User manual

VCDS - Fault Codes - Section 6-A
(VAG 1551/1552 functions 02 and 05)
On this screen, VCDS shows you any DTCs (“Diagnostic Trouble Codes” or Fault Codes)
present in the control module in which a communications session is currently active. VCDS
shows the DTC numbers and also decodes each DTC into meaningful text.
At the top of the screen is shown the VAG Number and Component number as found on
the Open Controller screen.
VCDS tells you how many fault codes have been found and displays each of them. The 4,
5,6, or 7-digit number is a standardized VAG fault code, which can be searched in the
Factory Repair Manuals. The text is a description of the part and failure mode. The letter
and number combination in parentheses is the Component Identifier. This is followed by
elaborators describing the condition of the fault such as “004” meaning “No
Signal/Communication”. The second line contains the P-code, or generic OBD-II code (if it
exists, there are thousands of VAG codes without generic OBD-II equivalents).
The Use Aggressive Mode checkbox applies only to UDS/ODX modules and is checked
by default. When checked, VCDS will retrieve more faults than even the factory VAS tools
in some cases. Uncheck this if you wish to correlate VCDS results with results from a VAS
used in manual (non-guided functions) mode. The AutoScan function always uses
Aggressive Mode.