W T E C I I I E L E C T R O N I C C O N T R O L S T R O U B L E S H O O T I N G M A N U A L
APPENDIX C SOLENOID AND CLUTCH CHART
Indicates solenoid is electrically ON.
Indicates clutch is hydraulically applied.
Indicates solenoid is electrically OFF or clutch is not hydraulically applied.
Optional ON or OFF.
See NVL explanation below.
As a diagnostic response:
If Turbine Speed is below 150 rpm when Output Speed is below 100 rpm and Engine Speed is
above 400 rpm, Neutral Very Low (NVL) is commanded when N1 (Neutral) is the selected
range. NVL is achieved by turning D solenoid on in addition to E solenoid being on, which
locks the output. Otherwise, D solenoid is turned off in N1 (Neutral).