A/C—Air Conditioning
AC—Alternating Current
ACC—Accessory
A/D—Analog to Digital
AMP—Ampere
ASCII—American Standard Code for Information Interchange
AT/MT—Allison AT.MT automatic transmission
ATA—American Trucking Association
AWG—American Wire Gauge
BARO—Barometric Pressure Sensor
BAT/BATT—Battery
BNO—Brake Normally Open
C—Celsius / Centigade
CAP—Cold Ambient Protection system
CEL—Check Engine Light
CLS—Coolant Level Switch
CMP—Camshaft Position Sensor; also referred to as TRS
COL—Change Oil Lamp
CYL—Cylinder
DC—Direct Current
DDC—Detroit Diesel Corporation
DDS—Driveline Disengagement Switch
DDR—Diagnostic Data Reader
DVOM—Digital Volt Ohm Meter
EFPA—Electronic Foot Pedal
EFRC—Engine Family Rating Code
ECI—Engine Crank Inhibit
ECL—Engine Coolant Level System
ECM—Electronic Control Module
ECM_PWR—Electronic Control Module Power Supply
ECT—Engine Coolant Temperature Sensor
EDL—Engine Data Line
EFAN—Engine Fan
ENG—Engine
EST—Electronic Service Tool
EOP—Engine Oil Pressure Sensor
EOT—Engine Oil Temperature Sensor
EWPS—Engine Warning and Protection System
F—Fahrenheit
FMI—Failure Mode Identifier
FUNC—Function
HEUI—Hydraulically Actuated Electronically Controlled Unit Injection
Hg—Mercury
HP—Horsepower
IAT—Intake Air Temperature Sensor
ICP—Injection Control Pressure Sensor
IGN—Ignition
INJ—Injector Drive Circuits
IPR—Injection Pressure Regulator
IPR_SYS—Injection Pressure Regulation System
IST—Idle Shutdown Timer
IVS—Idle Validation Switch
KOEO—Key Off Engine Off test
m—Meters
MAP—Manifold Absolute Pressure Sensor
MID—Message Identification (ID)
mm—Millimeter
MPH—Miles per Hour
OCC—Output Circuit Check
OEM—Original Equipment Manufacturer
OWL—Oil / Water Lamp
P/N—Part Number
PGS—Pressure Sensor Governor
PID—Parameter Identification (ID)
RAM—Random Access Memory
RESUME / ACCEL—Resume / Accelerate switch
r/min—Revolutions per minute
ROM—Read Only Memory
RPS—Remote Accelerator Pedal Sensor
RSE—Radiator Shutter Enable
SCCS—Speed Control Command Switches
SEL—Stop Engine Light
SID—Subsystem Identification (ID)
SPDT—Single Pole Double Throw
SPST—Single Pole Single Throw
STI—Self Test Input
STI / WARN—Self Test Input Switch and Engine Warn Light
TACH—Tachometer Input Circuits
TDC—Top Dead Center
TSA—Two-Speed Axle Input Circuit
TRS—Timing Reference Sensor
VAC—Volts, Alternating Current
VDC—Volts, Direct Current
VIH—Vehicle Interface Harness
VIN—Vehicle Identification Number
VRE—Vehicle Retarder
VREF—Voltage Reference Circuits
VSS—Vehicle Speed Signal
WTEC—Allison MD WTEC transmission
| Series 40E Troubleshooting Manual – 6SE241 |
| Generated on 10-13-2008 |