TM 5-2420-231-23-1
0051
Table 1. Transmission Does Not Shift into Forward - Continued.
051
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8. Using a digital multimeter, mea-
Resistance 26 to 30 Ohms - Proceed
Transmission Does Not Shift
sure resistance between power-
to step 9.
into Forward - Continued
shift controller wiring harness
Resistance Less Than 26 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminals J1 and B1. 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 20.
9. Remove front floor cover plate
(WP 0306).
10. Disconnect the powershift wiring
harness (WP 0007, Figure 146)
from the transmission (WP 0007,
Figure 147).
11. 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 harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Proceed to step 12.
12. 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 D1
0167).
and all other terminals on harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Proceed to step 13.
13. 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 E1
0167).
and all other terminals on harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Proceed to step 14.
14. 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 F1
0167).
and all other terminals on harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Proceed to step 15.
15. 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 all other terminals on harness.
Proceed to Test Step 38.
There should be no continuity.
No Continuity - Proceed to step 16.
0051-23