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 7. Test Forward Solenoid
into Forward - Continued
and Low/High 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 F1. 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 8.
4. Using a digital multimeter, mea-
Resistance 26 to 30 Ohms - Install
sure resistance between power-
instrument panel front cover (WP 0174).
shift controller wiring harness
Replace transmission controller (WP
connector (WP 0007, Figure 20)
0168).
terminals B1 and E1. Monitor and
Proceed to Test Step 38.
record resistance. Resistance
Resistance Less Than 26 Ohms -
should be 26 to 30 ohms.
Install instrument panel front cover (WP
0174).
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 30 Ohms -
Proceed to Test Step 8.
Test Step 8. Test Solenoid Output
Control and Ground Circuit.
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).
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)
Replace powershift wiring harness (WP
terminal F1 and powershift wiring
0167).
harness connector (WP 0007, Fig-
Proceed to Test Step 38.
ure 146) terminal C. Resistance
should be 5.0 ohms or less.
0051-11
