TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
Transmission Does Not Shift
sure voltage between powershift
Test Step 30.
into Reverse - Continued
controller wiring harness connec-
No Voltage - Proceed to step 8.
tor (WP 0007, Figure 20) terminal
C2 and machine ground. Monitor
and record voltage. There should
be no voltage present.
8. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
sure voltage between powershift
Test Step 34.
controller wiring harness connec-
No Voltage - Install instrument panel
tor (WP 0007, Figure 20) terminal
front cover (WP 0174).
D2 and machine ground. Monitor
Replace transmission controller (WP
and record voltage. There should
0168).
be no voltage present.
Connect powershift wiring harness
connector (WP 0007, Figure 146) to
transmission (WP 0007, Figure 147).
Install front floor cover plate (WP 0306).
Proceed to Test Step 38.
Test Step 30. Test Forward Relay Coil
Voltage Supply Circuit for Voltage.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove forward relay (WP 0007,
Figure 186) from front console wir-
ing harness connector (WP 0007,
Figure 185).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
sure voltage between front console
Test Step 31.
wiring harness connector (WP
No Voltage - Proceed to Test Step 33.
0007, Figure 185) terminal 85 and
machine ground. There should be
no voltage.
Test Step 31. Test Shift Lever
Forward Voltage Supply Circuit for
Voltage.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect powershift controller
wiring harness connector (WP
0007, Figure 21) from powershift
lever (WP 0007, Figure 114).
0052-38