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/
2. Using a digital multimeter, test for
Continuity - (Resistance should be
Accel Switch Above Normal
continuity at the harness connec-
less than 5.0 Ohms) - Rear chassis
- Continued
tor P-C71 (WP 0009, Figure 18)
wiring harness is open. Replace rear
terminal 9 and terminal 10. There
chassis wiring harness (WP 0189).
should be continuity.
Remove jumper wire between har-
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
step 3.
3. Disconnect harness connector R-
C1 (WP 0009, Figure 33) from
harness connector P-C3 (WP
0009, Figure 34).
4. Using a digital multimeter, test for
Continuity - (Resistance should be
continuity at the harness connec-
less than 5.0 Ohms) - Cab lower
tor R-C1 (WP 0009, Figure 33)
wiring harness ground connection is
terminal 48 and terminal 54.
open. Replace cab lower wiring
There should be continuity.
harness (WP 0266).
Connect connector FA-C17 (WP
0009, Figure 14) to Engine ECM con-
nector J1.
Remove jumper wire between har-
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
step 5.
5. Disconnect harness connector A-
C1 (WP 0009, Figure 31) from
harness connector R-C2 (WP
0009, Figure 32).
Change 1
0011-194
