DTC Memory Checking and Erasing

Special tools and equipment
- V.A.G 1551 scan Tool (or VAG 1552 mobile scan tool) with VAG 1551/3B cable

Procedure


NOTE: All functions previously performed with the V.A.G 1551/1552 can also be performed using the new VAS 5051 tester.


- Connect VAG 1551 scan tool (VAG 1552). Start engine and select the Engine Control Module (ECM) using address word 01. (connecting scan tool and selecting ECM).


NOTE:
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 malfunctions recognized!


NOTE:
If no DTCs are stored:
- Press -> button.


If one or more DTCs are stored:
The stored malfunctions are displayed and printed out in sequence.

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
- Re-generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes