Table 3-6. Unit Troubleshooting Table. -- Continued
Test or Inspection
TRANSMISSION WILL NOT SHIFT INTO HIGH/LOW RANGE.
To perform this troubleshooting, the ignition switch must be in the IGN position, the EGS must be in
the N (Neutral) position, and the air system must be fully pressurized.
Check high/low shift cylinder (1) for bent control rod.
If control rod on high/low shift cylinder (1) is bent, replace control rod (Para 4-18).
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
Check high-range relay in PDP box for proper operation (refer to FO-1).
If high-range relay is not operating properly, replace relay (Para 12-15).
Check RANGE SHIFT switch (2) for proper operation and ensure LED indicator (2.1) illuminates.
If RANGE SHIFT switch (2) is not operating properly, replace RANGE SHIFT switch (Para 12-14).
If LED indicator (2.1) does not illuminate, replace valve island (Para 12-34.1).