TM 5-2420-231-23-1
0051
Table 1. Transmission Does Not Shift into Forward - Continued.
051
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Transmission Does Not Shift
Test Step 5. Test Range Modulation
into Forward - Continued
Solenoid and Direction Modulation
Solenoid.
1. Place powershift lever in the neu-
tral position, turn ignition switch to
the off position (TM 5-2420-231-
10), and disconnect 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 F1. Resistance
0174).
should be 26 to 30 ohms.
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 30 Ohms -
Proceed to Test Step 6.
4. Using a digital multimeter, mea-
Resistance 26 to 30 Ohms - Proceed
sure resistance between power-
to step 5.
shift controller wiring harness
Resistance Less Than 26 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminals H1 and K1. Resistance
0174).
should be 26 to 30 ohms.
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 30 Ohms -
Proceed to Test Step 6.
5. Using a digital multimeter, mea-
Resistance 3.2 to 5.2 Ohms - Install
sure resistance between power-
instrument panel front cover (WP 0174).
shift controller wiring harness
Proceed to Test Step 38.
connector (WP 0007, Figure 20)
Resistance Less Than 3.2 Ohms -
terminals C1 and K1. Resistance
Install instrument panel front cover (WP
should be 3.2 to 5.2 ohms.
0174).
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 5.2 Ohms -
Proceed to Test Step 6.
Test Step 6. Test Solenoid Output
Control and Common Circuits.
1. Remove front floor cover plate
(WP 0306).
2. Disconnect powershift wiring har-
ness connector (WP 0007, Figure
146) from transmission (WP 0007,
Figure 147).
0051-9