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OBD2 DIAGNOSTICS
Viewing Scan Results – OBD2 Diagnostics
Each report begins with a vehicle information bar that includes a
Report ID,
the vehicle’s description
(year/make/
model),
the last six digits of the
Vehicle Identification Number (VIN)
and the
odometer reading (ODO)
at the time
the scan was performed.
EMISSIONS READINESS – Interpreting Results
Indicates whether the vehicle is ready for an Emissions Test (Smog Check) through a “traffic light” type display.
When viewing the
Emission Readiness
field, use the following definitions to identify the vehicle’s Emissions Test
readiness status:
n
Green
- Indicates all engine systems are operating normally. The vehicle is ready for an
Emissions Test (Smog Check), and there is a good possibility it can be certified.
n
Yellow
– Indicates one of the following two conditions is present:
━
A “
Pending
” Diagnostic Trouble Code is present. It is possible the vehicle can be tested
for emissions and certified. Many areas (states / countries) allow an Emissions Test to be
performed if the only code present is a “PENDING” code.
━
One or more monitors “
Have Not Run
” their diagnostic testing. The issue of the vehicle
being ready for an Emissions Test will depend on the emissions regulations and laws of
your local area.
━
Some areas require that all Monitors indicate a “
Has Run”
status before an Emissions
Test (Smog Check) can be performed. Other areas only require that some, but not all,
Monitors indicate a
“Has Run”
status before an Emissions Test can be performed.
n
Red
- Indicates there is a problem with one or more of the vehicle’s systems, and Diagnostic
Trouble Code(s) (DTCs) are present. The vehicle is not ready for an Emissions Test. The
problem(s) that caused the DTCs to set must be repaired before an Emissions Test can be
performed.
MIL DTC Code
This is the code that has commanded the vehicle’s Malfunction Indicator Lamp (MIL) “on,” and is the code for which
Freeze Frame
data stored. This field includes the DTC number, description, and MIL status (ON or OFF).
