Global pid definitions – Actron Scan Tools PIDs Supplement User Manual

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Global PID Definitions

All global parameter identification data (PID) listed was verified on actual vehicles to guar-
antee accuracy. PID Definitions were obtained from reliable sources and are accurate at
time of printing. It is possible that some newer vehicles may contain data different from that
listed. Always refer to vehicle service manual for manufacturer specific PIDs.

The PID list is organized in alphabetical order — the same way the scan tool does. Remem-
ber, always refer to a vehicle service manual for detailed diagnostic procedures when trou-
bleshooting incorrect PID values.

Types of Data Parameters

INPUT:These data parameters are obtained from sensor circuit outputs.
Sensor circuit outputs are inputs to vehicle’s PCM. For example, if Oxygen
Sensor circuit was generating a 400mV signal, then scan tool would read
O2S (v) 0.40.

OUTPUT:These data parameters are outputs or commands that come di-
rectly from computer module(s). For example; the ignition spark advance is
controlled by PCM, on most vehicles, monitoring this PID shows spark out-
put from PCM. The scan tool would display IGN ADV(º) 10.

CALCULATED:These data parameters are calculated after analyzing vari-
ous inputs to

VALUE the vehicle’s computer module(s). For example, the engine load.
The PCM calculates this from sensor inputs and displays it in a percentage.

PCM VALUE:Is information that is stored in the computer module(s)’ mem-
ory and determined to be useful to service technician. An example of this is
TROUBLE CODE value, the DTC that caused a freeze frame capture.

NOTE: Several different causes can have the same parameter indication. For
information on diagnostics consult vehicle service manuals.

DATA PARAMETER LIST

ABS FRP (0 - 65,5350 kPA) or (0 - 95050.5 psi)

Absolute Fuel Rail Pressure

is the fuel pressure at the engine in respect to atmospheric

pressure.

ABS LOAD (0 - 100%)

Absolute Load Value

is the normalized value of air mass per intake stroke in percentage.

ABSLT TPS (0 - 100%)

Absolute Throttle Position

represents normalized distance the throttle is opened.

ACC POS D,E or F (0 - 100%)

Accelerator Pedal Position

represents normalized distance the gas pedal is pressed.

BARO PRESS (0 - 255 kPA) or (0 - 36.9 psi)

Barometric Pressure

is usually received from a dedicated barometer, manifold absolute

pressure sensor, and other inputs during certain modes of driving.

The Baro Press may not exhibit the same value as weather services, which
measure barometric pressure at sea level.

CALC LOAD (0 - 100%)

Calculated LOAD Value

indicates the normalized load value on the engine.

CAT TEMPxy (- 40 – 6513.5ºC) or ( - 40 – 9999.9ºF)

Catalyst Temperature

displays the catalyst substrate temperature for a Bank x catalyst (if

used by control module strategy for OBD monitoring) or displays the Bank x Sensor y
catalyst temperature sensor.

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