TM 5-2420-231-23-1
0052
Table 1. Transmission Does Not Shift into Reverse - Continued.
052
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Transmission Does Not Shift
Test Step 5. Test Reverse Solenoid,
into Reverse - Continued
Range Modulation Solenoid, and
Direction Modulation 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)
Replace transmission (WP 0213).
terminals B1 and G1. Monitor and
Proceed to Test Step 38.
record resistance. Resistance
Resistance Greater Than 30 Ohms -
should be 26 to 30 ohms.
Proceed to Test Step 6.
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)
Replace transmission (WP 0213).
terminals H1 and K1. Monitor and
Proceed to Test Step 38.
record resistance. Resistance
Resistance Greater Than 30 Ohms -
should be 26 to 30 ohms.
Proceed to Test Step 6.
5. Using a digital multimeter, mea-
Resistance 3.2 to 5.2 Ohms - Replace
sure resistance between power-
transmission controller (WP 0168).
shift controller wiring harness
Proceed to Test Step 38.
connector (WP 0007, Figure 20)
Resistance Less Than 3.2 Ohms -
terminals C1 and K1. Monitor and
Replace transmission (WP 0213).
record resistance. Resistance
Proceed to Test Step 38.
should be 3.2 to 5.2 ohms.
Resistance Greater Than 5.2 Ohms -
Proceed to Test Step 6.
Test Step 6. 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.
0052-10
