Iveco EUROCARGO, Instructions Manual

Page: 175 / 226

EUROCARGO Euro 6
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ELECTRONIC SUB-SYSTEMS
ELECTRONIC SUB-SYSTEMS
5.2 BODYBUILDER CONNECTORS
15
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Printed 603.95.747
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1st Ed. - Base 12/2013
Basic functions of connector 72074 (Allison Automatic transmission)
Pin Description
Wire
code
Max.
Load
Connected to Remarks
1
Neutral indicator for
Extra PTO
145 500 mA ALL 45
Gearbox in neutral.
Ground for neutral engaged.
This output function is activated by the TCM when Neutral is
attained and a programmable combination of engine speed and
transmission output speed has been detected.
2 Multi-state switch 123 15 mA ALL 23
Limitation 1 st gear and inhibition reverse gear
Open wire = function active
+24V = function not engaged
Ground = function active
This function is normally enabled with an operator-controlled
momentary switch.
When the function is enabled, the transmission is limited to opera-
tion in only Neutral and (selectable*) low forward range(s).
Operator requests to upshift beyond the maximum* gear range or
to shift into Reverse are ignored by the TCM.
If the function is enabled with Reverse selected on the shift se-
lector, the transmission will shift to Neutral.
If the function is enabled in a forward drive range higher than the
maximum specified gear range*, the TCM will invoke preselect
downshifts until the specified gear range is attained.
The function is disabled when the enabling switch is released.
3
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142 ALL 42
4 PTO active 143 15 mA ALL 43
For special applications - Input from PTO switch .
Open wire = inactive
+24V = active
Ground = inactive
Enabling this function alerts the TCM that PTO operation has been
requested by the operator.
When the input function is enabled, the TCM disrupts the “modu-
lated main pressure” feature in the transmission, resulting in trans-
mission operation at full main pressure.
When the function is enabled and all of the following conditions
exist, the TCM activates Output Function G (PTO Enable Output).
Required operating conditions for enabling of this function are:
●
accelerator position is "low";
●
engine speed and output speed are within Customer Modifi-
able Constant limits.
5 PTO control 130 500 mA ALL 30
For special applications - 24V output to activate the PTO
This output function is activated when use of the PTO has been
requested and all operating conditions required to enable the PTO
have been satisfied.
6 Reserved
7 Reserved