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
2770-03 Throttle Hold
3. Using a digital multimeter, test for
Continuity - (Resistance should be
Resume/Decel Switch Volt-
continuity at the harness connec-
less than 5.0 Ohms) - ECM faulty,
age Above Normal - Contin-
tor FA-C17 (WP 0009, Figure 14)
replace Engine ECM (WP 0067).
ued
terminal 48 and terminal 49.
Remove jumper wire from PE-C9 (WP
There should be continuity.
0009, Figure 38) terminals 2 and 3.
Connect the RH joystick control
harness connector (WP 0283) PE-C9
(WP 0009, Figure 38) to the RH
joystick.
Remove jumper wire from PE-C8 (WP
0009, Figure 50) terminal 3 and
machine ground.
Connect the RH joystick control
harness connector PE-C8 (WP 0009,
Figure 50) to the RH joystick.
No Continuity - Cab lower wiring
harness is open, replace cab lower
wiring harness.
Connect connector FA-C17 (WP
0009, Figure 14) to Engine ECM
connector J1.
System Response:
2770-04 Throttle Hold
Resume/Decel Switch Volt-
A warning will appear on display on
age Below Normal
instrument panel. ECM logs diagnos-
tic code. Diagnostic codes can be
viewed on electronic service tool.
Possible Performance Effect:
"Throttle Hold" will be disabled by
ECM.
Change 1
0011-186