TM 9-2320-302-20
0011 00-3
Table 1. Transmission and Driveline Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Transmission Shifting - Continued
7. Transmission Will Not Make a Specific Shift. 1. Low engine power.
Correct engine problem (WP
0006 00).
2. Incorrect
transmission
fluid
level.
Correct fluid level (TM 9-2320-
302-10).
3. Extreme
transmission
fluid
temperature.
Inspect cooling system and fluid
level (WP 0006 00).
4. Faulty shift selector.
Replace shift selector (WP
0120 00).
5. Faulty ECU.
Replace ECU (WP 0124 00).
Notify
Direct
Support
Maintenance.
8. Transmission Does Not Shift Properly (Rough
Shifts, Shifts Occurring at Too Low or Too
High Speed).
1. Engine idle speed too fast
(neutral to range shift).
Adjust engine idle speed (WP
0006 00).
2. ECU input voltage low.
Check power, ground, charging
system, and battery function (WP
0010 00).
3. Incorrect
transmission
fluid
level
Correct fluid level (TM 9-2320-
302-10).
4. Intermittent problems.
Check
wiring
harnesses
and
connectors (WP 0119 00). Notify
Direct Support Maintenance.
Abnormal Activities or Responses from Transmission
1. Excessive Creep in First and Reverse Gears.
Engine idle speed too high.
Adjust to correct idle speed
between 500-800 RPM (WP
0006 00).
2. No Response to Shift Selector.
1. Shift
selector
not
properly
connected.
Check shift selector response with
diagnostic tool. If no response,
check remote connection and
replace if necessary (WP
0120 00).
2. Faulty shift selector.
Replace shift selector (WP
0120 00).
3. Incorrect
transmission
fluid
level.
Correct fluid level (TM 9-2320-
302-10).
3. Vehicle Moves Forward in Neutral.
C1 clutch failed or not released.
Notify
Direct
Support
Maintenance.
4. Vehicle Moves Backward in Neutral.
C3 clutch failed or not released.
Notify
Direct
Support
Maintenance.
5. Engine Overspeed on Full-throttle Upshifts.
1. TPS adjustment:
- Overstroke
Adjust TPS (WP 0006 00).
