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
0003-06 Cylinder #3 Injector
4. At the MSD check if all three diag- 0004-05, 0005-05, and 0006-05 Diag-
Current Above Normal -
nostic codes: 0004-05, 0005-05,
nostic Codes are Active - Replace
Continued
and 0006-05 are active.
the Engine ECM (WP 0067).
0003-06 Only Active - Proceed to
Test Step 2.
Test Step 2. Isolate Problem with
Engine Control Wiring Harness.
1. Turn ignition switch to the OFF
position.
2. Disconnect EA-C12 (WP 0009,
Figure 5) harness connector from
EG-C1 (WP 0009, Figure 6) at the
valve cover base.
3. Turn ignition switch to the ON
position.
N OT E
Wait at least 30 seconds in order for diagnostic codes to become active.
Other fuel injector diagnostic codes may also set, ignore those codes
during this procedure.
4. Start engine or attempt to start
engine.
5. At the MSD check that diagnostic
0003-05 Becomes Active - ECM and
code 0003-05 is active.
harness are OK, proceed to Test
Step 3.
0003-06 Remains Active - Proceed
to step 6.
6. Turn OFF the ignition and battery
disconnect switch.
7. Disconnect ECM harness connec-
tor EA-C1 (WP 0009, Figure 3)
from Engine ECM J2.
8. Using digital multimeter, measure
Continuity - Engine control wiring
for continuity at the Engine ECM
harness is shorted. Replace engine
harness connector EA-C1 (WP
control wiring harness (WP 0080).
0009, Figure 3) terminal 59 and
No Continuity - ECM is faulty,
all other terminals and ground.
replace Engine ECM (WP 0067).
There should be no continuity.
Test Step 3. Test Center Fuel Injec-
tor Harness.
1. Turn OFF the ignition and battery
disconnect switch.
Change 1
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