not located under dashboard, a label should be there telling location. For
some Asian and European vehicles, the DLC is located behind the
ashtray and the ashtray must be removed to access the connector. If the
DLC cannot be found, refer to the vehicle’s service manual for the
location.
1.3 Diagnostic Trouble Codes (DTCs)
OBD II Diagnostic Trouble Codes are codes that are stored by the on-
board computer diagnostic system in response to a problem found in
the vehicle. These codes identify a particular problem area and are
intended to provide you with a guide as to where a fault might be
occurring within a vehicle. OBD II Diagnostic Trouble Codes consists of
a five-digit alphanumeric code. The first character, a letter, identifies
which control system sets the
code. The other four
characters, all numbers,
provide additional information
on where the DTC originated
and the operating conditions
that caused it to set. Here
below is an example to
illustrate the structure of the
digits:
