Allison B 400 - Quick-To-Neutral Pump

Copyright © 1998 General Motors Corp. P–13
WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
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.
QUICK-TO-NEUTRAL PUMP
USES: Automatically shifts transmission to NEUTRAL when pumped medium approaches excessive pressure
levels.
VARIABLES TO SPECIFY: None
VOCATIONS: Oil field pumping
Figure P–13. Quick-To-Neutral Pump
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.
WIRE 119
QUICK-TO-NEUTRAL
PUMP
SWITCHED
POWER
PUMP
PRESSURE
V05018
Switch opens when pump pressure reaches
excessive levels.
To re-engage transmission, neutral must be
selected before selecting drive.
This function is active only in secondary mode.
•
•
•
NOTE: This function must NOT be used when the
transmission is used for propulsion.
3
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.