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
0004-05 Cylinder #4 Injector
11. Remove jumper wire from EA-
Current Below Normal -
C12 (WP 0009, Figure 5) harness
Continued
connector terminal 1 and terminal
2.
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 64 and EA-C12
No Continuity - Engine control wiring
(WP 0009, Figure 5) terminal 2.
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 8 and EA-C12
trol wiring harness (WP 0080).
(WP 0009, Figure 5) terminal 1.
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 1 and terminal 2.
3. Remove valve cover and center
fuel injector harness (WP 0103)
from fuel injector #4.
4. Install a jumper wire at fuel injec-
tor #4 (WP 0009, Figure 7)
between terminal 1 and terminal 2
of center fuel injector harness.
5. Using a digital multimeter, test for
Continuity - (Resistance should be
continuity between terminal 1 and
less than 5.0 Ohms) - Fuel injector is
terminal 2 at EG-C1 (WP 0009,
faulty. Replace fuel injector #4 (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
base.
No Continuity - Replace center fuel
injector harness (WP 0103).
0004-06 Cylinder #4 Injector
System Response:
Current Above Normal
A warning will appear on instrument
panel. ECM will log diagnostic code.
Possible Performance Effect:
Engine will have low power and/or
rough running.
Change 1
