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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. Check for Active code 0041-04 in
Code 0041-04 Does Not Become
Active - Proceed to Test Step 2.
Motor Speed Sensor #1
All Wheel Drive 120M ECM (WP
Data Erratic, Intermittent or
0006).
Code 0041-04 Becomes Active -
Incorrect - Continued
Proceed to Test Step 6.
Test Step 2. Test for Open Right
Motor Speed Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position.
2. Remove jumper wire from AH-C2
terminal 1 and terminal 2 (WP
0009, Figure 57).
3. Remove nose front frame cover
from machine (WP 0224).
4. Disconnect clutch drive solenoid
AF-C1 harness connector (WP
0009, Figure 61) from right motor
speed AH-C1 harness connec-
tor (WP 0009, Figure 62).
5. Connect jumper wire between
AF-C1 terminal 1 and AF-C1 ter-
minal 2 (WP 0009, Figure 61).
6. Turn battery disconnect switch
and ignition switch to the ON
position.
7. Check for Active code 0041-04 in
Code 0041-04 Does Not Become
Active - Proceed to Test Step 3.
All Wheel Drive 120M ECM (WP
0006).
Code 0041-04 Becomes Active -
Remove jumper wire from AF-C1 ter-
minal 1 and terminal 2 (WP 0009,
Figure 61).
Replace right motor speed harness
(WP 0202).
Proceed to step 8.
8. Perform Speed Sensor Test (WP
Motor Speeds Not OK, 2321-02
0023) and verify motors speeds
Code Active - Repeat
are 920 50 rpm in forward and -
troubleshooting code from the
920 50 rpm in reverse.
beginning.
Motor Speeds OK and 2321-02
Code Not Active - Troubleshooting
complete.
0015-39


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