Allison Transmission 3000 Series User Manual

Table6–2.DTCListandDescriptions(cont'd)
DTC
Description
CHECK
TRANSLight
InhibitedOperation
Description
P1739
IncorrectLowGearRatio
Yes
Command2ndandallow
shifts2through6,N,R
P1790
GearShiftModule1
CalibratedInvalid
Yes
Shiftselectorlanguage
orunitsincorrect
P1791
GearShiftModule2
CalibratedInvalid
Yes
Shiftselectorlanguage
orunitsincorrect
P1891
ThrottlePositionSensor
PWMSignalLow
No
Usedefaultthrottle
values
P1892
ThrottlePositionSensor
PWMSignalHigh
No
Usedefaultthrottle
values
P2184
EngineCoolant
TemperatureSensor2
CircuitLow
No
Usedefaultengine
coolantvalues
P2185
EngineCoolant
TemperatureSensor2
CircuitHigh
No
Usedefaultengine
coolantvalues
P2637TorqueManagement
FeedbackSignalA
Yes
InhibitSEM
P2641TorqueManagement
FeedbackSignalB
YesInhibitLRTP
P2669
ActuatorSupplyCircuit
Voltage2Open(HSD2)
Yes
SOLOFF ,InhibitTCC
operation,InhibitMain
modulation,DNA
P2670
ActuatorSupplyCircuit
VoltageLow(HSD2)
Yes
DNS,SOLOFF
(hydraulicdefault)
P2671
ActuatorSupplyCircuit
Voltage2High(HSD2)
Yes
DNS,SOLOFF
(hydraulicdefault)
P2684
ActuatorSupplyCircuit
Voltage3Open(HSD3)
Yes
SOLOFF ,InhibitTCC
operation,InhibitMain
modulation,DNA
P2685
ActuatorSupplyCircuit
Voltage3Low(HSD3)
Yes
DNS,SOLOFF
(hydraulicdefault)
P2686
ActuatorSupplyCircuit
Voltage3High(HSD3)
Yes
DNS,SOLOFF
(hydraulicdefault)
123

Allison Transmission 3000 Series Specifications

General

Type	Automatic Transmission Controller
Control Module	Integrated
Shift Energy Management	Yes
Number of Gears	6
Torque Converter	Yes, with lock-up clutch
Retarder	Optional
PTO Provision	Yes
Input Voltage	12V or 24V
Communication Protocol	SAE J1939
Operating Temperature Range	-40°C to +85°C