11.
OBD2 Code Reading
.
The factory computer controlling your vehicle constantly monitors operations for
faults and records those faults whenever they occur. For easy display, these faults are identified by alpha numeric codes called
Parameter ID typically five characters long. There are literally thousands of PID codes and while some are common to all vehicles
and manufacturers, some are proprietary to particular manufactures.
a.
Random faults can and do occur during normal operation and do not necessarily represent a problem that must be
corrected. To decide when a detected fault becomes a PID code, the factory computer controlling your vehicle uses
sampling schemes to see how many times a fault is detected in a given amount of time. The faults are grouped into three
categories based upon these sampling schemes… normal operation, pending codes, and active codes.
b.
Normal operation
– the sampling results are below acceptable fault rates and no codes are generated. You will not know
anything about these faults even when scanning the factory computer for codes.
c.
Pending PID codes
– the sampling results indicate a problem that does not rise to the level of immediate attention but will
require attention if it gets any worse. You will not know anything about these faults during normal operation but will see
them if you scan the factory computer.
d.
Active PID codes
– the sampling results indicate a problem requiring immediate attention. Active PID’s will often, but not
always, trigger a Check Engine Light. You will see all Active PID codes when you scan the factory computer.
e.
All Active and Pending OBD2 codes displayed on your Flux2 with the
<
Scan
Scan
Scan
Scan
function.
f.
Refer to Attachment B for a description of OBD2 fault codes and a description of their structure.
g.
Since different OEM’s use different PID, an attempt to list them in this document is impractical. To decode a PID once you
have obtained it from the Flux2, do an internet search using the terminology “OBD2 code xXXXX.”
12.
Scan
.
From the
Main Menu
Main Menu
Main Menu
Main Menu
, press the
<
Scan
Scan
Scan
Scan
button on the display’s left side to launch the OBD2 function.
a.
The display initially reports the number of Stored PID codes detected during the scan… in this example, the vehicle has
three stored codes. To display the Stored PID codes, select the button left of the
<
3 CODES STORED
3 CODES STORED
3 CODES STORED
3 CODES STORED
graphic.
b.
The display now shows the first PID codes alpha numeric code
B3292
B3292
B3292
B3292
and indicates which of the detected PID codes is
currently displayed, in this case
1 of 3
1 of 3
1 of 3
1 of 3
. To view the alpha numeric PID codes for each of the detected codes, press the
button by the current code and the display will cycle through all
stored
codes in a rotary that will return to the first code after
displaying the last.
c.
To show detected pending PID codes, press the button to the right of
NEXT
NEXT
NEXT
NEXT
>
on any
SCAN
SCAN
SCAN
SCAN
page and the display
indicate pending codes. The screen functionality for pending PID codes is identical to stored PID code functionality.
