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Table 1. Implement Code (2146-02 to 2156-08) Troubleshooting Procedures - Continued.
Table 1. Implement Code (2146-02 to 2156-08) Troubleshooting Procedures - Continued.

Maintenance Manual For Motorized Road Grader Model 120M - 2
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TM 5-3805-293-23-2
0028
Table 1. Implement Code (2146-02 to 2156-08) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
2156-03 Circle Sideshift
5. Using digital multimeter, test for
Voltage Between 9.6 to 10.4 Volts -
Control Position Sensor
voltage between harness connec-
Proceed to Test Step 5.
Voltage Above Normal -
tor PE-C8 (WP 0009, Figure 50)
Voltage Out of Specifications of 9.6
Continued
terminal 6 and terminal 8 ground.
to 10.4 Volts - Proceed to Test Step 3.
Voltage should be between 9.6 to
10.4 volts.
Test Step 3. Test for Open Rear
Chassis Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position.
2. Disconnect the rear chassis wir-
ing harness connector FA-C20
(WP 0009, Figure 113) from trans-
mission ECM J1 (WP 0009, Fig-
ure 112).
3. Connect jumper wire between cab
lower wiring harness connector
PE-C8 (WP 0009, Figure 50) ter-
minal 6 and terminal 8.
4. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
for continuity between rear chas-
Replace implement 1 ECM (WP 0268)
sis wiring harness connector FA-
and transmission ECM (WP 0137).
C20 (WP 0009, Figure 113) termi-
Proceed to step 5.
nal 69 and terminal 70.
Resistance 5.0 Ohms or Greater -
Resistance should be less than
Proceed to Test Step 4.
5.0 ohms.
5. Using MSD (WP 0006), select
2156-03 Code Active - Repeat
Implement 120M ECM and verify
troubleshooting code from the
2156-03 is not active.
beginning.
2156-03 Code Not Active -
Troubleshooting complete.
Test Step 4. Test for Open Cab
Lower Wiring Harness.
1. Disconnect the rear chassis wir-
ing harness connector FA-C23
(WP 0009, Figure 17) from cab
lower wiring harness connector P-
C71 (WP 0009, Figure 18) (WP
0266).
0028-77


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