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Table 1. All-Wheel Drive (AWD) Code Troubleshooting - Continued.
Table 1. All-Wheel Drive (AWD) Code Troubleshooting - Continued.

Maintenance Manual For Motorized Road Grader Model 120M - 1
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TM 5-3805-293-23-1
0015
Table 1. All-Wheel Drive (AWD) Code Troubleshooting - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
2321-02 Right Front Drive
6. Perform Speed Sensor Test (WP
Motor Speeds Not OK, 2321-02
Motor Speed Sensor #1
0023) and verify motors speeds
Code Active - Repeat
Data Erratic, Intermittent or
are 920 50 rpm in forward and -
troubleshooting code from the
Incorrect - Continued
920 50 rpm in reverse.
beginning.
Motor Speeds OK and 2321-02
Code Not Active - Troubleshooting
complete.
Test Step 8. Test for Shorted
Clutch Drive Solenoid Harness.
1. Remove rear front frame cover
from machine (WP 0224).
2. Disconnect clutch drive solenoid
AF-C3 harness connector (WP
0009, Figure 51) from cab lower
wiring P-C34 harness connector
(WP 0009, Figure 52) (WP
0200).
3. Using a digital multimeter, test for
No Continuity - Proceed to step 4.
continuity between AF-C3 termi-
Continuity - Replace clutch drive
nal 9 and all other circuits in AF-
solenoid harness (WP 0200).
C3 (WP 0009, Figure 51). There
Connect AH-C2 (WP 0009, Figure
should be no continuity.
57) on right front drive motor speed
sensor connector (WP 0009, Figure
58) (WP 0166).
Proceed to step 5.
4. Using a digital multimeter, test for
No Continuity - Proceed to Test
continuity between AF-C3 termi-
Step 9.
nal 21 and all other circuits in AF-
Continuity - Replace clutch drive
C3 (WP 0009, Figure 51). There
solenoid harness (WP 0200).
should be no continuity.
Connect AH-C2 (WP 0009, Figure
57) on right front drive motor speed
sensor connector (WP 0009, Figure
58) (WP 0166).
Proceed to step 5.
Motor Speeds Not OK, 2321-02
5. Perform Speed Sensor Test (WP
Code Active - Repeat
0023) and verify motors speeds
troubleshooting code from the
are 920 50 rpm in forward and -
beginning.
920 50 rpm in reverse.
Motor Speeds OK and 2321-02
Code Not Active - Troubleshooting
complete.
0015-44


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