Equus 3030 - CanOBD2 Car Reader - Manual (Page 11)

OBD2 9
Using the Car Reader
CODE RETRIEVAL PROCEDURE
- Turn the ignition key off, wait 5 seconds and turn the key back on to
reset the computer.
- Make sure your vehicle is OBD 2 compliant. See VEHICLES COVERED
on page 2 for vehicle compliance verification information.
6. Read and interpret the Diagnostic Trouble Codes using the LCD display and
the green, yellow and red LEDs.
The green, yellow and red LEDs are used (with the LCD display) as
visual aids to make it easier for the user to determine engine system
conditions.
■ Green LED - Indicates that all engine
systems are "OK" and running normally. All
monitors on the vehicle are active and are
performing their diagnostic testing, and no
trouble codes are present. A zero will show on
the Car Reader’s LCD display for further
confirmation.
■ Yellow LED - Indicates one of the following
conditions:
PENDING CODE PRESENT - If the yellow
LED is lit, it may indicate the existence of a
pending code. Check the Car Reader’s LCD
display for confirmation. A pending code is
confirmed by the presence of a numeric code
and the word PENDING on the Car Reader’s
LCD display. If no pending code is shown, the
yellow LED indicates Monitor Status (see the
following).
MONITOR STATUS - If the Car Reader’s LCD
display shows a zero (indicating there are no
DTCs present in the vehicle's computer), but
the yellow LED is lit, it indicates a "Monitor Has
Not Run" status. This means that some of the
Monitors on the vehicle have not yet finished
their diagnostic self-testing. This condition is
confirmed by one or more blinking Monitor
icons on the LCD display. A blinking Monitor
icon means the Monitor has not yet run and
finished its diagnostic self-testing. All Monitor
icons that are solid have completed their
diagnostic self-testing.
■ Red LED - Indicates there is a problem with
one or more of the vehicle's systems. The red
LED is also used to show that DTC(s) are
present (displayed on the Car Reader’s LCD
display). In this case, the Multifunction Indicator
(Check Engine) lamp on the vehicle's instrument
panel will light steady on.
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