TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Disconnect powershift wiring har-
Transmission Does Not Shift
ness connector (WP 0007, Figure
into Reverse - Continued
146) from transmission (WP 0007,
Figure 147).
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 4.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal G1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal F. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
4. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 5.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal J1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal E. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
5. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 6.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal B1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal H. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
6. 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 G1
0167).
and machine ground. There should
Proceed to Test Step 38.
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 11. Test Reverse Solenoid
and 2nd/1st Solenoid.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove instrument panel front
cover (WP 0174).
0052-14
