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
0100-03 Engine Oil Pres-
12. Disconnect Engine ECM harness
sure Sensor Voltage Above
connector EA-C1 (WP 0009, Fig-
Normal - Continued
ure 3) from Engine ECM J2.
13. Using a digital multimeter, test for
Continuity - Engine control wiring
continuity between engine oil
harness is shorted, replace engine
pressure sensor harness connec-
control wiring harness (WP 0080).
tor EA-C5 (WP 0009, Figure 19)
No Continuity - Proceed to step 14.
terminal 3, and all other EA-C5
terminals.
There should be no continuity.
14. Install a jumper wire between
engine oil pressure sensor har-
ness connector EA-C5 (WP 0009,
Figure 19) terminal 3 and terminal
2.
No Continuity - Engine control wiring
15. Using a digital multimeter, test for
harness is open, replace engine
continuity between Engine ECM
control wiring harness (WP 0080).
harness connector EA-C1 (WP
0009, Figure 3) terminal 56, and
Continuity - (Resistance should be
terminal 39.
less than 5.0 Ohms) - ECM faulty,
replace Engine ECM (WP 0067).
There should be good continuity.
Remove jumper wire from EA-C5 (WP
0009, Figure 19) terminal 3 and termi-
nal 2.
Connect the engine oil pressure sen-
sor EA-C5 (WP 0009, Figure 19) har-
ness connector.
Test Step 2. Test Return Circuit.
1. Turn the ignition switch and
battery disconnect switch to the
OFF position.
2. Disconnect Engine ECM harness
connector EA-C1 (WP 0009, Fig-
ure 3).
3. Using a digital multimeter, test for
No Continuity - Engine control wiring
harness is open, replace harness
continuity at Engine ECM harness
(WP 0080).
connector EA-C1 (WP 0009, Fig-
ure 3) terminal 39, and terminal
Continuity - (Resistance should be
56.
less than 5.0 Ohms) - ECM faulty,
replace Engine ECM (WP 0067).
There should be good continuity.
Remove jumper wire from EA-C5 (WP
0009, Figure 19) terminal 3 and termi-
nal 2.
Connect the engine oil pressure sen-
sor EA-C5 (WP 0009, Figure 19) har-
ness connector.
Change 1
0011-80
