WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL GENERAL DESCRIPTION DISPLAY DISPLAY MODE ID MODE INDICATOR (LED) MODE ID R N D R N MODE MODE INDICATOR (LED) R N MODE 2 1 3 D N R D MODE BUTTON D MODE BUTTON STRIP PUSHBUTTON SHIFT SELECTORS CONTOURED VERSION REGULAR COMPACT PUSHBUTTON SELECTORS V07178 Figure 1–4. Pushbutton Shift Selectors B. Lever Shift Selector (Figure 1–5) The lever shift selector can have as many as six forward range positions (seven for the MD 3070PT and HD 4070/4076), as well as R (Reverse) and N (Neutral). There is a hold override button which must be pressed and held in order to move between certain selector positions.
The hold override button must be pressed when shifting between R , N, and D . The hold override button is released when the desired selector position is reached. The selector lever can be moved freely between D and the numbered forward ranges without pressing the hold override button. The lever selector can be chosen with the lever on the left side or on the right side and with the R (Reverse) position toward the front or toward the rear of the selector. Diagnostic and oil level (if sensor is present) information is obtained from the single digit LED display by pressing the “display mode” button.
HOLD OVERRIDE BUTTON HOLD OVERRIDE BUTTON MODE INDICATOR (LED) MODE INDICATOR (LED) 2 1 MODE R MODE N MODE N R 4 3 MODE BUTTON D 5 MODE BUTTON D 4 5 N D 5 MODE ID 2 3 4 MODE ID 1 2 3 R DISPLAY MODE/ DIAGNOSTIC BUTTON DIGITAL DISPLAY 1 DISPLAY MODE/ DIAGNOSTIC BUTTON DIGITAL DISPLAY SIX-SPEED, LEFT-HAND LEVER SELECTOR WITH REVERSE TO REAR SIX-SPEED, RIGHT-HAND LEVER SELECTOR WITH REVERSE TO FRONT CONTOURED VERSION V07177 Figure 1–5. Typical Lever Shift Selector Copyright © 2001 General Motors Corp.