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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
No Continuity - Proceed to step 5.
2320-02 Left Front Drive
4. Using a digital multimeter, test for
Motor Speed Sensor #2
continuity between P-C35 termi-
Continuity - Replace cab lower wir-
Data Erratic, Intermittent or
nal 9 (WP 0009, Figure 53) and
ing harness (WP 0266).
Incorrect - Continued
all circuits in P-C37 (WP 0009,
Connect AF-C2 (WP 0009, Figure
Figure 55). There should be no
63) on AK-C1 (WP 0009, Figure 64).
continuity.
Install nose front frame cover and
rear front frame cover on machine
(WP 0224).
Connect AK-C2 (WP 0009, Figure
59) on left front drive motor speed
sensor connector (WP 0009, Figure
60) (WP 0166).
Proceed to step 6.
5. Using a digital multimeter, test for
No Continuity - Proceed to Test
Step 14.
continuity between P-C35 termi-
nal 9 (WP 0009, Figure 53) and
Continuity - Replace cab lower wir-
ground. There should be no con-
ing harness (WP 0266).
tinuity.
Connect AF-C2 (WP 0009, Figure
63) on AK-C1 (WP 0009, Figure 64).
Install nose front frame cover and
rear front frame cover on machine
(WP 0224).
Connect AK-C2 (WP 0009, Figure
59) on left front drive motor speed
sensor connector (WP 0009, Figure
60) (WP 0166).
Proceed to step 6.
6. Perform Speed Sensor Test (WP
Motor Speeds Not OK, 2320-02
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 2320-02
Code Not Active - Troubleshooting
complete.
Test Step 14. Test for Short to
Implement 1 Circuits in Cab Lower
Wiring Harness.
1. Disconnect cab lower wiring P-
C41 harness connector (WP
0009, Figure 68) from Implement
1 ECM J1 (WP 0009, Figure 69)
(WP 0265).
0015-32


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