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
0110-03 Engine Coolant
4. Disconnect the intake manifold
Temperature Sensor Voltage
temperature sensor EA-C8 (WP
Above Normal Code - Con-
0009, Figure 23 harness connec-
tinued
tor.
5. Using a digital multimeter, test
Continuity - (Resistance should be
continuity between EA-C1 (WP
less than 5.0 Ohms) - Proceed to
0009, Figure 3) terminal 37 and
step 6.
EA-C9 (WP 0009, Figure 20) ter-
No Continuity - Engine control wiring
minal 2.
harness is open, replace engine con-
trol wiring harness (WP 0080).
6. Using a digital multimeter, test
Continuity - (Resistance should be
continuity between EA-C1 (WP
less than 5.0 Ohms) - ECM faulty,
0009, Figure 3) terminal 37 and
replace Engine ECM (WP 0067).
EA-C8 (WP 0009, Figure 23 ter-
Connect the intake manifold tempera-
minal 2.
ture sensor EA-C8 (WP 0009, Figure
23) harness connector.
Connect the engine coolant tempera-
ture sensor EA-C9 (WP 0009, Figure
20) harness connector.
No Continuity - Engine control wiring
harness is open, replace engine con-
trol wiring harness (WP 0080).
0110-04 Engine Coolant
System Response:
Temperature Sensor Voltage
ECM will default to194F (90C)
Below Normal Code
for engine coolant temperature.
"Voltage Above Normal" will be
displayed next to status for
"Engine Coolant Temperature" on
electronic service tool.
Cooling fan will operate at maxi-
mum speed.
Warning light will be on and a
warning horn will sound. An active
diagnostic code will be generated
after 8 seconds. Diagnostic code
will be logged if engine has been
operating for more than 7 min-
utes.
Possible Performance Effect:
Poor engine stability
Poor cold running
Change 1