Multiplexing 207
To tap into the ECU, Labrie uses the following wires on the Allison connector:
Table 6 Allison wires to be enabled
Wires Wire # (WTEC IV)
Pack enable 117
Input
PTO enable 143
Output
PTO enable 130
Output neutral indicator – PTO 145
Auto-neutral pack enable (if present) 142
Table 7 Input
Wire # Description State
117 Pump pack enable Active when the brakes are used, and when the PTO and
auto-neutral switches are ON (ground signal).
143 PTO enable Active when the PTO switch is ON (+12 V signal).
142 Auto-neutral pack input Active when the brakes are used, and when the PTO and
auto-neutral switches are ON (ground signal).
Table 8 Output
Wire # Description State
130 PTO enable output Active when the PTO switch is ON and when all engine
and vehicle speed criteria are respected (+12 V signal).
See Programmed Parameters on page 206.
145 Neutral signal output Active when the transmission is in neutral. This signal
(ground signal) is used to allow the fast idle engagement.
For more details, refer to the electrical schematic
provided with the vehicle.