Allison Transmission 3500 User Manual

9.0EXTERNALWIREHARNESSES,
VEHICLEINTERFACEMODULE,AND
RETARDERCONTROLS
9.1WIREHARNESSES
NOTE:Theexternalharnessconnectingtransmissioncontrolsis
partofthevehiclechassisharnessandtypicallywillnothavean
AllisonTransmissionpartnumber.Theharnesspartsareusually
onlyavailablethroughthevehiclemanufacturerandtheirvendors.
CheckwiththeOEMordealerrsttodeterminetheirwireharness
servicepartsavailability.AnyAllisondistributorordealercanassist
withdeterminingserviceabilityoftheexternalharnessaswell.The
internaltransmissionharnessinsidethetransmissionisanAllison
partandonlyavailablefromanAllisondistributorordealer.
Thetransmissioncontrolsrequiretheuseofwiringharnessestoconnectthe
varioussystemcomponents,including:
•TransmissionControlModule(TCM)
•Mainconnectoronthetransmission
•Enginespeedsensor
•Turbineshaftspeedsensor(4000Series)
•Outputshaftspeedsensor
•Serialcommunicationdatalink
•Shiftselector
•Diagnosticconnector
•Retardercontrols(ifequipped)
•Vehicleinterfacewiring
•ThrottlePositionSensor(TPS)(onlywithmechanicallycontrolled
engines)
•OptionalVehicleInterfaceModule(VIM)
144

Allison Transmission 3500 Specifications

General

Retarder	Optional
Protection Rating	IP67
Gears	6-speed
Type	Automatic
Input Voltage	12V or 24V
Communication Protocol	J1939
Operating Temperature Range	-40°C to +85°C