Actron Scan Tools PIDs Supplement - Manual (Page 4)

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CLR DST (0 – 65,535 km) or (0 – 40,722 miles)
Distance Since Cleared Diagnostic Codes is the distance driven since diagnostic trouble
codes were erased.
CLR TIM (0 – 65,535 min) or (0 – 1092.25 hours)
Time Since Cleared Diagnostic Code is time since diagnostic trouble codes were erased.
CMD EQ RATxy (0 – 1.99)
Commanded Equivalence Ratio is the ratio of the air/fuel mixture.
• For systems that use conventional oxygen sensors, the commanded equivalence
ratio displays in open loop. In closed loop, the value is 1.0.
• Fuel systems using wide-range/linear oxygen sensors display commanded equiva-
lence ratio in both open and closed loop operation.
COOLANT (- 40 – 215ºC) or (- 40 – 419ºF)
Coolant displays engine coolant temperature (ECT) from a ECT sensor or cylinder head
temperature sensor.
✓
Many diesel engines do not use either sensor and may substitute Engine Oil
Temperature instead.
EGR CMD (0 – 100%)
Commanded Exhaust Gas Recirculation is the normalized percentage of exhaust gas
being recirculated.
EGR ERR (-100 – 99.22%)
Exhaust Gas Recirculation Error shows the error from changing from one condition to
another.
ENG RUN (0 – 65,535 sec.)
Time since Engine Start is the time the engine is running.
✓
ENG RUN stops when engine stalls or engine is turned off for any reason.
ENGINE (0 – 16,383.75 RPM)
Engine is the speed engine is running in revolutions per minute (RPM).
EQ RATxy
O2 Sensor Equivalence Ratio is used for linear or wide-ratio oxygen sensors for Bank x
Sensor y.
EVAP REQ (0 – 100%)
Commanded Evaporative Purge is the position evaporative purge control valve is open in
percentage.
EVAP VP (- 8192 – 8191 PA) or (- 32.8878 – 32.8838 H 2 0)
Evaporative E missions System Vapor Pressure is pressure in the fuel tank
FUEL LVL (0 – 100%)
Fuel Level Input is the percentage of fuel with 0% equaling tank is full and 100% when
tank is empty.
FUEL PRES (0 – 765 kPa) or (0 - 110 psi)
Fuel Rail Pressure is the fuel pressure at the engine when reading in reference to atmo-
sphere pressure.
FUEL SYS (OPEN or CLSD)
Fuel System Status show loop status of fuel system banks.
OPEN: Module is operating in Open Loop control strategy. The vehicle has not yet
satisfied conditions for Module to go to closed loop.
CLSD: PCM currently functioning in Closed loop control strategy, using O2 sen-
sor(s) as feedback for fuel control
OPEN1: Open Loop control strategy is being used by the PCM due to driving condi-
tions. Driving conditions that may cause this to happen are power enrich-