Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
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
1. Remove rear bulkhead
connection cover plate (WP
Figure 17) harness connector
Figure 15) harness connector
4. Install a jumper wire between
throttle position sensor P-C23
connector terminal B and C.
sure continuity between P-C71
less than 5.0 Ohms) - Cab lower har-
ness is good, replace rear chassis wir-
connector terminal 8 and P-C70
ing harness (WP 0189).
Remove jumper between throttle posi-
connector terminal 6. There
should be good continuity.
13) harness connector terminal B and
harness connector to the throttle posi-
Install pedal assembly cover (WP
ness is open, replace cab lower wiring
harness (WP 0266).