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
2771-03 Throttle Hold Set/
Test Step 3. Test Throttle Hold Set/
Accel Switch Above Normal
Accel Switch Cables for Continuity.
- Continued
1. Using a digital multimeter, test for
Continuity- Proceed to step 2.
continuity at the harness
No Continuity - Proceed to Test
connector A-C11 (WP 0009,
Step 4.
Figure 41) terminal 2 and ground.
There should be continuity.
2. Install a jumper wire between har-
ness connector A-C11 (WP 0009,
Figure 41) terminals 1 and 3.
3. Disconnect connector FA-C17
(WP 0009, Figure 14) from
Engine ECM connector J1.
4. Using a digital multimeter, test for
Continuity - (Resistance should be
continuity at the harness connec-
less than 5.0 Ohms) - ECM faulty,
tor FA-C17 (WP 0009, Figure 14)
replace Engine ECM (WP 0067).
terminal 47 and terminal 46.
Remove jumper wire between har-
There should be continuity.
ness connector A-C11 (WP 0009, Fig-
ure 41) terminals 1 and 3.
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).
No Continuity - Cables from throttle
hold set/accel switch open, proceed to
Test Step 5.
Test Step 4. Isolate Open Ground
on Throttle Hold Set/Accel Switch
Cables.
1. Install a jumper wire between
harness connector A-C11 (WP
0009, Figure 41) terminals 1 and
2.
2. Disconnect harness connector P-
C71 (WP 0009, Figure 18) from
harness connector FA-C23 (WP
0009, Figure 17).
0011-191
Change 1