TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using a digital multimeter, mea-
Resistance 26 to 30 Ohms - Proceed
Transmission Does Not Shift
sure resistance between power-
to step 5.
into Reverse - Continued
shift controller wiring harness
Resistance Less Than 26 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminals H1 and K1. 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 18.
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
Replace transmission controller (WP
connector (WP 0007, Figure 20)
0168).
terminals C1 and K1. Monitor and
Proceed to Test Step 38.
record resistance. Resistance
Resistance Less Than 3.2 Ohms -
should be 3.2 to 5.2 ohms.
Install instrument panel front cover (WP
0174).
Replace transmission (WP 0213).
Proceed to Test Step 38.
Resistance Greater Than 5.2 Ohms -
Proceed to Test Step 18.
Test Step 18. 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).
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)
Install instrument panel front cover (WP
terminal C1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal G. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
4. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 5.
shift controller wiring harness
Resistance Greater Than 5.0 Ohms -
connector (WP 0007, Figure 20)
Install instrument panel front cover (WP
terminal D1 and powershift wiring
0174).
harness connector (WP 0007, Fig-
Replace powershift wiring harness (WP
ure 146) terminal D. Resistance
0167).
should be 5.0 ohms or less.
Proceed to Test Step 38.
0052-21