TM 5-3805-293-23-1
0011
Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
ERROR/EVENT
CORRECTIVE ACTION
0003-05 Cylinder #3 Injector
10. Using a digital multimeter, test for
Current Below Normal -
continuity at Engine ECM harness
Continued
connector EA-C1 (WP 0009, Fig-
ure 3) between terminal 33 and
terminal 59.
11. Remove jumper wire from EA-
C12 (WP 0009, Figure 5) harness
connector terminal 3 and terminal
4.
12. Using a multimeter, test for conti-
Continuity - (Resistance less than
nuity between EA-C1 (WP 0009,
5.0 ohms) - Proceed to step 13.
Figure 3) terminal 59 and EA-C12
No Continuity - Engine control wiring
(WP 0009, Figure 5) terminal 4.
harness is open. Replace engine con-
trol wiring harness
(WP 0080).
13. Using a multimeter, test for conti-
No Continuity - Engine control wiring
nuity between EA-C1 (WP 0009,
harness is open. Replace engine con-
Figure 3) terminal 33 and EA-C12
trol wiring harness (WP 0080).
(WP 0009, Figure 5) terminal 3.
Test Step 3. Test Center Fuel Injec-
tor Harness.
1. Turn OFF the ignition and battery
disconnect switch.
2. Remove jumper wire from EA-
C12 (WP 0009, Figure 5) between
terminal 3 and terminal 4.
3. Remove valve cover and forward
fuel injector harness (WP 0103)
from fuel injector #3.
4. Install a jumper wire at fuel injec-
tor #3 (WP 0009, Figure 7)
between terminal 3 and terminal 4
of center fuel injector harness.
5. Using a digital multimeter, test for
Continuity - (Resistance should be
continuity between terminal 3 and
less than 5.0 Ohms) - Fuel injector is
terminal 4 at EG-C1 (WP 0009,
faulty. replace fuel injector #3 (WP
Figure 6) harness connector.
0075).
Connect EA-C12 (WP 0009, Figure 5)
harness connector to EG-C1 (WP
0009, Figure 6) at the valve cover.
No Continuity - Replace center fuel
injector harness (WP 0103).
Change 1
0011-40