Allison B 400 - Automatic Neutral for PTO

WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
P–14 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 FOR PTO (STANDARD)
USES: Provides for automatic selection of NEUTRAL when PTO is operated regardless of range selected.
Requires re-selecting range to shift out of NEUTRAL
VARIABLES TO SPECIFY: Maximum output speed for activating this function.
VOCATIONS: Various (with usage of PTO)
Figure P–14. Automatic Neutral for PTO (Standard)
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.
A2
NC
COM
VIM
DASH
SWITCH
WIRE 161B
SIGNAL GROUND
WIRE 117
AUTOMATIC
NEUTRAL FOR
PTO (STD)
WIRE 114
RANGE INDICATOR (NEUTRAL)
Relay shown de-energized
SWITCHED
POWER
DASH
LIGHT
PTO
PRESSURE
SWITCH
PTO
NO
A3
V05019
13
16
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.