TM 5-2420-231-23-1
0051
Table 1. Transmission Does Not Shift into Forward - Continued.
051
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Using a digital multimeter, mea-
Resistance 3.2 to 5.2 Ohms - Proceed
Transmission Does Not Shift
sure resistance between power-
to step 4.
into Forward - Continued
shift wiring harness connector (WP
Resistance Less Than 3.2 Ohms -
0007, Figure 146) terminals C1
Install instrument panel front cover (WP
and K1. Resistance should be 3.2
0174).
to 5.2 ohms.
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 5.2 Ohms -
Proceed to Test Step 22.
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 22.
5. Remove front floor cover plate
(WP 0306).
6. Disconnect powershift wiring har-
ness connector (WP 0007, Figure
146) from transmission (WP 0007,
Figure 147).
7. 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).
all other terminals on wiring har-
Proceed to Test Step 38.
ness connector, and machine
No Continuity - Proceed to step 8.
ground. There should be no conti-
nuity.
8. Using a digital multimeter, test for
Continuity - Install instrument panel
continuity between powershift wir-
front cover (WP 0174).
ing harness connector (WP 0007,
Replace powershift wiring harness (WP
Figure 146) terminal H1 and
0167).
machine ground. There should be
Proceed to Test Step 38.
no continuity.
No Continuity - Install instrument panel
front cover (WP 0174).
Replace transmission (WP 0213).
Proceed to Test Step 38.
Test Step 22. Test Modulation
Solenoid Voltage Supply Circuit for
an Open or Short.
1. Remove front floor cover plate
(WP 0306).
0051-26