Glossary Of Terms

AAT  ambient air temp (sensor)

ABS  anti-lock brake system

A/C  air conditioning

APP  accelerator pedal position (sensor)

ASD  auto shutdown

backfire, popback  fuel ignites in either the intake or the exhaust system

BCM  body control module

BP  boost pressure (sensor)

CKP  crankshaft position (sensor)

CMP  camshaft position (sensor)

cuts out, misses  a steady pulsation or the inability of the engine to maintain a consistent RPM

DLC  data link connector

detonation, spark knock  a mild to severe ping, especially under loaded engine conditions

ECM  engine control module

ECT  engine coolant temperature (sensor)

EGR  exhaust gas recirculation (solenoid/valve)

FCM  front control module

hard start  the engine takes longer than usual to start, even though it is able to crank at normal speed.

IAT  intake air temperature (sensor)

lack of power, sluggish  the engine power output has been reduced

MAF  mass air flow (sensor)

MIL  malfunction indicator lamp

ms  millisecond(s)

PDC  power distribution center

poor fuel economy  there is significantly less fuel mileage than other vehicles of the same design and configuration

runs rough/unstable idle  the engine runs unevenly at idle causing the engine to shake if it is severe enough

S/C  speed control

SKIM  sentry key immobilizer module

SKIS  sentry key immobilizer system

start and stall  The engine starts but immediately dies (stalls)

surge  engine RPM fluctuation without corresponding change in accelerator pedal position

SRC  signal range check

TCM  transmission control module (EATX)

WIF  water in fuel (sensor)

VSS  vehicle speed sensor