replace hitch wiring
(WP 0540), test for continuity
Solenoid Current Above
harness (WP 0401).
between connector E-C2
Normal Continued
Proceed to Test Step 6.
terminal 2 (WP 0012, Figure 143)
No Continuity Proceed to Test
and ground.
Step 5.
Test Step 5. Test for Shorted Main
Cab Wiring Harness.
1. Disconnect connector W-C13
(WP 0012, Figure 89) from
transmission/chassis ECM.
2. Disconnect connector W-C12
(WP 0012, Figure 88) from
transmission/chassis ECM.
3. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C3
Proceed to Test Step 6.
terminal 2 (WP 0012, Figure 139)
No Continuity Proceed to step 4.
and all other terminals
in connector W-C3
(WP 0012, Figure 139).
4. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 6.
terminal 51 (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 6.
terminal 51 (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 6.
terminal 51 (WP 0012, Figure 89)
No Continuity Replace transmission/
and ground.
chassis ECM (WP 0495).
Proceed to Test Step 6.
0074-16
