Equus 3140 - Scan Tool CanOBD2&1 Kit - Manual (Page 39)

OBD2 Live Data Mode
VIEWING LIVE DATA
CanOBD2&1 37
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The CanOBD2&1 Scan Tool is a special diagnostic tool that communi-
cates with the vehicle's computer. The CanOBD2&1 Scan Tool lets you
view and/or "capture" (record) "real-time" Live Data. This information
includes values (volts, rpm, temperature, speed etc.) and system sta-
tus information (open loop, closed loop, fuel system status, etc.) gen-
erated by the various vehicle sensors, switches and actuators.
In effect the CanOBD2&1 Scan Tool lets you view, in "real time", the
same signal values generated by the sensors, actuators, switches and/or
vehicle system status information used by the vehicle's computer when
calculating and conducting system adjustments and corrections.
The real time (Live Data) vehicle operating information (values/status)
that the computer supplies to the CanOBD2&1 Scan Tool for each sen-
sor, actuator, switch, etc. is called Parameter Identification (PID) Data.
Each PID (sensor, actuator switch, status, etc.) has a set of operating
characteristics and features (parameters) that serve to identify it. The
CanOBD2&1 Scan Tool displays this information for each sensor, actu-
ator, switch or status that is supported by the vehicle under test.
WARNING: If the vehicle must be driven in order to perform
a troubleshooting procedure, ALWAYS have a second per-
son help you. One person should drive the vehicle while the
other person observes the CanOBD2&1 Scan Tool data.
Trying to drive and operate the CanOBD2&1 Scan Tool at the
same time is dangerous, and could cause a serious traffic
accident.
VIEWING LIVE DATA
1. Follow steps 1 through 7 of the Code Retrieval Procedure (page 24)
to place the CanOBD2&1 Scan Tool in "Code Retrieval" mode.
2. Press and release the ENTER/LD
button to place the CanOBD2&1 Scan
Tool in "Live Data" mode.
3. Real-time Live Data (PID) information
supported by the vehicle under test dis-
plays.
Remember, what you are viewing is "real-time" Live Data.
The values (volts, rpm, temperature, vehicle speed, system
status etc) for the various PIDS displayed may change as the
vehicle's operating conditions change.
4. A vehicle usually supports several PIDs, however, only a limited
amount of PID data can be displayed on the screen at one time. If
additional PID data is available, a small arrow will be shown on the
display. Use the the UP
and DOWN buttons, as necessary,
to scroll up or down to view all available PID data.