DTC Memory Checking and Erasing
Diagnostic Trouble Code (DTC) Memory, Checking And Erasing
Special tools and equipment
V.A.G1551 Scan Tool (or VAG1552 mobile scan tool) with VAG1551/3 cable
Procedure
NOTE:
All functions previously performed with the V.A.G1551/1552 can also be performed using the new VAS5051 tester.
- Connect V.A.G 1551 scan tool (VAG1552). Start engine and select the Engine Control Module (ECM) using address word 01. (connecting scan tool and selecting ECM) [1][2][3]Connecting VAG 1551 Scan Tool
Only if engine does not start:
- Operate starter for approx. 6 seconds. Do not switch ignition off afterward.
- Press PRINT button to turn on Scan Tool (ST) printer. Indicator lamp in button must light up.
Indicated on display
Rapid data transfer HELP
Select function XX
- Operate scan tool according to indications on display:
- Press buttons -0- and -2- to select "Check DTC Memory" function 02. Press -Q- button to confirm input.
Number of stored DTCs or "No DTC recognized" will be indicated on display.
X DTC recognized ->
NOTE:
If no malfunctions are stored, do not erase DTC memory unnecessarily or else readiness code will be reset.
- Press -> button.
If one or more DTCs are stored:
The stored malfunctions are displayed and printed out one after the other.
After stored malfunctions have been printed out, display indicates:
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -5- to select "Erase DTC Memory" function 05. Press -Q- button to confirm input.
Indicated on display
Rapid data transfer ->
DTC Memory is erased!
NOTE:
If ignition was switched off between the steps "Check DTC memory" and "Erase DTC memory", DTC memory will not be erased.
- Press -> button.
Indicated on display
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -6- to select "End Output" function 06. Press -Q- button to confirm input.
- Repair malfunctions that were printed out using DTC table:
SAE P0-Codes P Code Charts
SAE P1-Codes P Code Charts