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
2770-04 Throttle Hold
2. Disconnect the RH joystick con-
Resume/Decel Switch Volt-
trol harness connector (WP 0283)
age Below Normal - Contin-
PE-C9 (WP 0009, Figure 38) from
ued
the right hand joy stick.
3. Disconnect the RH joystick con-
trol harness connector PE-C8
(WP 0009, Figure 50) from the
RH joystick.
4. Install a jumper wire between har-
ness connector PE-C8 (WP 0009,
Figure 50) terminal 3 and
machine ground.
5. Use a digital multimeter and test
Continuity - Replace RH joystick
for continuity on Throttle Resume/ (WP 0283).
Decel Switch (TM 5-3805-293-10) No Continuity - Proceed to step 4.
connector (WP 0009, Figure 49)
pin 2 and ground.
6. While the Throttle Resume/Decel
Continuity - Replace RH joystick
Switch is depressed, use a digital
(WP 0283).
multimeter to test for continuity on
No Continuity - Proceed to Test
Resume/Decel Switch (WP 0009,
Step 3.
Figure 49) connector pin 3 and
ground.
Test Step 3. Test Throttle Lock
Resume/Decel Cables for Short to
Ground.
1. Disconnect connector FA-C17
(WP 0009, Figure 14) from
Engine ECM connector J1.
2. Using a digital multimeter, test for
Continuity - Cab lower wiring
continuity at the harness connec-
harness is shorted to ground, replace
tor FA-C17 (WP 0009, Figure 14)
cab lower wiring harness (WP 0266).
terminal 48 and ground. There
Connect connector FA-C17 (WP
should be no continuity.
0009, Figure 14) to Engine ECM con-
nector J1.
No Continuity - Proceed to step 3.
0011-188