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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
2319-02 Left Front Drive
3. Disconnect clutch drive solenoid
Motor Speed Sensor #1
AF-C2 harness connector (WP
Data Erratic, Intermittent or
0009, Figure 63) from left motor
Incorrect - Continued
speed AK-C1 harness connector
(WP 0009, Figure 64).
4. Using a digital multimeter, test for
No Continuity - Proceed to step 5.
continuity between AK-C1 termi-
Continuity - Replace left motor
nal 3 and all other circuits in AK-
speed harness (WP 0202).
C1 (WP 0009, Figure 64). There
Proceed to step 6.
should be no continuity.
5. Using a digital multimeter, test for
No Continuity - Proceed to Test
continuity between AK-C1 termi-
Step 12.
nal 3 (WP 0009, Figure 64) and
Continuity - Replace left motor
ground. There should be no con-
speed harness (WP 0202).
tinuity.
Proceed to step 6.
Motor Speeds Not OK, 2319-02
6. 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 2319-02
Code Not Active - Troubleshooting
complete.
Test Step 12. 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 11 and all other circuits in AF-
solenoid harness (WP 0200).
C3 (WP 0009, Figure 51). There
Connect AK-C2 (WP 0009, Figure
should be no continuity.
59) on left front drive motor speed
sensor connector (WP 0009, Figure
60) (WP 0166).
Proceed to step 5.
0015-12


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