WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
P–16 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.
AUTOMATIC NEUTRAL
USES: Automatically shifts transmission to NEUTRAL when vehicle doors are opened. Re-engages transmission
in DRIVE when doors are closed.
VARIABLES TO SPECIFY: None
VOCATIONS: Transit bus
Figure P–16. Automatic Neutral
WARNING!
If this function is enabled in the shift calibration, the function MUST be
integrated 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.
DOOR
CONTROL
SWITCH
TO DOOR CONTROLS
WIRE 118
AUTOMATIC NEUTRAL
SWITCHED
POWER
Switch is closed when either front
or rear doors are opened.
Switch indicates actual position
of the door control lever.
Use of this function requires
approval by Allison Engineering
V05021
NOTE: When transmission has been automatically shifted to NEUTRAL with this
feature, DRIVE can be re-selected by either advancing the throttle, or by selecting
DRIVE at the shift selector.
2
ECU
VIW
CONNECTOR
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 cause unintended selection of range
or other unpredictable operation resulting 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.
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