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
0100 10 Engine Oil Pressure
Test Step 1. Test 5-Volt and Signal
Sensor Abnormal Rate of
Circuit.
Change - Continued
N OT E
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a
connection is found, correct the problem and verify that this diagnostic
code is active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
1. Connect MSD (WP 0006). Select
Engine ECM C6.6 120M.
2. Start and run the engine and
verify 0100-10 is active.
3. Turn ignition switch to the OFF
position.
4. Disconnect harness connector
EA-C1 (WP 0009, Figure 3) from
Engine ECM J2.
5. Disconnect the engine oil pres-
sure sensor EA-C5 (WP 0009,
Figure 19) harness connector.
6. Install a jumper wire between EA-
C5 (WP 0009, Figure 19) engine
oil pressure sensor harness con-
nector terminal 1 and terminal 3.
7. Using a digital multimeter, test for
No Continuity - Engine control wiring
continuity between Engine ECM
harness is open, replace engine
harness connector EA-C1 (WP
control wiring harness (WP 0080).
0009, Figure 3) terminal 47, and
Continuity - (Resistance should be
terminal 56.
less than 5.0 Ohms) - Proceed to
step 8.
8. Remove jumper wire from engine
oil pressure sensor harness con-
nector EA-C5 (WP 0009, Figure
19) terminal 1 and terminal 3.
9. Install a jumper wire between EA-
C5 (WP 0009, Figure 19) engine
oil pressure sensor harness con-
nector terminal 2 and terminal 3.
0011-85
Change 1
