TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
12.
TRANSMISSION FAILS TO SHIFT OR SHIFTS ERRATICALLY.
Step 1.
Check VOLTMETER gauge (1).
If gauge (1) reads less than 20 Vdc, Go to Fault 36.
Step 2.
Check TRANSMISSION OIL PRESSURE gauge (2).
If gauge (2) reads less than 235 psi (1 620 kPa), check gauge for proper operation. Replace if
necessary (Para 12-23).
Step 3.
Check circuit breaker CB-18 in the Power Distribution Panel (PDP) (refer to FO-1).
If circuit breaker CB-18 is tripped, reset circuit breaker.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment and injury or death to personnel may occur.
Step 4.
Check for continuity on wire 360 from circuit breaker CB-18 to Electronic Gear Shift (EGS) (3) (refer to
FO-3).
If there is not continuity, replace wire harness (Para 12-27).
Change 1
