About the Code Reader
DISPLAY FUNCTIONS
4
6.
YELLOW LED
- Indicates there is a possible problem. A “Pending”
DTC is present and/or some of the vehicle's emission monitors have
not run their diagnostic testing.
7.
RED LED
- Indicates there is a problem in one or more of the
vehicle's systems. The red LED is also used to show that DTC(s)
are present. DTCs are shown on the Code Reader’s LCD display. In
this case, the Malfunction Indicator (“Check Engine”) lamp on the
vehicle's instrument panel will light steady on.
8.
LCD Display
- Displays test results, Code Reader functions and
Monitor status information. See DISPLAY FUNCTIONS, below, for
details.
9.
CABLE
- Connects the Code Reader to the vehicle's Data Link
Connector (DLC).
DISPLAY FUNCTIONS
Figure 2. Display Functions
See Figure 2 for the locations of items 1 through 16 below.
1.
I/M MONITOR STATUS field
- Identifies the I/M Monitor status area.
2.
Monitor icons
- Indicate which Monitors are supported by the
vehicle under test, and whether or not the associated Monitor has
run its diagnostic testing (Monitor status). When a Monitor icon is
solid green, it indicates that the associated Monitor has completed
its diagnostic testing. When a Monitor icon is flashing red, it
indicates that the vehicle supports the associated Monitor, but the
Monitor has not yet run its diagnostic testing.
The I/M Monitor Status icons are associated with INSPECTION
and MAINTENANCE (I/M) READINESS STATUS. Some states
require that all vehicle Monitors have run and completed their
diagnostic testing before a vehicle can be tested for Emissions
(Smog Check). A maximum of fifteen Monitors are used on OBD2
systems. Not all vehicles support all fifteen Monitors. When the
Diagnostic Tool
is linked to a vehicle, only the icons for Monitors
that are supported by the vehicle under test are visible on the
display.
2
3
6
9
8
13
14
15
12
10
11
7
4
1
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