DTC Memory Checking and Erasing
Diagnostic Trouble Code (DTC) Memory, checking and erasing
- Connect vehicle Diagnostic, Testing and Information System VAS 5051 or VAG 1551 Scan Tool and select "Engine Electronics" by entering address word 01. When doing this the engine must be idling.
NOTE: After erasing the DTC memory generate readiness code
- Switch on printer with Print button (indicator light in button lights up).
Indicated on display
Rapid data transfer HELP
Select function XX
- Operate scan tool according to information on display.
- Press buttons -0- and -2- to select function "Check DTC Memory" and confirm entry with -Q- button.
The display will show either the number of malfunctions stored or the message "No DTC recognized".
X DTC recognized
If no malfunction is stored:
- Press -> button.
NOTE:
- If no malfunction is stored in the DTC memory, do not erase memory, otherwise readiness code must be generated.
- If the DTC memory was erased, generate readiness code Readiness Code, Generating
If one or more malfunctions are stored:
The stored malfunctions will be displayed and printed out in sequence.
Indicated on display:
Rapid data transfer HELP
Select function XX
- Locate and eliminate printed out malfunctions according to DTC table Testing and Inspection
- Press buttons -0- and -5- to select function "DTC Memory" and confirm entry with -Q- button.
Indicated on display:
Rapid data transfer ->
DTC Memory is erased!
NOTE:
If the ignition is switched off between checking DTC memory and erasing the DTC memory, the DTC memory will not be erased. It is therefore important to follow the procedure exactly, i.e. first check DTC memory and then erase it.
- Press -> button.
Indicated on display:
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -6- to select function "End Output" and confirm entry with -Q- button.
NOTE:
During test and assembly work malfunctions can be recognized from other control modules, e.g. disconnected harness connectors. Therefore on completion the DTC memories of all control modules must be checked and erased. To do this carry out automatic test sequence: