TM 5-2420-231-23-1
0051
Table 1. Transmission Does Not Shift into Forward - Continued.
051
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 Forward - Continued
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal G1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal F. 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 J1 and powershift wiring
0174).
harness connector terminal E (WP
Replace powershift wiring harness (WP
0007, Figure 146). Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
8. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 9.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal F1 and powershift wiring
0174).
harness connector terminal C (WP
Replace powershift wiring harness (WP
0007, Figure 146). Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
9. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less - 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).
terminal B1 and powershift wiring
Connect powershift wiring harness
harness connector (WP 0007, Fig-
connector (WP 0007, Figure 146) to
ure 146) terminal H. Resistance
transmission (WP 0007, Figure 147).
should be 5.0 ohms or less.
Install front floor cover plate (WP 0306).
Proceed to Test Step 38.
Resistance Greater Than 5.0 Ohms -
Install instrument panel front cover (WP
0174).
Replace powershift wiring harness (WP
0167).
Proceed to Test Step 38.
Test Step 21. Test Modulation
Control Solenoids and Control
Circuits for a Short.
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).
0051-25
