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
0091 08 Throttle Position
Test Step 3. Test Signal Circuit.
Sensor Abnormal Fre-
N OT E
quency, Pulse Width, or
Period - Continued
Harness connector is located behind cab bulkhead cover on right rear
of cab.
1. Remove rear bulkhead
connection cover plate (WP
0266).
2. Disconnect FA-C23 (WP 0009,
Figure 17) harness connector
from P-C71 (WP 0009, Figure 18)
harness connector.
3. Disconnect FA-C35 (WP 0009,
Figure 15) harness connector
from P-C70 (WP 0009, Figure 16)
harness connector.
4. Install a jumper wire between
throttle position sensor P-C23
(WP 0009, Figure 13) harness
connector terminal B and C.
5. Using a digital multimeter, mea-
Continuity - (Resistance should be
sure continuity between P-C71
less than 5.0 Ohms) - Cab lower har-
(WP 0009, Figure 18) harness
ness is good, replace rear chassis wir-
connector terminal 8 and P-C70
ing harness (WP 0189).
(WP 0009, Figure 16) harness
Remove jumper between throttle posi-
connector terminal 6. There
tion sensor P-C23 (WP 0009, Figure
should be good continuity.
13) harness connector terminal B and
C.
Connect P-C23 (WP 0009, Figure 13)
harness connector to the throttle posi-
tion sensor.
Install pedal assembly cover (WP
0288).
No Continuity - Cab lower wiring har-
ness is open, replace cab lower wiring
harness (WP 0266).
0011-77
Change 1
