APPENDIX H -- INPUT/OUTPUT FUNCTIONS - TM-9-2320-303-24-10345

WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL

APPENDIX H -- INPUT/OUTPUT FUNCTIONS

The schematics which follow were taken from the Sales Tech Data Book entitled "WTEC III Controls." These

schematics provide detail infoheseiocheeededctoscorw ctly pnrfordednuue andthe tspecifnedon norolecfeons.res which

Trmat s n n mati s ho re the i eten m i ps t of ou put fu i cti co ct nn s ti atu

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!

properschemrstocs shnw rh,eor tlended use.oALLIspecifTRAontrols feIOures whOT

These ty, pe a i nal ioju ty in oss of life f the SON ied c NSMISS at N IS N ich

Lave beEnFORdTtHd in ONSEnfUEraCEn sASwO.CIAy EDswiriTHoMuSe oIfRINse

h IABL e vali a e E Cthe co QiguN tio S hoS n AnT mi WI ng r I sW theG

OaturNs NTENDEfers SromFhaHshoE n Eould Result in damage to equipment or

feR U e I which difD U f E O t T t ES wF cATU r ES.

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.

A. SECONDARY SHIFT SCHEDULE

USES: Provides operator selection of dual shift schedules. Can be used for performance/economy,

loaded/empty, or other shift schedule combinations.

VARIABLES TO SPECIFY: None

VOCATIONS: Various

WIRE 153 OR WIRE 177

SECONDARY

DASH SWITCH

SHIFT SCHEDULE

V-12

Open: PRIMARY

(usually "PERFORMANCE")

WIRE 161

V V-31

Closed: SECONDARY

SIGNAL RETURN

(usually "ECONOMY")

OPTIONAL

CUSTOMER-FURNISHED

VIW CONNECTOR(S)

This function may be

ECU

NOTE: The shift schedule identified as

activated by either the

"secondary" is activated when the switch is

"MODE" button or by

closed or the MODE button is selected.

SELECT

the external circuit.

If this function is on the MODE button, the

MODE

primary mode will always be selected when

the ECU is powered up.

For Shift Selector

wiring requirements,

If this function is controlled by a dash switch,

see installation

the selection of primary/secondary mode is

drawing AS07-27

determined, at all times, by the position of

(see SA 2978 WTEC III Controls and General Information)

the dash switch.

V04856.01

Figure H1. Secondary Shift Schedule

0021 00173