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SCAN-DIY CR-PRO User’s Manual
information — engine speed, throttle position, coolant temperature, engine load,
vehicle speed, Park/Neutral switch position, and knock sensor condition.
EVAP:
Evaporative Emissions System.
FC:
Fan Control
Freeze Frame:
A block of memory containing DTCs of the vehicle operating conditions for a
specific time.
FTP:
Federal Test Procedure. Strict test of vehicle’s emissions.
Fuel Trim:
Engine computer function that keeps the air/fuel mixture as close to the ideal
14.7:1 stoichiometric ratio as possible
Ground (GND):
An electrical conductor used as a common return for an electric circuit(s) and
with a relative zero potential (voltage).
Hall Effect Sensor:
Any of a type of sensor utilizing a permanent magnet and a transistorized Hall
Effect switch. Hall Effect type sensors may be used to measure speed and
position of the crankshaft or camshaft — for spark timing and fuel injector
control.
HC:
Hydrocarbons
HEI:
High Energy Ignition
HO2S:
Heated Oxygen Sensor. See
O2S
.
HVAC:
Heating, Ventilation & Air Conditioning (System)
I/M:
| SCAN-DIY CR-Pro Work On OBD-II/EOBD-II/CANBUS Protocol Vehicle
