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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
Test Step 6. Test Left Front Drive
Motor Speed Sensor #1
Motor Speed Sensor #1 Circuit
Data Erratic, Intermittent or
and 8-Volt Return Circuit For Short
Incorrect - Continued
to Voltage.
1. Turn ignition switch and battery
disconnect switch to the OFF
position.
2. Remove jumper wire from AK-C2
terminal 1 and terminal 2 (WP
0009, Figure 59).
3. Turn battery disconnect switch
and ignition switch to the ON
position.
4. Using a digital multimeter, mea-
Voltage Greater Than 0.3 Volts -
sure voltage of circuit J717-BU
Proceed to step 5.
between AK-C2 terminal 3 (WP
Voltage 0.3 Volts or Lower - Pro-
0009, Figure 59) and ground.
ceed to Test Step 11.
5. Using a digital multimeter, mea-
Voltage Greater Than 0.3 Volts -
sure voltage between AK-C2 ter-
Proceed to Test Step 7.
minal 2 (WP 0009, Figure 59)
Voltage 0.3 Volts or Lower - Pro-
and ground.
ceed to Test Step 11.
Test Step 7. Test for Shorted Left
Motor Speed Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position.
2. Remove nose front frame cover
from machine (WP 0224).
3. Disconnect clutch drive solenoid
AF-C2 harness connector (WP
0009, Figure 63) from left motor
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 8.
nal 2 and all other circuits in AK-
Continuity - Replace left motor
C1 (WP 0009, Figure 64). There
speed harness (WP 0202).
should be no continuity.
Proceed to step 6.
0015-7


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