Allison B 300 - Auxiliary Hold

WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
P–8 Copyright © 1998 General Motors Corp.
APPENDIX P — INPUT/OUTPUT FUNCTIONS
WARNING!
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
property, personal injury, or loss of life. ALLISON TRANSMISSION IS NOT
LIABLE FOR THE CONSEQUENCES ASSOCIATED WITH MISWIRING
OR UNINTENDED USE OF THESE FEATURES.
AUXILIARY HOLD
USES: Provide a discrete input to hold the transmission in present range.
VARIABLES TO SPECIFY: None
VOCATIONS: Various
Figure P–8. Auxiliary Hold
MOMENTARY
SWITCH
V05013
Function is activated when
switch is depressed.
Function is de-activated when
switch is released.
NOTE: Transmission will continue to operate with
normal downshift schedule when function is active.
WIRE 161B
SIGNAL GROUND
WIRE 153
AUXILIARY HOLD
ECU
VIW
CONNECTOR
13
8