APPENDIX H -- INPUT/OUTPUT FUNCTIONS - TM-9-2320-303-24-10347

WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL

APPENDIX H -- INPUT/OUTPUT FUNCTIONS

These schematics show the intended use of the specified controls features which

have been validated in the configuration shown. Any miswiring or use of these

features which differs from that shown could result in damage to equipment or

WARNING!

property, personal injury, or loss of life. ALLISON TRANSMISSION IS NOT

LIABLE FOR THE CONSEQUENCES ASSOCIATED WITH MISWIRING

OR UNINTENDED USE OF THESE FEATURES.

D. SHIFT SELECTOR TRANSITION

USES: When two shift selectors are used, to select which one is active.

VARIABLES TO SPECIFY: None

VOCATIONS: Various

If this function is enabled in the shift calibration, the function MUST be integrated

WARNING!

into the vehicle wiring. If the function is available in the shift calibration but will

not be used in the vehicle, it MUST be disabled in the calibration.

OPTIONAL

CUSTOMER-FURNISHED

WIRE 155

VIW CONNECTOR(S)

SHIFT SELECTOR

When ECU is turned on,

DASH SWITCH

TRANSITION

active shift selector is

V-11

Open: Selector 1

determined by current

Closed: Selector 2

WIRE 161

switch position.

V V-31

SIGNAL RETURN

SELECTOR

Display of the inactive selector is disabled.

ECU

SELECT

To switch between selector 1

and selector 2, transmission

MODE

must be in neutral and output

speed below 60 rpm.

For Shift Selector

wiring requirements,

see installation

drawing AS07-27

(see SA 2978 WTEC III Controls and General Information)

V04860

Figure H3. Shift Selector Transition

0021 00175