Allison Transmission 3000 Series User Manual

Table6–2.DTCListandDescriptions(cont'd)
DTC
Description
CHECK
TRANSLight
InhibitedOperation
Description
P2761
TorqueConverterClutch
(TCC)PressureControl
Solenoid(PCS)Control
CircuitOpen
Yes
InhibitTCCoperation
P2763
TorqueConverterClutch
(TCC)PressureControl
Solenoid(PCS)Control
CircuitHigh
Yes
InhibitTCCoperation
P2764
TorqueConverterClutch
(TCC)PressureControl
Solenoid(PCS)Control
CircuitLow
Yes7-speed:allow2through
6,N,R.InhibitTCC
operation
P2789
TransmissionClutchLife
Expired(ClutchAdaptive
LearningatLimit)
YesNone
P2793
GearShiftDirection
Circuit
Yes
*
IgnoresPWMinputfrom
shiftselector
**
DependingonOEM
conguration,mayor
maynotallowdirection
changesduringfaults
P2808
PressureControl
Solenoid(PCS)6Stuck
Off
Yes
DNS,RPR
P2809
PressureControl
Solenoid(PCS)6Stuck
On
Yes
DNS,RPR
P2812
PressureControl
Solenoid(PCS)6Control
CircuitOpen
Yes
DNS,SOLOFF
(hydraulicdefault)
P2813
PressureControl
Solenoid(PCS)6System
Performance
Yes
TCMforcesVMMoff,
TCMinhibitsTCC
engagement
P2814
PressureControl
Solenoid(PCS)6Control
CircuitLow
Yes
DNS,SOLOFF
(hydraulicdefault)
126

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