TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Disconnect the powershift wiring
Transmission Does Not Shift
harness (WP 0007, Figure 146)
into Reverse - Continued
from the transmission (WP 0007,
Figure 147).
5. Using a digital multimeter, test for
Continuity - Install instrument panel
continuity between front console
front cover (WP 0174).
wiring harness connector (WP
Replace front console wiring harness
0007, Figure 5) terminal 4D and all
(WP 0162).
other terminals on harness. There
Proceed to Test Step 38.
should be no continuity.
No Continuity - Proceed to step 6.
6. Disconnect main chassis wiring
harness connector (WP 0007, Fig-
ure 101) from FWD/REV jumper
harness (WP 0007, Figure 102).
7. Using a digital multimeter, test for
Continuity - Install instrument panel
continuity between main chassis
front cover (WP 0174).
wiring harness connector (WP
Replace main chassis wiring harness
0007, Figure 6) terminal 4D and all
(WP 0154).
other terminals on harness. There
Proceed to Test Step 38.
should be no continuity.
No Continuity - Proceed to step 8.
8. Using a digital multimeter, test for
Continuity - Install instrument panel
continuity between powershift con-
front cover (WP 0174).
troller wiring harness connector
Replace powershift wiring harness (WP
(WP 0007, Figure 20) terminal C2
0167).
and all other terminals on harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Install instrument panel
front cover (WP 0174).
Replace transmission controller (WP
0168).
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 34. Test Reverse 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 reverse relay (WP 0007,
Figure 106) from front console wir-
ing harness connector (WP 0007,
Figure 105).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
0052-40