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
2771-04 Throttle Hold Set/
No Continuity - Cab upper wiring
Accel Switch Voltage Below
harness ground connection is shorted.
Normal - Continued
Replace cab upper wiring harness
(WP 0265).
Connect the control switch panel har-
ness connector A-C11 (WP 0009, Fig-
ure 41) to throttle hold set/accel
switch.
Install control switch panel (WP 0275).
Connect harness connector P-C71
(WP 0009, Figure 18) to harness
connector FA-C23 (WP 0009, Figure
17).
Install rear bulkhead cover plate (WP
0009, Figure 14) to Engine ECM con-
nector J1.
Connect connector FA-C17 (WP
0009, Figure 14) to Engine ECM con-
nector J1.
N OT E
E172-1 Event Codes High
Air Filter Restriction
This code is generated only when the engine has been running for 3
minutes, and restricted air flow has been detected. This code will be
reset when the ignition switch is turned to the OFF position.
System Response:
E172-1 A warning will appear on
instrument panel.
Possible Performance Effect:
None.
1. Using the Messenger (WP 0005),
Event Code E172-1 Present - To to
verify presence of event code
step 2.
E172-1.
2. Inspect air inlet system for dam-
Air Inlet System is Blocked or Dirty
age, blockage, and cleanliness
- Clean and remove blockage from air
(WP 0037).
inlet system components (WP 0037).
0011-200