TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Using a digital multimeter, mea-
Transmission Does Not Shift
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 7.
into Reverse - Continued
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.
7. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 8.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal K1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal M. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
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 C1
0167).
and all other terminals on wiring
Proceed to Test Step 38.
harness connector. There should
No Continuity - Install instrument panel
be no continuity.
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 17. Test 2nd/1st Solenoid,
Range Modulation Solenoid, and
Direction Modulation 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).
3. Using a digital multimeter, mea-
Resistance 26 to 30 Ohms - Proceed
sure resistance between power-
to step 4.
shift controller wiring harness
Resistance Less Than 26 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminals B1 and D1. Monitor and
0174).
record resistance. Resistance
Replace transmission (WP 0213).
should be 26 to 30 ohms.
Proceed to Test Step 38.
Resistance Greater Than 30 Ohms -
Proceed to Test Step 18.
0052-20
